1
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Im S, Yoo JM, Cho U. Well-Differentiated Papillary Mesothelial Tumor of the Scrotum with Suspicious Invasion. Diagnostics (Basel) 2024; 14:169. [PMID: 38248046 PMCID: PMC10814885 DOI: 10.3390/diagnostics14020169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/02/2024] [Accepted: 01/10/2024] [Indexed: 01/23/2024] Open
Abstract
Well-differentiated papillary mesothelial tumor (WDPMT) is a distinct form of mesothelioma with low malignant potential and is mostly found in the peritoneal cavity. It consists of mesothelial cells with papillary structure and bland cytology. We report a rare case of WDPMT with suspicious invasive foci in the tunica vaginalis. WDPMT with invasive foci is known to have a tendency for recurrence. Therefore, careful attention should be given to properly diagnosing and treating this rare entity.
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Affiliation(s)
- Soyoung Im
- Department of Pathology, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea;
| | - Je Mo Yoo
- Department of Urology, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea;
| | - Uiju Cho
- Department of Pathology, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea;
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2
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Kläger J, Oberndorfer F, Brunel C, Veser J, Compérat E. Well-differentiated Papillary Mesothelial Tumour of the Tunica Vaginalis Testis - A Rare Lesion, but one Pathologists Should Know About Two Patient Reports and a Review of the Literature. Int J Surg Pathol 2023; 31:1126-1131. [PMID: 36624609 DOI: 10.1177/10668969221129888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Besides malignant mesothelioma, benign mesothelial neoplasms do exist in the tunica vaginalis testis. However, histological criteria remain controversial, thus leading to diagnostic uncertainty and difficulty in their classification according to their biological behavior. In recent years, molecular markers have emerged that aid in the differentiation of benign and malignant mesothelial proliferations throughout the body. Here, we present two middle-aged men with well-differentiated papillary mesothelial tumors and a review of the literature. By now, more than a year after surgery, one patient showed no recurrence of disease after partial or complete orchiectomy without further treatment, for the second no information is available. In conclusion, well-differentiated papillary mesothelial tumors represent rare lesions in the tunica vaginalis testis, but one pathologists should know about to prevent unnecessary treatment and suffering of patients.
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Affiliation(s)
- Johannes Kläger
- Department of Pathology, Medical University Vienna, Vienna, Austria
| | | | - Cristophe Brunel
- Department of Histopathology, Central Institute, Sion, Switzerland
| | - Julian Veser
- Clinic for Urology, Medical University Vienna, Vienna, Austria
| | - Eva Compérat
- Department of Pathology, Medical University Vienna, Vienna, Austria
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3
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Charlaix Hidalgo AL, Roux A, Charissoux A, Mathonnet M, Descazeaud A, Durand Fontanier S, Taibi A. First Case of Abdominal and Tunica Vaginalis Multicystic Benign Mesothelioma: Management and Review of Literature. Indian J Surg Oncol 2023; 14:92-96. [PMID: 37359917 PMCID: PMC10284750 DOI: 10.1007/s13193-022-01693-6] [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: 06/23/2022] [Accepted: 12/22/2022] [Indexed: 01/05/2023] Open
Abstract
Multicystic benign mesothelioma is a rare tumor that affects the serosa. Most cases present with peritoneal lesions exclusively. Some identified risk factors are chronic abdominal inflammation, woman of childbearing age, and asbestos exposure. The symptomatology is not specific and can delay the diagnosis. There are no guidelines for the treatment of this pathology. We describe one male patient with abdominal and tunica vaginalis localizations of multicystic benign mesothelioma. The diagnosis was suspected on imaging and confirmed with histological examination. The treatment on an expert center was complete cytoreduction surgery and HIPEC, but the patient had two recurrences during the 2-year of follow-up. This is the first case of simultaneous rare localizations of multicystic benign mesothelioma. No new risk factors were identified. The case underlines the importance of regular examination of all serosa localizations.
