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Nova-Camacho LM, Acosta AM, Trpkov K, Sangoi AR, Pierre A, Chou A, Yilmaz A, Morini A, Rodrigues Â, Fletcher CDM, Perez-Montiel D, Maclean F, Contreras F, Queipo FJ, Muñiz Unamunzaga G, Mesa H, de Torres I, Ruiz I, Alvarado-Cabrero I, Lobo J, Schwartz L, Cheng L, Akgul M, García-Martos M, Palmer MB, Aron M, Raspollini MR, Manrique Celada M, Hwang M, Idrees MT, Rioux-Leclercq N, Zalles N, Vergara N, Lal P, Wobker S, Kammerer-Jacquet SF, Prendeville S, Tilmant T, Ulbright TM, Verkarre V, Collins K, Williamson SR, Panizo A. Metastatic solid tumors to the testis: a clinicopathologic evaluation of 157 cases from an international collaboration. Hum Pathol 2023; 139:37-46. [PMID: 37331529 DOI: 10.1016/j.humpath.2023.06.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/31/2023] [Accepted: 06/13/2023] [Indexed: 06/20/2023]
Abstract
To elucidate the spectrum of metastatic solid tumors to the testis and their clinicopathologic features. The databases and files of 26 pathology departments from 9 countries on 3 continents were surveyed to identify metastatic solid tumors to the testis and to characterize their clinicopathologic features in detail. We compiled a series of 157 cases of metastatic solid tumors that secondarily involved the testis. The mean patient age at diagnosis was 64 years (range, 12-93 years). Most patients (127/144; 88%) had clinical manifestation of the disease, with testicular mass/nodule (89/127; 70%) being the most common finding. The main mechanism of testicular involvement was metastasis in 154/157 (98%) cases. Bilateral testicular involvement was present in 12/157 (8%) patients. Concurrent or prior extratesticular metastases were present in 78/101 (77%) patients. The diagnosis was made mainly in orchiectomy specimens (150/157; 95%). Different types of carcinomas (138/157; 87%), most commonly adenocarcinoma (72/157; 46%), were the most common malignancies. The most common primary carcinomas included prostatic (51/149; 34%), renal (29/149; 20%), and colorectal (13/149; 9%). Intratubular growth was identified in 13/124 (11%) cases and paratesticular involvement was found in 73/152 (48%) cases. In patients with available follow-up (110/157; 70%), more than half (58/110; 53%) died of disease. In this largest series compiled to date, we found that most secondary tumors of the testis represent metastases from the genitourinary and gastrointestinal tract carcinomas and typically occur in the setting of disseminated disease.
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Affiliation(s)
- Luiz M Nova-Camacho
- Department of Pathology, Donostia University Hospital, San Sebastian 20014, Spain.
| | - Andres M Acosta
- Department of Pathology, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA 02115, USA; Department of Pathology, Faulkner Hospital, Boston, MA 02130, USA
| | - Kiril Trpkov
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary T2V 1P9, Canada
| | - Ankur R Sangoi
- Department of Pathology, El Camino Hospital, Mountain View, CA 94040, USA
| | - Allaume Pierre
- Department of Pathology, CHU Rennes - Hôpital Pontchaillou, Rennes 35000, France
| | - Angela Chou
- Department of Anatomical Pathology, Royal North Shore Hospital and University of Sydney, Sydney 2065, Australia
| | - Asli Yilmaz
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary T2V 1P9, Canada
| | - Aurélien Morini
- Department of Pathology, Grand Hôpital de L'Est Francilien, Jossigny, Ile-de-France 77600, France
| | - Ângelo Rodrigues
- Department of Pathology, Portuguese Oncology Institute of Porto, Porto 4200-072, Portugal
| | - Christopher D M Fletcher
- Department of Pathology, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA 02115, USA
| | - Delia Perez-Montiel
- Department of Pathology, Instituto Nacional de Cancerología, Mexico City 14080, Mexico
| | - Fiona Maclean
- Department of Pathology and Laboratory Medicine, Douglass Hanly Moir Pathology, Sonic Healthcare, Sydney 2000, Australia
| | - Félix Contreras
