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Möller K, Jenssen C, Braden B, Hocke M, Yamashita Y, Arcidiacono PG, Ignee A, D'Onofrio M, Fusaroli P, Bhutani MS, Dong Y, Sun S, Faiss S, Dietrich CF. Comments on and Illustrations of the EFSUMB CEUS Guidelines: Transabdominal and Endoscopic Ultrasound Features of Intrapancreatic Metastases and the Role of Multiparametric Imaging and EUS-Guided Sampling in Rare Pancreatic Tumors. Cancers (Basel) 2023; 15:cancers15092546. [PMID: 37174015 PMCID: PMC10177255 DOI: 10.3390/cancers15092546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/23/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
A definite pathologic diagnosis of intrapancreatic metastasis is crucial for the management decision, i.e., curative or palliative surgery versus chemotherapy or conservative/palliative therapy. This review focuses on the appearance of intrapancreatic metastases on native and contrast-enhanced transabdominal ultrasound and endoscopic ultrasound. Differences and similarities in relation to the primary tumor, and the differential diagnosis from pancreatic carcinoma and neuroendocrine neoplasms are described. The frequency of intrapancreatic metastases in autopsy studies and surgical resection studies will be discussed. Further emphasis is placed on endoscopic ultrasound-guided sampling to confirm the diagnosis.
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Affiliation(s)
- Kathleen Möller
- Medical Department I/Gastroenterology, Sana Hospital Lichtenberg, 10365 Berlin, Germany
| | - Christian Jenssen
- Department of Internal Medicine, Krankenhaus Märkisch-Oderland, 15344 Strausberg, Germany
- Brandenburg Institute for Clinical Ultrasound (BICUS), Medical University Brandenburg, 16816 Neuruppin, Germany
| | - Barbara Braden
- Translational Gastroenterology Unit, Oxford University Hospitals, OX3 9DU Oxford, UK
| | - Michael Hocke
- Medical Department, Helios Klinikum Meiningen, 98617 Meiningen, Germany
| | - Yasunobu Yamashita
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama City 641-8509, Japan
| | - Paolo Giorgio Arcidiacono
- Division of Pancreatobiliary Endoscopy and Endosonography, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - André Ignee
- Medical Clinic-Department for Gastroenterology and Rheumatology, Klinikum Wuerzburg Mitte, 97070 Wuerzburg, Germany
| | - Mirko D'Onofrio
- Department of Radiology, GB Rossi University Hospital, University of Verona, 37129 Verona, Italy
| | - Pietro Fusaroli
- Department of Medical and Surgical Sciences, Gastrointestinal Unit, University of Bologna/Hospital of Imola, 40126 Bologna, Italy
| | - Manoop S Bhutani
- Department of Gastroenterology Hepatology and Nutrition, UTMD Anderson Cancer Center, Houston, TX 77030-4009, USA
| | - Yi Dong
- Department of Ultrasound, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Siyu Sun
- Department of Endoscopy Center, Shengjing Hospital of China Medical University, Shenyang 110022, China
| | - Siegbert Faiss
- Medical Department I/Gastroenterology, Sana Hospital Lichtenberg, 10365 Berlin, Germany
| | - Christoph F Dietrich
- Department Allgemeine Innere Medizin der Kliniken (DAIM) Hirslanden Beau Site, Salem und Permanence, 3013 Bern, Switzerland
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2
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Abdominal metastases from Merkel cell carcinoma: Prevalence and presentation on CT examination in 111 patients. Diagn Interv Imaging 2021; 103:41-48. [PMID: 34465553 DOI: 10.1016/j.diii.2021.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/04/2021] [Accepted: 08/06/2021] [Indexed: 12/15/2022]
Abstract
PURPOSE The purpose of this study was to report the prevalence and imaging features of abdominal metastases from Merkel cell carcinoma (MCC) on computed tomography (CT) examinations. MATERIALS AND METHODS A total of 111 patients with MCC from two institutions were initially identified. Of these, 27 patients (27/111; 24.3%) had abdominal metastases from MCC present on CT examination. There were 19 men and 8 women with a mean age of 75 ± 10.8 (SD) years (age range: 46-92 years). CT examinations were retrospectively reviewed by two radiologists and analyzed quantitatively for the number and dimensions of abdominal metastases from MCC and qualitatively in terms of location, margins, contours, homogeneity, patterns of enhancement, vascular