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Affiliation(s)
| | - Alexia Roux
- Digestive Surgery Department, Dupuytren Limoges University Hospital, Limoges, France
| | - Aurelie Charissoux
- Pathology Department, Dupuytren Limoges University Hospital, Limoges, France
| | - Muriel Mathonnet
- Digestive Surgery Department, Dupuytren Limoges University Hospital, Limoges, France
| | - Aurelien Descazeaud
- Urology Surgery Department, Dupuytren Limoges University Hospital, Limoges, France
| | - Sylvaine Durand Fontanier
- Digestive Surgery Department, Dupuytren Limoges University Hospital, Limoges, France
- University Limoges, CNRS, XLIM, 7252, F-87000 Limoges, UMR France
| | - Abdelkader Taibi
- Digestive Surgery Department, Dupuytren Limoges University Hospital, Limoges, France
- University Limoges, CNRS, XLIM, 7252, F-87000 Limoges, UMR France
- Visceral Surgery Department, Limoges University Hospital, Limoges, France
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4
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Tristán Martín B, Sosa Rotundo G, López Brasal L, Alemany Benítez I. [Well differentiated papillary mesothelioma: description of three case reports and review of the literature]. REVISTA ESPANOLA DE PATOLOGIA : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE ANATOMIA PATOLOGICA Y DE LA SOCIEDAD ESPANOLA DE CITOLOGIA 2023; 56:69-72. [PMID: 36599602 DOI: 10.1016/j.patol.2021.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 04/21/2021] [Accepted: 05/17/2021] [Indexed: 01/31/2023]
Abstract
Well Differentiated Papillary Mesothelioma (MPBD) is a very rare neoplasm that mainly affects women of reproductive age. The most common location is the peritoneum and it is an incidental finding, with a generally favorable prognosis. We present three cases diagnosed incidentally, in the course of a surgical intervention of various causes, which presented as peritoneal exophytic lesions not detected in the pre-surgical imaging study. It is important to keep this entity in mind, to differentiate it from other neoplasms with an unfavorable prognosis and evolution, such as Malignant Mesothelioma or primary and metastatic carcinomas. Recent studies give the MPBD a specific immunohistochemical and molecular profile that allow a greater diagnostic precision of the entity.
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Affiliation(s)
- Belén Tristán Martín
- Unidad de Anatomía Patológica, Hospital Universitario Fundación Alcorcón, Madrid, España.
| | - Grevelyn Sosa Rotundo
- Unidad de Anatomía Patológica, Hospital Universitario Fundación Alcorcón, Madrid, España
| | - Laura López Brasal
- Unidad de Anatomía Patológica, Hospital Virgen de la Salud de Toledo, Toledo, España
| | - Isabel Alemany Benítez
- Unidad de Anatomía Patológica, Hospital Universitario Fundación Alcorcón, Madrid, España
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5
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Moch H, Amin MB, Berney DM, Compérat EM, Gill AJ, Hartmann A, Menon S, Raspollini MR, Rubin MA, Srigley JR, Hoon Tan P, Tickoo SK, Tsuzuki T, Turajlic S, Cree I, Netto GJ. The 2022 World Health Organization Classification of Tumours of the Urinary System and Male Genital Organs-Part A: Renal, Penile, and Testicular Tumours. Eur Urol 2022; 82:458-468. [PMID: 35853783 DOI: 10.1016/j.eururo.2022.06.016] [Citation(s) in RCA: 183] [Impact Index Per Article: 91.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 06/21/2022] [Indexed: 02/07/2023]
Abstract
The fifth edition of the World Health Organization (WHO) classification of urogenital tumours (WHO "Blue Book"), published in 2022, contains significant revisions. This review summarises the most relevant changes for renal, penile, and testicular tumours. In keeping with other volumes in the fifth edition series, the WHO classification of urogenital tumours follows a hierarchical classification and lists tumours by site, category, family, and type. The section "essential and desirable diagnostic criteria" included in the WHO fifth edition represents morphologic diagnostic criteria, combined with immunohistochemistry and relevant molecular tests. The global introduction of massive parallel sequencing will result in a diagnostic shift from morphology to molecular analyses. Therefore, a molecular-driven renal tumour classification has been introduced, taking recent discoveries in renal tumour genomics into account. Such novel molecularly defined epithelial renal tumours include SMARCB1-deficient medullary renal cell carcinoma (RCC), TFEB-altered RCC, Alk-rearranged RCC, and ELOC-mutated RCC. Eosinophilic solid and cystic RCC is a novel morphologically defined RCC entity. The diverse morphologic patterns of penile squamous cell carcinomas are grouped as human papillomavirus (HPV) associated and HPV independent, and there is an attempt to simplify the morphologic classification. A new chapter with tumours of the scrotum has been introduced. The main nomenclature of testicular tumours is retained, including the use of the term "germ cell neoplasia in situ" (GCNIS) for the preneoplastic lesion of most germ cell tumours and division from those not derived from GCNIS. Nomenclature changes include replacement of the term "primitive neuroectodermal tumour" by "embryonic neuroectodermal tumour" to separate these tumours clearly from Ewing sarcoma. The term "carcinoid" has been changed to "neuroendocrine tumour", with most examples in the testis now classified as "prepubertal type testicular neuroendocrine tumour".