- Laboratorio de Patología, Clínica Universitaria Unión Médica, PUCMM, Santiago 51000, Dominican Republic
| | | | | | - Hector Mesa
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Inés de Torres
- Department of Pathology, Vall D'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona 08035, Spain
| | - Irune Ruiz
- Department of Pathology, Donostia University Hospital, San Sebastian 20014, Spain
| | - Isabel Alvarado-Cabrero
- Department of Pathology Oncology, Star Medica Hospital, Oncology Hospital, IMSS, Mexico City 03810, Mexico
| | - João Lobo
- Department of Pathology, Portuguese Oncology Institute of Porto, Porto 4200-072, Portugal; Cancer Biology and Epigenetics Group, IPO Porto Research Center (GEBC CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto) & Porto Comprehensive Cancer Center (P.CCC), Porto 4200-072, Portugal; Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar, University of Porto (ICBAS-UP), Porto 4050-313, Portugal
| | - Lauren Schwartz
- Department of Pathology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Liang Cheng
- Department of Pathology and Laboratory Medicine, Brown University Warren Alpert Medical School, Providence, RI 02903, USA
| | - Mahmut Akgul
- Department of Pathology and Laboratory Medicine, Albany Medical Center, Albany, NY 12208, USA
| | - María García-Martos
- Department of Pathology, Gregorio Marañón University Hospital, Madrid 28007, Spain
| | - Matthew B Palmer
- Department of Pathology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Manju Aron
- Department of Pathology and Laboratory Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | | | | | - Michael Hwang
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Muhammad T Idrees
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | | | - Nicole Zalles
- Department of Pathology and Laboratory Medicine, Cleveland Clinic, Cleveland, OH 44106, USA
| | - Norge Vergara
- Department of Pathology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Priti Lal
- Department of Pathology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Sara Wobker
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | | | - Susan Prendeville
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto M5S 1A1, Canada
| | - Théau Tilmant
- Department of Pathology, European Georges Pompidou Hospital, Université Paris-Cité, Paris 75015, France
| | - Thomas M Ulbright
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Virginie Verkarre
- Department of Pathology, European Georges Pompidou Hospital, Université Paris-Cité, Paris 75015, France
| | - Katrina Collins
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Sean R Williamson
- Department of Pathology and Laboratory Medicine, Cleveland Clinic, Cleveland, OH 44106, USA
| | - Angel Panizo
- Department of Pathology, University Hospital of Navarra, Pamplona 31008, Spain
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Yoon JY, Rosenbaum JN, Vergara N, Cohen RB, Wilson RB. Bayesian approach to interpreting somatic cancer sequencing data: a case in point. J Clin Pathol 2020; 74:jclinpath-2020-206895. [PMID: 32855180 DOI: 10.1136/jclinpath-2020-206895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/05/2020] [Accepted: 08/06/2020] [Indexed: 11/03/2022]
Abstract
Cancer lineage/tissue-of-origin assignment in cancers of unknown primary remains a challenge even when aided by massively parallel sequencing. The stakes are high for patients as many contemporary therapeutic strategies are disease-specific, and the biological differences can influence the patients' responses. Herein, we provide an example of how Bayesian analysis can be used to merge data from clinical history, histology, immunohistochemistry (IHC) and cancer DNA sequencing to assist in tissue-of-origin assignment. Iterative Bayesian analysis is performed through a set of simple calculations to calculate the OR between the differential diagnoses. We illustrate a clinical case, where the distinction between a primary lung versus metastatic bladder cancer was aided meaningfully by iterative Bayesian analyses, incorporating IHC and sequencing data.