involvement and extension of metastases from MCC. RESULTS Fifteen patients (15/27; 56%) had abdominal metastatic disease at initial diagnosis and twelve (12/27; 44%) developed abdominal metastases during the course of the disease. The mean number of locations of abdominal metastases was 2.1 ± 1.12 (SD) (range: 1-5). Abdominal metastases involved abdominal lymph nodes (16/27; 59%), adrenal glands/kidneys/retroperitoneum (14/27; 52%), mesentery/peritoneum (13/27; 48%), liver (7/27; 26%) and pancreas (7/27; 26%). Vascular involvement was found in association with peritoneal/mesenteric metastases in 6/13 (46%) patients with intraperitoneal metastases or in association with abdominal lymph nodes in 4/16 (25%) patients. Ureteral encasement and/or dilatation was found in 4/14 (28%) patients with retroperitoneal metastases and 3/16 (19%) patients with abdominal lymph nodes. Metastases to the liver, pancreas, peritoneum, retroperitoneum and adrenal glands displayed internal enhancement during the arterial phase in 1/2 (50%), 4/5 (80%), 4/7 (57%) and 5/8 (62%) patients for whom arterial phase was available, respectively. CONCLUSION Metastases from MCC have a prevalence of 24.3% on CT examination and may involve a variety of abdominal organs, mainly lymph nodes, peritoneal and retroperitoneal structures, but also the liver and pancreas. CT features of abdominal metastases from MCC include hypervascularity during the arterial phase of enhancement and eventually vascular and ureteral involvement.
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3
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Lingamaneni P, Laswi H, Krbanjevic A, Moturi K, Katiyar V, Gupta S. Merkel Cell Carcinoma With Isolated Pancreatic Metastasis. J Investig Med High Impact Case Rep 2021; 9:23247096211027413. [PMID: 34159821 PMCID: PMC8236778 DOI: 10.1177/23247096211027413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Merkel cell carcinoma (MCC) is a highly aggressive cutaneous neuroendocrine carcinoma, frequently associated with distant metastasis. However, recurrence of MCC manifesting with only pancreatic involvement is exceedingly rare. A 53-year-old man presented to our institution with abdominal discomfort 3 months after initial resection of chest wall MCC. Imaging revealed lesions in the pancreas and peripancreatic lymph nodes. Pathology obtained through endoscopic ultrasound confirmed recurrence of MCC. He underwent chemotherapy with cisplatin and etoposide, resulting in a complete resolution of the pancreatic lesions. Unfortunately, he passed away from sudden cardiac arrest while being in remission from MCC. Immunohistochemistry is crucial in differentiating MCC from primary pancreatic glandular and neuroendocrine tumors. While there are no definitive guidelines in the management of pancreatic lesions associated with MCC, checkpoint inhibitor immunotherapy is increasingly being used.
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Affiliation(s)
| | - Hisham Laswi
- John H. Stroger Hospital of Cook County, Chicago, IL, USA
| | | | - Krishna Moturi
- John H. Stroger Hospital of Cook County, Chicago, IL, USA
| | | | - Shweta Gupta
- John H. Stroger Hospital of Cook County, Chicago, IL, USA
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4
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A Rare Case of Metastatic Merkel Cell Carcinoma to the Stomach and Pancreas Presenting With Upper Gastrointestinal Bleeding and Obstructive Jaundice. ACG Case Rep J 2021; 8:e00523. [PMID: 33521158 PMCID: PMC7843122 DOI: 10.14309/crj.0000000000000523] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 09/04/2020] [Indexed: 01/11/2023] Open
Abstract
Merkel cell carcinoma (MCC) is a rare and aggressive primary neuroendocrine tumor of the skin. Gastrointestinal (GI) metastasis in MCC is uncommon. We present a case of MCC with metastasis to the stomach, duodenum, and pancreas presenting with melena and obstructive jaundice. A large, bleeding metastatic mass was identified in the duodenum. Hemostasis was achieved with coil embolization. Endoscopic retrograde cholangiopancreatography with stenting of the common bile duct was performed to relieve the obstruction. Close surveillance with positron emission tomography/computed tomography scan and possible GI endoscopy should be performed in cases with distant metastasis to identify and treat early GI tract lesions.