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Affiliation(s)
- Holger Moch
- Department of Pathology and Molecular Pathology, University Hospital Zuerich and University of Zuerich, Zuerich, Switzerland.
| | - Mahul B Amin
- Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, Memphis, TN, USA; Department of Urology, USC Keck School of Medicine, Los Angeles, CA, USA
| | - Daniel M Berney
- Barts Cancer Institute, Queen Mary University of London, London, UK; Department of Cellular Pathology, Barts Health NHS Trust, London, UK
| | - Eva M Compérat
- Department of Pathology, Medical University of Vienna, General Hospital of Vienna, Vienna, Austria
| | - Anthony J Gill
- Sydney Medical School, University of Sydney, Sydney, Australia; NSW Health Pathology, Department of Anatomical Pathology and Pathology Group Kolling Institute of Medical Research Royal North Shore Hospital St Leonards, Sydney, Australia
| | - Arndt Hartmann
- Institute of Pathology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Santosh Menon
- Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - Maria R Raspollini
- Histopathology and Molecular Diagnostics, University Hospital Careggi, Florence, Italy
| | - Mark A Rubin
- Department for BioMedical Research (DBMR), Bern Center for Precision Medicine (BCPM), University of Bern and Inselspital, Bern, Switzerland
| | - John R Srigley
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Puay Hoon Tan
- Division of Pathology, Singapore General Hospital, Singapore
| | - Satish K Tickoo
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Toyonori Tsuzuki
- Department of Surgical Pathology, Aichi Medical University Hospital, Nagakut, Japan
| | - Samra Turajlic
- The Francis Crick Institute and The Royal Marsden NHS Foundation Trust, London, UK
| | - Ian Cree
- International Agency for Research on Cancer (IARC), World Health Organization, Lyon, France
| | - George J Netto
- Heersink School of Medicine, The University of Alabama at Birmingham, Birmingham, AL, USA
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6
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Berney DM, Cree I, Rao V, Moch H, Srigley JR, Tsuzuki T, Amin MB, Comperat EM, Hartmann A, Menon S, Netto GJ, Rubin MA, Turajlic S, Raspollini MR, Tickoo SK. An introduction to the WHO 5th edition 2022 classification of testicular tumours. Histopathology 2022; 81:459-466. [PMID: 35502823 PMCID: PMC9544657 DOI: 10.1111/his.14675] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/21/2022] [Accepted: 05/02/2022] [Indexed: 11/29/2022]
Abstract
The 5th edition of the World Health Organisation Blue Book was published recently and includes a comprehensive update on testicular tumours. This builds upon the work of the 4th edition, retaining its structure and main nomenclature, including the use of the term 'germ cell neoplasia in situ' (GCNIS) for the pre-invasive lesion of most germ cell tumours and division from those not derived from GCNIS. While there have been important developments in understanding the molecular underpinnings of testicular cancer, this updated classification paradigm and approach remains rooted in morphology. Nomenclature changes include replacement of the term 'primitive neuroectodermal tumour' by 'embryonic neuroectodermal tumour' based on the non-specificity of the former term and to separate these tumours clearly from Ewing sarcoma. Seminoma is placed in a germinoma family of tumours emphasising relation to those tumours at other sites. Criteria for the diagnosis of 'teratoma with somatic transformation' have been modified to not include variable field size assessments. The word 'carcinoid' has been changed to 'neuroendocrine tumour', with most examples in the testis now classified as 'prepubertal type testicular neuroendocrine tumour'. For sex cord-stromal tumours, the use of mitotic counts per high-power field has been changed to per mm2 for malignancy assessments, and the new entities, 'signet ring stromal tumour' and 'myoid gonadal stromal tumour', are defined. Well-differentiated papillary mesothelial tumour has now been defined as tumour type with a favourable prognosis. Sertoliform cystadenoma has been removed as an entity from testicular adnexal tumours and placed with Sertoli cell tumours.