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Affiliation(s)
- Ju-Yoon Yoon
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jason N Rosenbaum
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Center for Personalized Diagnostics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Norge Vergara
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Roger B Cohen
- Division of Hematology Oncology, Department of Medicine, Perelman Center for Advanced Medicine, Philadelphia, Pennsylvania, USA
| | - Robert B Wilson
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
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Elhanafi S, Mahmud N, Vergara N, Kochman ML, Das KK, Ginsberg GG, Rajala M, Chandrasekhara V. Comparison of endoscopic ultrasound tissue acquisition methods for genomic analysis of pancreatic cancer. J Gastroenterol Hepatol 2019; 34:907-913. [PMID: 30422342 PMCID: PMC6497552 DOI: 10.1111/jgh.14540] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/11/2018] [Accepted: 11/04/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND AIM Tumor genotyping may allow for improved prognostication and targeted therapy for pancreatic ductal adenocarcinoma (PDAC). We aimed to compare endoscopic ultrasonography (EUS) with fine needle aspiration (FNA) to fine needle biopsy (FNB) for obtaining sufficient tissue for genomic analysis and theranostic potential. METHODS A retrospective cohort study of patients that underwent EUS-FNA or EUS-FNB with either positive or suspicious cytology for PDAC between March 2016 and December 2017. Demographic, procedural, and cytology data were recorded. Genetic alterations were recorded, and Kaplan-Meier survival curves were calculated. RESULTS The study included 167 patients: 145 patients had FNA and 22 patients underwent FNB. Overall, 117 samples (70.1%) were sufficient for targeted next-generation sequencing. FNB resulted in a higher proportion of patients with sufficient samples compared with FNA (90.9% vs 66.9%; P = 0.02). In multivariable modeling, only FNB (odds ratio 4.95, 95% confidence interval 1.11-22.05, P = 0.04) was associated with sufficient sampling for genomic testing. FNB was more likely to obtain sufficient tissue from tumors ≤ 3 cm (100% vs 68.4%, P = 0.017) and tumors located in the head/neck of the pancreas (100% vs 63.1%, P = 0.03) compared with FNA. The most commonly identified alterations were in KRAS (88%), TP53 (68%), and SMAD4 (16%). CONCLUSIONS Endoscopic ultrasonography can reliably obtain sufficient tissue from PDAC for targeted genomic sequencing for prognostication and theranostics. FNB should be considered when tumor genotyping is requested, especially for tumors ≤ 3 cm or tumors located in the head/neck of the pancreas.
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Affiliation(s)
- Sherif Elhanafi
- Division of Gastroenterology, Department of Medicine, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
| | - Nadim Mahmud
- Division of Gastroenterology, Department of Medicine, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
| | - Norge Vergara
- Department of Clinical Pathology and Laboratory Medicine, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
| | - Michael L Kochman
- Division of Gastroenterology, Department of Medicine, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
| | - Koushik K Das
- Division of Gastroenterology, Washington University School of Medicine, St. Louis, Massachusetts, USA
| | - Gregory G Ginsberg
- Division of Gastroenterology, Department of Medicine, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
| | - Michael Rajala
- Division of Gastroenterology, Department of Medicine, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
| | - Vinay Chandrasekhara
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
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Nayak A, Depasquale B, Vergara N, Guzzo TA, Lal P. Villous Adenoma Arising in the Native Bladder Mucosa and the Upper Urinary Tract With Coexisting Neuroendocrine Carcinoma Following Augmentation Cystoplasty. Int J Surg Pathol 2019; 27:450-456. [PMID: 30701999 DOI: 10.1177/1066896919826708] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Villous adenomas arising in the bladder following augmentation cystoplasty procedures are exceedingly rare. Even rarer is their occurrence in the native bladder mucosa and the upper urinary tract. In this article, we present a unique case of multifocal recurrent villous adenoma involving native bladder mucosa of an augmented bladder, bilateral ureters, and renal pelvis, with coexistent foci of adenocarcinoma and neuroendocrine carcinoma, in a patient with history of augmentation colocystoplasty. We additionally discuss the pathogenesis of development of carcinoma in the setting of augmentation cystoplasty.