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5
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Merkel Cell Carcinoma and Diagnostic Experience in a Reference Hospital: A Case Series. Case Rep Med 2020; 2020:8391510. [PMID: 32148513 PMCID: PMC7049825 DOI: 10.1155/2020/8391510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 01/03/2020] [Accepted: 01/16/2020] [Indexed: 11/17/2022] Open
Abstract
Merkel cell carcinoma (MCC) is a rare poorly differentiated neuroendocrine tumor, usually located in sun-exposed skin, with aggressive behavior and with high recurrence risk and metastatic disease. In Latin America, case series have been published, and it does not exceed 32 patients in 10 years, and in Colombia, there are case reports. We present a descriptive retrospective cross-sectional study in patients diagnosed with MCC in the Department of Pathology and Laboratories at the University Hospital Fundación Santa Fe de Bogotá(FSFB) between January 2003 and December 2018. We present the demographic, clinical, and pathological variables of these patients, as well as a literature review.
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6
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Ioakim KJ, Sydney GI, Michaelides C, Sepsa A, Psarras K, Tsiotos GG, Salla C, Nikas IP. Evaluation of metastases to the pancreas with fine needle aspiration: A case series from a single centre with review of the literature. Cytopathology 2019; 31:96-105. [PMID: 31788890 DOI: 10.1111/cyt.12793] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 10/25/2019] [Accepted: 11/28/2019] [Indexed: 12/29/2022]
Abstract
OBJECTIVE Fine needle aspiration (FNA) is a minimally invasive albeit highly effective modality used to detect solid and cystic pancreatic lesions. This manuscript aims to present our experience in diagnosing metastases to the pancreas and highlight the importance of immunocytochemistry in the diagnostic process. It also aims to provide a brief review of the literature on this topic. METHODS We retrospectively searched our archives for cases of metastatic deposits to the pancreas diagnosed with FNA over a 5-year period. We also reviewed the literature for such cases. RESULTS We describe seven cases from our archives that metastasised to the pancreas. Three of them (43%) represented metastatic renal cell carcinoma while the rest four comprised deposits from a lung adenocarcinoma, a colon adenocarcinoma, an adrenal leiomyosarcoma, and a small cell carcinoma of the urinary bladder, respectively. History of primary malignancy was available for all seven patients. All diagnoses were confirmed with the use of immunostains. In our literature review, similar to our case series, renal cell carcinoma was the most common metastasis to the pancreas managed with FNA (around one out of three patients; 35%). Of interest, our endoscopic ultrasound-FNA case of pancreatic metastasis from urinary bladder small cell carcinoma is the first reported. CONCLUSIONS As metastases to the pancreas are commonly accompanied by diverse prognostic signatures and management strategies compared to primary pancreatic malignancies, their accurate identification is imperative. Pancreatic FNA is a diagnostic modality that can confirm or exclude metastasis to the organ, especially when immunocytochemistry is applied.
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Affiliation(s)
| | - Guy I Sydney
- School of Medicine, European University Cyprus, Nicosia, Cyprus
| | - Constantinos Michaelides
- School of Medicine, European University Cyprus, Nicosia, Cyprus.,First Department of Pathology, Faculty of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Athanasia Sepsa
- First Department of Pathology, Faculty of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | | | | | - Charitini Salla
- Department of Cytopathology, Hygeia & Mitera Hospital, Athens, Greece
| | - Ilias P Nikas
- School of Medicine, European University Cyprus, Nicosia, Cyprus
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7
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Primary Visceral Merkel Cell Carcinoma: A Case Report and Review of the Literature. Am J Dermatopathol 2018; 40:927-929. [DOI: 10.1097/dad.0000000000001194] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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8
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Pinho J, Montezuma D, Monteiro P, Dinis-Ribeiro M, Bastos P. Endoscopic ultrasound diagnosis of Merkel cell carcinoma metastasising to pancreas. Cytopathology 2018; 29:478-481. [PMID: 29665210 DOI: 10.1111/cyt.12553] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2018] [Indexed: 11/28/2022]
Affiliation(s)
- J Pinho
