Bizarre adenomatoid tumor of testicular tunics

Black, William C.; Benitez, Roberto E.; Buesing, Oliver R.; Hojnoski, Waclaw

doi:10.1002/1097-0142(196411)17:11<1472::aid-cncr2820171115>3.0.co;2-d

Cited by 6 publications

(1 citation statement)

References 10 publications

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“…Rarely BSAM has been seen in association with highly cellular sheets of primitive cells resembling mesenchyme. 29 These primitive cells exhibit high mitotic activity and at the periphery show transition into typical BSAM. Despite the alarming histologic appearance of these cellular areas, no metastases have been observed in follow-up.…”

Section: Discussionmentioning

confidence: 99%

Benign Solid and Acinar Mesothelioma (Adenomatoid Tumor)

Delahunt¹,

Kenwright²

2005

Pathology Case Reviews

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Benign solid and acinar mesothelioma (BSAM)/adenomatoid tumor of the testis most frequently occurs in adulthood, being derived from the testicular tunics or adnexal structures. The tissue of origin for this tumor has been debated, although recent evidence, based upon ultrastructural and immunohistochemical findings, is indicative of its being a benign form of mesothelioma. BSAM has a variety of morphologic patterns, ranging from cords and sheets of cells (solid type) to acinar and cystic structures (acinar type), although one type usually predominates.The case presented is a 31-year-old male who noted an enlarging testicular mass. At operation a tumor was found adjacent to the lower pole of the epididymis, and on histologic examination, this was shown to be a solid-type BSAM. The variable morphology of BSAM predicates an extensive differentiated diagnosis, which includes benign and malignant tumors of stromal and epithelial origin. The lesion most likely to be confused with BSAM is histiocytoid (epithelioid) hemangioma, and immunohistochemistry, utilizing vascular markers, is necessary to facilitate a diagnosis. Other lesions in the differential diagnosis are yolk sac tumor, sclerosing seminoma, sclerosing Sertoli cell tumor, large cell calcifying Sertoli cell tumor, carcinoid, rete adenoma/adenocarcinoma, epididymal papillary cystadenoma/adenocarcinoma, malignant mesothelioma, metastatic carcinoma, and sclerosing lipogranuloma.

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Section: Discussionmentioning

confidence: 99%

Benign Solid and Acinar Mesothelioma (Adenomatoid Tumor)

Delahunt¹,

Kenwright²

2005

Pathology Case Reviews

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Ultrastructure and observations on the histogenesis of mesotheliomas “adenomatoid tumors” of the female genital tract

Salazar

Kanbour

Burgess

1972

Cancer

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The morphological characteristics of three mesotheliomas, the so‐called “ade‐nomatoid tumors” of the female genital organs, were studied by light and electron microscopy, in search of information on the histogenesis of these neoplasms. The histology and ultrastructure of normal peritoneal mesothelium of the urogenital region were also studied for comparative correlation. The observations made in this investigation strongly support the theory that these tumors are of mesothelial origin. It is then proposed that the term mesothelioma be encouraged to designate these benign neoplasms of the genital sphere.

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Tumoren der männlichen Geschlechtsorgane

Straub¹

1972

Tumoren Im Kindesalter

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Bizarre adenomatoid tumor of testicular tunics

Cited by 6 publications

References 10 publications

Benign Solid and Acinar Mesothelioma (Adenomatoid Tumor)

Benign Solid and Acinar Mesothelioma (Adenomatoid Tumor)

Ultrastructure and observations on the histogenesis of mesotheliomas “adenomatoid tumors” of the female genital tract

Tumoren der männlichen Geschlechtsorgane

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