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Affiliation(s)
- Anupma Nayak
- 1 University of Pennsylvania, Philadelphia, PA, USA
| | | | | | | | - Priti Lal
- 1 University of Pennsylvania, Philadelphia, PA, USA
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Shabason JE, Chen J, Apisarnthanarax S, Damjanov N, Giantonio B, Loaiza-Bonilla A, O'Dwyer PJ, O'Hara M, Reiss KA, Teitelbaum U, Wissel P, Drebin JA, Vollmer C, Kochman M, Mick R, Vergara N, Jhala N, Doucette A, Lukens JN, Plastaras JP, Metz JM, Ben-Josef E. A phase I dose escalation trial of nab-paclitaxel and fixed dose radiation in patients with unresectable or borderline resectable pancreatic cancer. Cancer Chemother Pharmacol 2018; 81:609-614. [PMID: 29362902 DOI: 10.1007/s00280-018-3519-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 01/09/2018] [Indexed: 11/24/2022]
Abstract
PURPOSE Patients with locally advanced pancreatic cancer typically have poor outcomes, with a median survival of approximately 16 months. Novel methods to improve outcomes are needed. Nab-paclitaxel (Abraxane) has shown efficacy in pancreatic cancer and is FDA-approved for metastatic disease in combination with gemcitabine. Nab-paclitaxel is also a promising radiosensitizer based on laboratory studies, but it has never been clinically tested with definitive radiotherapy for locally advanced pancreatic carcinoma. METHODS We performed a phase 1 study using a 3 + 3 dose escalation strategy to determine the safety and tolerability of dose-escalated nab-paclitaxel with fractionated radiotherapy for patients with unresectable or borderline resectable pancreatic cancer. Following induction chemotherapy with two cycles of nab-paclitaxel and gemcitabine, patients were treated with weekly nab-paclitaxel and daily radiotherapy to a dose of 52.5 Gy in 25 fractions. Final dose-limiting toxicity (DLT) determination was performed at day 65 after the start of radiotherapy. RESULTS Nine patients received nab-paclitaxel at a dose level of either 100 mg/m2 (n = 3) or 125 mg/m2 (n = 6). There were no observed grade 3 gastrointestinal toxicities. One DLT (grade 3 neuropathy) was observed in a patient who received 125 mg/m2 of nab-paclitaxel. Other grade 3 toxicities included fatigue (11%), anemia (11%) and neutropenia (11%). No grade 4 toxicities were observed. Following chemoradiotherapy, four patients (borderline resectable, n = 2 and unresectable, n = 2) underwent surgical resection, all with negative margins and with significant treatment effect with limited tumor viability. CONCLUSIONS The combination of fractionated radiation and weekly full dose nab-paclitaxel was safe and well-tolerated.
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Affiliation(s)
- Jacob E Shabason
- Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, PCAM-2 West, 3400 Civic Center Blvd., Philadelphia, PA, 19104, USA.
| | - Jerry Chen
- Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, PCAM-2 West, 3400 Civic Center Blvd., Philadelphia, PA, 19104, USA
| | - Smith Apisarnthanarax
- Department of Radiation Oncology, University of Washington School of Medicine, Seattle, WA, USA
| | - Nevena Damjanov
- Division of Hematology/Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Bruce Giantonio
- Division of Hematology/Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Arturo Loaiza-Bonilla
- Division of Hematology/Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Peter J O'Dwyer
- Division of Hematology/Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Mark O'Hara
- Division of Hematology/Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Kim A Reiss
- Division of Hematology/Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Ursina Teitelbaum
- Division of Hematology/Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Paul Wissel
- Division of Hematology/Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Jeffrey A Drebin
- Department of Surgery, Memorial Sloane Kettering Cancer Center, New York, NY, USA
| | - Charles Vollmer
- Department of Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Michael Kochman
- Gastroenterology Division, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Rosemarie Mick