- Gastroenterology Department, Centro Hospitalar Tondela-Viseu, Viseu, Portugal
| | - D Montezuma
- Pathology Department, Instituto Português de Oncologia do Porto, Porto, Portugal
| | - P Monteiro
- Pathology Department, Instituto Português de Oncologia do Porto, Porto, Portugal
| | - M Dinis-Ribeiro
- Gastroenterology Department, Instituto Português de Oncologia do Porto, Porto, Portugal
| | - P Bastos
- Gastroenterology Department, Instituto Português de Oncologia do Porto, Porto, Portugal
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9
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Li L, Molberg K, Cheedella N, Thibodeaux J, Hinson S, Lucas E. The diagnostic utility of Merkel cell polyomavirus immunohistochemistry in a fine needle aspirate of metastatic Merkel cell carcinoma of unknown primary to the pancreas. Diagn Cytopathol 2017; 46:67-71. [PMID: 28802095 DOI: 10.1002/dc.23794] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 07/17/2017] [Accepted: 07/25/2017] [Indexed: 12/22/2022]
Abstract
Merkel cell carcinoma (MCC) is an aggressive skin tumor with a high tendency for metastases. We report a case of MCC initially presenting as axillary and pancreatic metastases. A 33-year-old HIV-positive Hispanic male presented with a history of a rapidly growing axillary mass. A needle core biopsy demonstrated an epithelioid neoplasm composed of small to medium-sized cells with high nuclear-cytoplasmic ratio, nuclear molding, and frequent mitotic figures. A subsequent PET scan revealed a 1.5 cm FDG avid mass in the pancreas. Endoscopic ultrasound-guided FNA of the pancreatic mass showed neoplastic cells with similar morphology to those of the axillary mass. The tumor cells were positive with pancytokeratin AE1/AE3, CK20, CD56, synatophysin, chromogranin, and Merkel cell polyomavirus (MCPyV). This case of MCC most likely originated from a resolved primary skin lesion drained by the involved axillary lymph node with subsequent metastases to the pancreas and distant lymph nodes.
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Affiliation(s)
- Long Li
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, 75390
| | - Kyle Molberg
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, 75390
| | - Naga Cheedella
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, 75390
| | - Joel Thibodeaux
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, 75390
| | - Stacy Hinson
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, 75390
| | - Elena Lucas
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, 75390
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10
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Stoos-Veic T, Tadic M, Aralica G, Milicic V, Tomasovic-Loncaric C. EUS-FNA of the Merkel cell carcinoma metastasis to the pancreas: Cytomorphology and immunocytochemistry on direct cytological smears. Cytopathology 2017; 28:307-311. [PMID: 28685876 DOI: 10.1111/cyt.12425] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2017] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To report two cases of Merkel cell carcinoma (MCC) metastatic to the pancreas diagnosed with endoscopic ultrasound-guided-fine needle aspiration (EUS-FNA) and to add the case of concomitant chronic lymphocytic leukaemia/small lymphocytic lymphoma (CLL/SLL) and MCC to the literature. The aim is to alert the cytopathologists once more to the problems of differential diagnosis of pancreatic metastasis of MCC and to describe the possibilities of ancillary methods performed on direct cytological smears. METHODS EUS-FNA procedures were performed according to standard institution protocol, using 22-G needles with cytopathologist on-site. Based on rapid on-site evaluation (ROSE), additional passes were made for immunocytochemistry (ICC). A mini panel of antibodies was used to aid the differential diagnosis. RESULTS Smears revealed a dispersed pattern of small round cells with scant cytoplasm, round nuclei with inconspicuous nucleoli and occasional nuclear moulding, suspicious of small cell carcinoma. Results of ICC applied to the direct cytological smears were as follows: LCA negative, Cytokeratin (clone MNF116) positive, TTF-1 negative, CD 56 positive, NSE weakly positive, Chromogranin A weakly positive and CK20 positive, in one case in a dot-like perinuclear pattern. The diagnosis of MCC was made. CONCLUSION Increasing incidence of MCC warrants the inclusion of MCC in the differential diagnosis of tumours of small round blue cell morphology even in unusual sites. The cytomorphological features coupled with an ICC panel are usually enough to make a confident diagnosis of MCC. EUS-FNA is a minimally invasive technique which enables sampling adequate tissue for all the ancillary methods eventually needed to support the diagnosis.