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Affiliation(s)
- Daniel M Berney
- Department of Molecular OncologyBarts Cancer Institute, Barts and The London School of Medicine and Dentistry, QMUL and Barts Health NHS TrustLondonUK
| | - Ian Cree
- WHO Classification of Tumours GroupInternational Agency for Research on Cancer, World Health OrganizationLyonFrance
| | - Vishal Rao
- Basavatarakam Indo American Cancer Hospital and Research InstituteHyderabadIndia
| | - Holger Moch
- Department of Pathology and Molecular PathologyUniversity Hospital Zurich and University ZurichZurichSwitzerland
| | | | - Toyonori Tsuzuki
- Department of Surgical PathologyAichi Medical University, School of MedicineNagakuteJapan
| | - Mahul B Amin
- Department of Pathology and Laboratory MedicineThe University of Tennessee Health Sciences CenterMemphisTNUSA
- Department of UrologyUniversity of Southern California, Keck School of MedicineLos AngelesCAUSA
| | - Eva M Comperat
- Department of PathologyGeneral Hospital, Medical UniversityViennaAustria
- Department of Pathology Tenon HospitalSorbonne UniversityParisFrance
| | - Arndt Hartmann
- Institute of PathologyUniversity Hospital Erlangen, Friedrich‐Alexander UniversityErlangenGermany
| | - Santosh Menon
- Tata Memorial CentreHomi Bhabha National InstituteMumbaiIndia
| | - George J Netto
- University of Alabama at Birmingham, PathologyBirminghamALUSA
| | - Mark A Rubin
- University of Bern, Director of the Department for BioMedical ResearchBernSwitzerland
| | | | - Maria R Raspollini
- Histopathology and Molecular DiagnosticsUniversity Hospital CareggiFlorenceItaly
| | - Satish K Tickoo
- Memorial Sloan‐Kettering Cancer Center, PathologyNew YorkNYUSA
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7
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Kitahama K, Yoshiike S, Nagahama K, Ninomiya N, Okegawa T, Fukuhara H, Nabeshima K, Oka T, Shibahara J. Well-differentiated papillary mesothelial tumor presenting as an encysted hydrocele of the spermatic cord. Pathol Int 2022; 72:352-354. [PMID: 35472123 DOI: 10.1111/pin.13228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/10/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Keiichiro Kitahama
- Department of Pathology, Kyorin University School of Medicine, Tokyo, Japan
| | - Shinya Yoshiike
- Department of Pathology, Kyorin University School of Medicine, Tokyo, Japan
| | - Kiyotaka Nagahama
- Department of Pathology, Kyorin University School of Medicine, Tokyo, Japan
| | - Naoki Ninomiya
- Department of Urology, Kyorin University School of Medicine, Tokyo, Japan
| | - Takatsugu Okegawa
- Department of Urology, Kyorin University School of Medicine, Tokyo, Japan
| | - Hiroshi Fukuhara
- Department of Urology, Kyorin University School of Medicine, Tokyo, Japan
| | - Kazuki Nabeshima
- Department of Pathology, Fukuoka University School of Medicine, Fukuoka, Japan
| | - Teruaki Oka
- Department of Pathology, Fukujuji Hospital, Tokyo, Japan
| | - Junji Shibahara
- Department of Pathology, Kyorin University School of Medicine, Tokyo, Japan
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8
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Mesothelioma of the tunica vaginalis testis. Hum Pathol 2019; 92:48-58. [DOI: 10.1016/j.humpath.2019.07.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 11/22/2022]
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9
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Vimercati L, Cavone D, Delfino MC, De Maria L, Caputi A, Ferri GM, Serio G. Asbestos exposure and malignant mesothelioma of the tunica vaginalis testis: a systematic review and the experience of the Apulia (southern Italy) mesothelioma register. Environ Health 2019; 18:78. [PMID: 31470859 PMCID: PMC6717382 DOI: 10.1186/s12940-019-0512-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 08/05/2019] [Indexed: 06/02/2023]
Abstract