- Department of Biostatistics and Epidemiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Norge Vergara
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Nirag Jhala
- Department of Pathology and Laboratory Medicine, Temple University Hospital, Philadelphia, PA, USA
| | - Abigail Doucette
- Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, PCAM-2 West, 3400 Civic Center Blvd., Philadelphia, PA, 19104, USA
| | - John N Lukens
- Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, PCAM-2 West, 3400 Civic Center Blvd., Philadelphia, PA, 19104, USA
| | - John P Plastaras
- Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, PCAM-2 West, 3400 Civic Center Blvd., Philadelphia, PA, 19104, USA
| | - James M Metz
- Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, PCAM-2 West, 3400 Civic Center Blvd., Philadelphia, PA, 19104, USA
| | - Edgar Ben-Josef
- Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, PCAM-2 West, 3400 Civic Center Blvd., Philadelphia, PA, 19104, USA
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Vergara N, Wu RI, Shroff S, McGrath CM. Cytology and histology: Complementary diagnostic modalities during endoscopic ultrasound-guided tissue acquisition. Techniques in Gastrointestinal Endoscopy 2018. [DOI: 10.1016/j.tgie.2017.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Venegas O, Newton A, Vergara N, Singhal S, Predina JD. Tracheal Glomus Tumor: A Case Report and Review of the Literature. Rare Tumors 2017; 9:6848. [PMID: 28458792 PMCID: PMC5379231 DOI: 10.4081/rt.2017.6848] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 12/20/2016] [Indexed: 12/18/2022] Open
Abstract
Glomus tumors are rare neoplasms that typically occur within the dermis or subcutis of the subungual space. Primary glomus tumors of the thorax are exceedingly uncommon, thus standard-of-care management is lacking. In this report we describe the management of a patient presenting with a symptomatic glomus tumor of the posterior trachea, and provide a comprehensive review including all documented tracheal glomus tumor reports.
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Affiliation(s)
- Ollin Venegas
- Division of Thoracic Surgery, Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Andrew Newton
- Division of Thoracic Surgery, Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Norge Vergara
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Sunil Singhal
- Division of Thoracic Surgery, Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Jarrod D Predina
- Division of Thoracic Surgery, Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
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Meykler S, Obstfeld A, Jhala N, Vergara N, Gupta PK. Pleural mass forming extramedullary hematopoiesis masquerading as a malignant neoplasm. Diagn Cytopathol 2015; 43:996-9. [PMID: 26303071 DOI: 10.1002/dc.23334] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 07/10/2015] [Accepted: 08/05/2015] [Indexed: 01/29/2023]
Abstract
Extramedullary hematopoiesis (EMH) represents the presence of immature hematopoietic elements and their differentiation into mature blood components outside of the medullary bone and may be seen in a variety of circumstances in the postnatal period, but is most strongly associated with disorders of the hematopoietic system. Postnatally, EMH is typically identified at sites of fetal hematopoiesis, the spleen, and liver, but occasional reports have identified it in nearly every tissue of the body. We report a case of EMH presenting as pleural mass, initially suspected to represent a neoplastic process in a patient with multiple comorbidities, including history of carcinoma, but without co-existing hematologic disorder. On-site evaluation of the fine-needle aspiration specimen was initially suspicious for a malignant neoplasm, but further evaluation revealed the lesion to be a mass forming focus of non-hepatosplenic EMH. In the era of increasing utilization of imaging, mass forming EMH is increasingly detected. When unsuspected, EMH may present a diagnostic challenge for the pathologist and may be confused for a neoplastic process.