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Affiliation(s)
- T Stoos-Veic
- Department of Pathology and Cytology, University Hospital Dubrava, Zagreb, Croatia.,Faculty of Medicine, University of Osijek, Osijek, Croatia
| | - M Tadic
- Department of Gastroenterology, University Hospital Dubrava, Zagreb, Croatia.,Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
| | - G Aralica
- Department of Pathology and Cytology, University Hospital Dubrava, Zagreb, Croatia.,School of Medicine, University of Zagreb, Zagreb, Croatia
| | - V Milicic
- Department of Cytology, University Hospital Center Osijek, Osijek, Croatia.,Faculty of Medicine, University of Osijek, Osijek, Croatia
| | - C Tomasovic-Loncaric
- Department of Pathology and Cytology, University Hospital Dubrava, Zagreb, Croatia
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11
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Raymond SLT, Yugawa D, Chang KHF, Ena B, Tauchi-Nishi PS. Metastatic neoplasms to the pancreas diagnosed by fine-needle aspiration/biopsy cytology: A 15-year retrospective analysis. Diagn Cytopathol 2017; 45:771-783. [PMID: 28603895 DOI: 10.1002/dc.23752] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 04/15/2017] [Accepted: 05/08/2017] [Indexed: 01/07/2023]
Abstract
BACKGROUND Metastatic tumors to the pancreas are rarely encountered and diagnostically challenging. We aspired to determine the incidence and origin of all metastases to the pancreas at our institution, and to examine their clinicopathologic and cytomorphologic features. We also sought to ascertain the effect of endoscopic ultrasound (EUS) guidance implementation. METHODS A search of our database was undertaken to review all pancreatic FNA and/or CNB examined from January 2000 through December 2014. RESULTS During our 15-year study, 636 patients underwent pancreatic FNA/CNB, including 252 (40%) computerized tomography (CT) and 384 (60%) EUS-guided biopsies. Malignancy was diagnosed in 221 (35%). Only 16 had metastases to the pancreas, comprising 2.5% of pancreatic biopsies and 7.2% of malignancies. Three (18.8%) presented with their first manifestation of cancer. EUS guidance was utilized in 50%, with rapid on-site evaluation (ROSE) employed in 14 (88%). The most common primary site was lung (6,38%), followed by 3 (19%) each of renal and gastrointestinal malignancies. The remaining included malignant melanoma, Merkel and gallbladder small cell carcinomas, and olfactory neuroblastoma. CONCLUSION Cytologic diagnosis of metastasis to the pancreas is rare in our institution, comprising only 2.5% and 7.2% of total and malignant pancreatic FNA/CNB, respectively. FNA/CNB with ROSE proved to be an effective diagnostic modality, thereby obviating the need for more invasive procedures in the setting of pancreatic metastases. EUS-FNA was equally effective as CT-guided biopsies in achieving specimen adequacy and definitive diagnoses. We also present the first known case of a metastatic olfactory neuroblastoma to the pancreas diagnosed by imprint cytology.
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Affiliation(s)
- Sasha L T Raymond
- Department of Pathology, University of Hawaii, c/o The Queen's Medical Center, University of Hawaii Tower, Honolulu, Hawaii, 96813
| | - Deanne Yugawa
- Department of Pathology, The Queen's Medical Center, Honolulu, Hawaii, 96813
| | - Karen H F Chang
- Department of Pathology, The Queen's Medical Center, Honolulu, Hawaii, 96813
| | - Brandy Ena
- Department of Pathology, The Queen's Medical Center, Honolulu, Hawaii, 96813
| | - Pamela S Tauchi-Nishi
- Department of Pathology, University of Hawaii, c/o The Queen's Medical Center, University of Hawaii Tower, Honolulu, Hawaii, 96813.,Department of Pathology, The Queen's Medical Center, Honolulu, Hawaii, 96813
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12
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Hulstaert E, Smith V, Mielants H, Van Praet L, De Kock J, Lambrecht V, Rasschaert G, Van Belle S. Rapidly growing gastric metastasis of Merkel cell carcinoma, an unusual cause of melena. Acta Clin Belg 2016; 71:263-6. [PMID: 27075789 DOI: 10.1080/17843286.2015.1105612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Merkel cell carcinoma (MCC) is an uncommon, highly aggressive neuroendocrine skin carcinoma that has a tendency for local recurrence and metastatic disease. We report a rare case of recurrent melena in a 77-year-old Caucasian male. Three years earlier, the patient had undergone a radical resection of a para-umbilical MCC. A repeat esophagogastroduodenoscopy proved necessary to identify rapidly proliferating gastric metastasis of MCC as the cause of bleeding.