BACKGROUND Malignant mesothelioma of the tunica vaginalis testis (MMTVT) is a rare disease with a poor prognosis. The diagnosis and management of these lesions are often difficult for pathologists, surgeons, oncologists and occupational physicians. A preoperative diagnosis of malignancy is rarely made, and there is no established effective therapy except orchidectomy. METHODS A systematic literature review was conducted among the articles published in the English literature on primary MMTVT. Moreover four cases from the Apulia mesothelioma register are reported here. RESULTS Two hundred eighty-nine cases of MMTVT have been reported from 1943 to 2018. Overall asbestos exposure has been investigated only for 58% of all cases reported in this review, while in 41.8% this data are not available. Noteworthy is the fact that in many reports there is not an anamnestic reconstruction of any asbestos exposure. A history of direct occupational, environmental or familial asbestos exposure is found in 27.6% of the cases. The four cases from the Apulia mesothelioma register are all with ascertained occupational exposure to asbestos. CONCLUSIONS The true incidence of asbestos exposure in MMTVT is underestimated because of insufficient information reported in older literature. To establish a broad consensus on the causal relationship between asbestos and MMTVT in the scientific community its necessary to analyze the same variables in the epidemiological studies. In general it should be recommended that a positive history of exposure to asbestos or to asbestos-containing materials are at risk for the development of a MMTVT and should be monitored.
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Affiliation(s)
- Luigi Vimercati
- Interdisciplinary Department of Medicine (DIM), Unit of Occupational Medicine, Section Occupational Medicine. “B. Ramazzini”, University Aldo Moro of Bari Medical School, 11 G. Cesare Square, 70124 Bari, Italy
| | - Domenica Cavone
- Interdisciplinary Department of Medicine (DIM), Unit of Occupational Medicine, Section Occupational Medicine. “B. Ramazzini”, University Aldo Moro of Bari Medical School, 11 G. Cesare Square, 70124 Bari, Italy
| | - Maria Celeste Delfino
- Interdisciplinary Department of Medicine (DIM), Unit of Occupational Medicine, Section Occupational Medicine. “B. Ramazzini”, University Aldo Moro of Bari Medical School, 11 G. Cesare Square, 70124 Bari, Italy
| | - Luigi De Maria
- Interdisciplinary Department of Medicine (DIM), Unit of Occupational Medicine, Section Occupational Medicine. “B. Ramazzini”, University Aldo Moro of Bari Medical School, 11 G. Cesare Square, 70124 Bari, Italy
| | - Antonio Caputi
- Interdisciplinary Department of Medicine (DIM), Unit of Occupational Medicine, Section Occupational Medicine. “B. Ramazzini”, University Aldo Moro of Bari Medical School, 11 G. Cesare Square, 70124 Bari, Italy
| | - Giovanni Maria Ferri
- Interdisciplinary Department of Medicine (DIM), Unit of Occupational Medicine, Section Occupational Medicine. “B. Ramazzini”, University Aldo Moro of Bari Medical School, 11 G. Cesare Square, 70124 Bari, Italy
| | - Gabriella Serio
- Department of Emergency and Organ Transplantation (DETO), Pathology Division, University Aldo Moro of Bari Medical School, 11 G. Cesare Square, 70124 Bari, Italy
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10
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Rebecca C, Connor MJ, Sun L, Johnston T, Gooch R, McLoughlin J. Mesothelioma subtypes of the tunica vaginalis: a rare case report and review of histological criteria. J Surg Case Rep 2019; 2019:rjz040. [PMID: 30886690 PMCID: PMC6413374 DOI: 10.1093/jscr/rjz040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 02/03/2019] [Indexed: 01/02/2023] Open
Abstract