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Affiliation(s)
- Simon Meykler
- Department of Pathology & Laboratory Medicine, Pennsylvania Hospital, University of Pennsylvania Health System, Philadelphia, Pennsylvania
| | - Amrom Obstfeld
- Department of Pathology & Laboratory Medicine, Pennsylvania Hospital, University of Pennsylvania Health System, Philadelphia, Pennsylvania
| | - Nirag Jhala
- Department of Pathology & Laboratory Medicine, Pennsylvania Hospital, University of Pennsylvania Health System, Philadelphia, Pennsylvania
| | - Norge Vergara
- Department of Pathology & Laboratory Medicine, Pennsylvania Hospital, University of Pennsylvania Health System, Philadelphia, Pennsylvania
| | - Prabodh K Gupta
- Department of Pathology & Laboratory Medicine, Pennsylvania Hospital, University of Pennsylvania Health System, Philadelphia, Pennsylvania
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Yu GH, Vergara N, Moore EM, King RL. Use of flow cytometry in the diagnosis of lymphoproliferative disorders in fluid specimens. Diagn Cytopathol 2014; 42:664-70. [DOI: 10.1002/dc.23106] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 10/30/2013] [Accepted: 01/09/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Gordon H. Yu
- Department of Pathology and Laboratory Medicine; Hospital of the University of Pennsylvania; Philadelphia Pennsylvania
| | - Norge Vergara
- Department of Pathology and Laboratory Medicine; Hospital of the University of Pennsylvania; Philadelphia Pennsylvania
| | - Erika M. Moore
- Department of Pathology and Laboratory Medicine; Hospital of the University of Pennsylvania; Philadelphia Pennsylvania
| | - Rebecca L. King
- Department of Pathology and Laboratory Medicine; Children's Hospital of Philadelphia; Philadelphia Pennsylvania
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Friedman MT, Vergara N. Informed consent for blood transfusion and the Joint Commission: the authors' reply. Am J Clin Pathol 2013; 139:693. [PMID: 23720869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
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Friedman M, Arja W, Batra R, Daniel S, Hoehn D, Paniz AM, Selegean S, Slova D, Srivastava S, Vergara N. Informed consent for blood transfusion: what do medicine residents tell? What do patients understand? Am J Clin Pathol 2012; 138:559-65. [PMID: 23010711 DOI: 10.1309/ajcp2tn5odjlygqr] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Blood transfusion is a common intervention in the hospital setting, and its benefits may not be clear but it has associated risks. Despite this, transfusion consent may not be obtained satisfactorily. We assessed transfusion consent effectiveness by comparing information given by residents with information understood by patients who receive transfusions. Medicine department residents who obtained consent were surveyed via telephone in conjunction with bedside surveys of adult inpatients who received transfusions. A total of 43 patient and 34 resident surveys were completed. Deficiencies in the transfusion consent process were noted. Discussed transfusion benefits (such as wound healing) were not always true benefits whereas some important risks (such as transfusion-related acute lung injury) were infrequently conferred. Risks were more often reported as "not discussed" than benefits. Only a few participants were aware of the hospital's Transfusion Health Guide, which provides information on transfusion benefits, risks, and alternatives.
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Affiliation(s)
- Mark Friedman
- Department of Pathology/Blood Bank, Critical Care and Sleep Medicine, St Luke's–Roosevelt Hospital Center, New York, NY
| | - Wajih Arja
- Department of Pulmonary, St Luke's–Roosevelt Hospital Center, New York, NY
| | - Rashmi Batra
- Department of Pathology/Blood Bank, Critical Care and Sleep Medicine, St Luke's–Roosevelt Hospital Center, New York, NY
| | - Sugganth Daniel
- Department of Pathology/Cytopathology, University of Michigan, Ann Arbor
| | - Daniela Hoehn
- Department of Hematopathology, University of Texas MD Anderson Cancer Center, Houston
| | | | - Sorin Selegean
- Department of Cytopathology, Mount Sinai Hospital Center, New York, NY
| | - Denisa Slova
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY
| | - Swati Srivastava
- Department of Hematopathology, Dartmouth-Hitchcock Medical Center, Lebanon, NH
| | - Norge Vergara
- Department of Pathology/Blood Bank, Critical Care and Sleep Medicine, St Luke's–Roosevelt Hospital Center, New York, NY
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Iturra P, Medrano JF, Bagley M, Lam N, Vergara N, Marin JC. Identification of sex chromosome molecular markers using RAPDs and fluorescent in situ hybridization in rainbow trout. Genetica 2005; 101:209-13. [PMID: 16220364 DOI: 10.1023/a:1018371623919] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The goal of this work is to identify molecular markers associated with the sex chromosomes in rainbow trout to study the mode of sex determination mechanisms in this species. Using the RAPD assay and bulked segregant analysis, two markers were identified that generated polymorphic bands amplifying preferentially in males of the Mount Lassen and Scottish strains of rainbow trout. Chromosomal localization using fluorescent in situ hybridization of a 900 bp probe developed from one of these markers revealed a brightly defined signal on a chromosome that could morphologically be classified as the Y chromosome.