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13
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Duncan JR, Carr D, Kaffenberger BH. The utility of positron emission tomography with and without computed tomography in patients with nonmelanoma skin cancer. J Am Acad Dermatol 2016; 75:186-96. [PMID: 26992283 DOI: 10.1016/j.jaad.2016.01.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 01/16/2016] [Accepted: 01/20/2016] [Indexed: 10/22/2022]
Abstract
Combined positron emission tomography (PET) and computed tomography (CT) scans are widely used in the staging and monitoring of most malignancies. The differential for PET-positive cutaneous lesions includes primary skin cancers, infections, cutaneous metastases from distant malignancies, and benign neoplasms. In dermatology, PET/CT scans have been most widely studied in patients with melanoma and Merkel cell carcinoma. The role of PET/CT scans in the management of other cutaneous malignancies is less clear, but it has shown great promise in the management of patients with squamous cell carcinoma and cutaneous lymphoma. This review seeks to address the usefulness of PET/CT scans in nonmelanoma skin cancer and to provide guidance regarding the management of patients with incidental PET-positive nodules. Currently, there is limited experience with PET/CT scans for staging and monitoring of non-head and neck metastatic basal cell and squamous cell carcinomas, and results show limited sensitivity and specificity. We also address the evidence for management of an incidental PET-positive cutaneous nodule and recommend obtaining a biopsy specimen in patients with a known noncutaneous malignancy, a history of primary skin cancer, or a high risk of either cutaneous or noncutaneous malignancy.
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Affiliation(s)
| | - David Carr
- Division of Dermatology, Wexner Medical Center at Ohio State University, Ghanna, Ohio
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14
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Cipolletta Campanile A, Malzone MG, Sanna V, Barizzi J, Manna A, Gioioso A, De Chiara A, Fulciniti F. Cytological and Immunocytochemical Features of Merkel Cell Carcinoma on Fine Needle Cytology Samples: A Study of 22 Cases. Endocr Pathol 2015; 26:243-9. [PMID: 25982258 DOI: 10.1007/s12022-015-9375-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Merkel cell carcinoma (MCC) is an uncommon neuroendocrine small cell tumor derived from the transformation of the homonymous cells in the basal layer of the epidermis. MCC has a generally aggressive course, with a high tendency for local recurrence, lymph node involvement, and distant metastasis. Fine needle cytology (FNC) and immunocytochemistry were used as diagnostic procedures for 22 cases of MCC presented at our institute. All cases of MCC were successfully diagnosed on FNC. Among all of the monoclonal antisera used (CD56, CK20, CK MNF116, neuron-specific enolase (NSE), synaptophysin, and chromogranin), NSE and CD56 showed the highest frequency of positivity. The accuracy of the cytological diagnosis was 100% compared to the corresponding previous or subsequent pathological diagnoses. FNC and immunocytochemistry represent excellent and accurate diagnostic methods to distinguish MCC from other small-cell malignant entities.
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Affiliation(s)
- Anna Cipolletta Campanile
- S.S.D. di Citopatologia e S.C. di Anatomia Patologica, Istituto Nazionale Tumori "Fondazione G. Pascale", via Mariano Semmola, 80131, Napoli, Italy
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15
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García García de Paredes A, Tavío Hernández E, Foruny Olcina JR, Montans Araujo J, Boixeda de Miquel D, Albillos Martínez A. [Pancreatic metastasis from a Merkel cell carcinoma diagnosed by ultrasound-guided biopsy]. GASTROENTEROLOGIA Y HEPATOLOGIA 2015; 39:395-7. [PMID: 26183234 DOI: 10.1016/j.gastrohep.2015.05.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 05/24/2015] [Accepted: 05/27/2015] [Indexed: 11/26/2022]
Affiliation(s)
| | - Eduardo Tavío Hernández
- Servicio de Gastroenterología y Hepatología, Hospital Universitario Ramón y Cajal, Madrid, España
| | - Jose Ramón Foruny Olcina
- Servicio de Gastroenterología y Hepatología, Hospital Universitario Ramón y Cajal, Madrid, España
| | - Jose Montans Araujo
- Servicio de Anatomía Patológica, Hospital Universitario Ramón y Cajal, Madrid, España
| | - Daniel Boixeda de Miquel
- Servicio de Gastroenterología y Hepatología, Hospital Universitario Ramón y Cajal, Madrid, España
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