Well-differentiated papillary mesothelioma (WDPM) is a rare histological subtype of mesothelioma arising from the tunica vaginalis. We present a case of a 23-year-old male with a palpable para-testicular lump of 3 years duration. Scrotal exploration revealed a grossly abnormal cystic appearance of his tunica vaginalis. An excision biopsy confirmed WDPM of the tunica vaginalis. The three subtypes of mesothelial tumours of the tunica vaginalis are described by their distinct histological features, tumour growth and reported prognosis. A summary of immunohistochemistry and the surgical management across the disease spectrum is provided. Recent clarification of the histological criteria of WDPM provides the opportunity for surgeons to offer a limited approach to managing this indolent tumour that mimics malignant mesothelioma. However, the lack of evidence on recurrence and progression rates in WDPM restricts most surgeons to performing a radical orchidectomy, as was performed in this case.
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Affiliation(s)
- Cutts Rebecca
- Urology Department, West Suffolk NHS Foundation Trust, Bury St. Edmunds, UK
| | - Martin J Connor
- Department of Urological Surgery and Cancer, Imperial College London, London, UK
| | - Luxi Sun
- Urology Department, West Suffolk NHS Foundation Trust, Bury St. Edmunds, UK
| | - Thomas Johnston
- Urology Department, West Suffolk NHS Foundation Trust, Bury St. Edmunds, UK
| | - Rachel Gooch
- Pathology Department, West Suffolk NHS Foundation Trust, Bury St. Edmunds, UK
| | - John McLoughlin
- Urology Department, West Suffolk NHS Foundation Trust, Bury St. Edmunds, UK
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11
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Gan AML, Plantinga P, Punjani N, Hussey A, Power N. Images - Well-differentiated papillary mesothelioma of the tunica vaginalis. Can Urol Assoc J 2018; 12:E425-E427. [PMID: 29787369 DOI: 10.5489/cuaj.4940] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Well-differentiated papillary mesothelioma (WDPM) is a rare mesothelial tumour occurring in the tunica vaginalis of the testicle. The pathological classification of paratesticular mesothelial tumours is controversial and continues to evolve in the literature. Diagnostic criteria of one subtype, WDPM, are histological and include the following: 1) papillary or tubular-papillary architecture; 2) bland nuclear cytology; 3) low mitotic activity; 4) lined by a single row of cuboidal cells; and 5) absence of stromal invasion.1,2 This report presents issues of diagnosis of this rare pathology with imaging from an example case.
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Affiliation(s)
- Ailsa May Li Gan
- Schulich School of Medicine and Dentistry, Western University, London, ON
| | - Paul Plantinga
- Department of Pathology and Laboratory Medicine, London Health Sciences Centre, London, ON
| | - Nahid Punjani
- Division of Urology, Department of Surgery, Western University, London, ON
| | | | - Nicholas Power
- Schulich School of Medicine and Dentistry, Western University, London, ON.,Division of Urology, Department of Surgery, Western University, London, ON
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12
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Two Case Reports of Benign Testicular Mesothelioma and Review of the Literature. Case Rep Oncol Med 2017; 2017:5419635. [PMID: 28168071 PMCID: PMC5266849 DOI: 10.1155/2017/5419635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 11/08/2016] [Accepted: 12/13/2016] [Indexed: 11/17/2022] Open
Abstract
Mesothelioma is usually diagnosed in people over the age of 50 with large history of asbestos-related exposure. It is frequently located in pleural cavity, peritoneum, and pericardium. At the testicles the mesothelioma had been reported first in 1957 like a malignant non-germ-cells tumor. The objective is to present two case reports of benign testicular mesothelioma and review of the literature.
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