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Affiliation(s)
- P Iturra
- Dept. de Biología Celular y Genética, Universidad de Chile, Independencia 1027, Santiago, Chile,
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Martínez-García MJ, Moreno JM, Moreno-Clavel J, Vergara N, García-Sánchez A, Guillamón A, Portí M, Moreno-Grau S. Heavy metals in human bones in different historical epochs. Sci Total Environ 2005; 348:51-72. [PMID: 16162313 DOI: 10.1016/j.scitotenv.2004.12.075] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/17/2004] [Indexed: 05/04/2023]
Abstract
The concentration of the metals lead, copper, zinc, cadmium and iron was determined in bone remains belonging to 30 individuals buried in the Region of Cartagena dating from different historical periods and in eight persons who had died in recent times. The metals content with respect to lead, cadmium and copper was determined either by anodic stripping voltammetry or by atomic absorption spectroscopy on the basis of the concentrations present in the bone remains. In all cases, zinc and iron were quantified by means of atomic absorption spectroscopy. The lead concentrations found in the bone remains in our city are greater than those reported in the literature for other locations. This led to the consideration of the sources of these metals in our area, both the contribution from atmospheric aerosols as well as that from the soil in the area. Correlation analysis leads us to consider the presence of the studied metals in the analysed bone samples to be the consequence of analogous inputs, namely the inhalation of atmospheric aerosols and diverse contributions in the diet. The lowest values found in the studied bone remains correspond to the Neolithic period, with similar contents to present-day samples with respect to lead, copper, cadmium and iron. As regards the evolution over time of the concentrations of the metals under study, a clear increase in these is observed between the Neolithic period and the grouping made up of the Bronze Age, Roman domination and the Byzantine period. The trend lines used to classify the samples into 7 periods show that the maximum values of lead correspond to the Roman and Byzantine periods. For copper, this peak is found in the Byzantine Period and for iron, in the Islamic Period. Zinc shows an increasing tendency over the periods under study and cadmium is the only metal whose trend lines shows a decreasing slope.
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MESH Headings
- Bone and Bones/chemistry
- Environmental Monitoring/history
- Environmental Pollutants/analysis
- Environmental Pollutants/history
- History, 15th Century
- History, 16th Century
- History, 17th Century
- History, 18th Century
- History, 19th Century
- History, 20th Century
- History, 21st Century
- History, Ancient
- History, Medieval
- Humans
- Metals, Heavy/analysis
- Metals, Heavy/history
- Spain
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Affiliation(s)
- M J Martínez-García
- Department of Chemical and Environmental Engineering, Technical University of Cartagena, Spain
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Iturra P, Lam N, de la Fuente M, Vergara N, Medrano JF. Characterization of sex chromosomes in rainbow trout and coho salmon using fluorescence in situ hybridization (FISH). Genetica 2002; 111:125-31. [PMID: 11841161 DOI: 10.1023/a:1013725717142] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
With the aim of characterizing the sex chromosomes of rainbow trout (Oncorhynchus mykiss) and to identify the sex chromosomes of coho salmon (O. kisutch), we used molecular markers OmyP9, 5S rDNA, and a growth hormone gene fragment (GH2), as FISH probes. Metaphase chromosomes were obtained from lymphocyte cultures from farm specimens of rainbow trout and coho salmon. Rainbow trout sex marker OmyP9 hybridizes on the sex chromosomes of rainbow trout, while in coho salmon, fluorescent signals were localized in the medial region of the long arm of one subtelocentric chromosome pair. This hybridization pattern together with the hybridization of a GH2 intron probe on a chromosome pair having the same morphology, suggests that a subtelocentric pair could be the sex chromosomes in this species. We confirm that in rainbow trout, one of the two loci for 5S rDNA genes is on the X chromosome. In males of this species that lack a heteromorphic sex pair (XX males), the 5S rDNA probe hybridized to both subtelocentrics. This finding is discussed in relation to the hypothesis of intraspecific polymorphism of sex chromosomes in rainbow trout.
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Affiliation(s)
- P Iturra
- Facultad de Medicina, Programa de Genética Humana, ICBM, Universidad de Chile, Casilla, Santiago.
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Iturra P, Bagley M, Vergara N, Imbert P, Medrano JF. Development and characterization of DNA sequence OmyP9 associated with the sex chromosomes in rainbow trout. Heredity (Edinb) 2001; 86:412-9. [PMID: 11520341 DOI: 10.1046/j.1365-2540.2001.00845.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This work describes the construction and characterization of a sequence characterized amplified DNA region (SCAR DNA), designated OmyP9, that was derived from a RAPD marker associated with the sex chromosomes in rainbow trout. A RsaI restriction fragment length polymorphism in OmyP9 identifies variants A, B and C. We found six OmyP9 variant phenotypes - A, B, C, AB, BC and ABC, in 186 individuals of seven different rainbow trout strains. The patterns of inheritance of OmyP9 in 139 fingerlings from 10 crosses of three strains of rainbow trout were studied. The males had a greater representation of the A variant (93.3%) suggesting an association with the Y chromosome. All male fingerlings analysed inherited the A variant from their male parents. These results support the hypothesis that OmyP9 is located on the sex chromosomes of rainbow trout, and that for the males studied the A variant is located on the Y chromosome in a region close to sex determinants and/or in a sector where the genetic recombination between X and Y is restricted. The present evidence also supports our previous hypothesis that OmyP9 is organized as a tandem repeated sequence in the sex chromosomes of rainbow trout. We feel that the OmyP9 RsaI marker can be used for sex identification in crosses where it is possible to determine the phenotype of the parents.
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Affiliation(s)
- P Iturra
- Facultad de Medicina, Programa de Genética Humana, ICBM, Universidad de Chile, Independencia 1027, Santiago, Chile.
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Vergara N, Iturra P, Aguirre. Multilocus DNA-fingerprinting using oligonucleotide probes (GATA)4 and (GGAT)4 in rainbow trout (Oncorhynchus mykiss). Genet Mol Biol 1998. [DOI: 10.1590/s1415-47571998000200011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Oligonucleotide probes (GATA)4 and (GGAT)4 for minisatellite loci produced DNA fingerprinting patterns which are unique in individual rainbow trout. These patterns can be used to monitor the efficiency of manipulation of production characters in gynogenetic individuals. The (GATA)4 probe produced highly individual patterns that differentiated individuals among gynogenetic offspring, and could be easily scored.
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Affiliation(s)
- N. Vergara
- Departamento de Biología Celular y Genética
| | - P. Iturra
- Departamento de Biología Celular y Genética
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Riquelme C, Toranzo AE, Barja JL, Vergara N, Araya R. Association of Aeromonas hydrophila and Vibrio alginolyticus with Larval Mortalities of Scallop (Argopecten purpuratus). J Invertebr Pathol 1996; 67:213-8. [PMID: 8812601 DOI: 10.1006/jipa.1996.0035] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A bacteriological study was carried out in a hatchery of Argopecten purpuratus located in northern Chile which had been affected by severe larval mortalities. The phenotypic characterization of the bacterial strains revealed that Vibrio alginolyticus was the predominant species isolated in the majority of samples taken from the different units of the hatchery (microalgae, swimming larvae, seawater of larval culture tanks, and a reservoir tank of 50-μm filtered seawater). However, the bacterial population of dying larvae was composed of only Aeromonas hydrophila strains which proved to be resistant to most of the chemotherapeutic agents tested. The bioassays conducted to evaluate the effect of these bacteria on larval survival showed that all of the isolated Vibrio and Aeromonas strains possessed a high degree of pathogenicity, since they produced dying larvae on concentrations ranging from 5.5 x 10(4) to 5.5 x 10(2) cells/ml. The possible virulence mechanism of these bacteria is discussed, as well as the potential use of drugs to prevent larval mortalities.
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Affiliation(s)
- C Riquelme
- Laboratorio de Microbiologia Marina, Universidad de Antofagasta, Antofagasta, Chile
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Retamal P, Vergara N, Báez M. [Neuroleptic malignant syndrome: 3 clinical cases]. Rev Med Chil 1988; 116:264-7. [PMID: 3244936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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