1/8. Diffuse fibrous proliferation of tunica vaginalis associated with testicular infarction: a case report.Fibrous pseudotumor of the tunica vaginalis testis is an uncommon lesion of unknown pathogenesis. Although this reactive process of testicular tunics is benign, this usually is diagnosed after radical orchiectomy. The authors describe a case of fibrous pseudotumor of the tunica vaginalis testis associated with testicular infarction. To our knowledge, this is the first case presented with similar association, second case consisting predominantly of myofibroblasts and the fourth reported case encountered in childhood.- - - - - - - - - - ranking = 1keywords = tunica (Clic here for more details about this article) |
2/8. Benign fibrous tumor of the tunica vaginalis testis. Report of a case with light, electron microscopic, and immunocytochemical study, and review of the literature.Benign fibrous tumor of the tunica vaginalis testis is an uncommon lesion of unknown pathogenesis and histogenesis, frequently described as fibrous pseudotumor. We describe a case of a fibrous tumor of the tunica vaginalis testis studied with light, immunocytochemical, and electron microscopy in a 64-year-old man who also developed a metachronous renal cell carcinoma. To our knowledge, this is the first such case to be presented. We describe the cell of origin of this rare entity and its similarity to fibrous tumors of pleura and extrapleural sites, with a review of the English-language literature and emphasize that not all intrascrotal tumors are malignant.- - - - - - - - - - ranking = 1keywords = tunica (Clic here for more details about this article) |
3/8. Immunohistological studies of fibrous pseudotumor of the testicular tunica vaginalis.A fibrous pseudotumor of the testis from a 46-year-old man was examined histologically and immunohistochemically. The tumor, situated in the tunica vaginalis, appeared as multiple round nodules up to 2 cm in diameter, and was composed largely of fibrous tissue with scanty inflammatory cell infiltration. Besides mesothelial cells covering part of the tumor, foci of piled-up cells were found among the fibrous tumor tissue. The cells in the foci were spindle and polygonal in shape, and contained oval nuclei. Immunohistochemically, these cells were positive for vimentin and keratin, but negative for CEA. Similar features have been found in pleural mesothelioma, supporting the concept that testicular fibrous pseudotumor could represent neoplastic growth of the mesothelium of the tunica vaginalis.- - - - - - - - - - ranking = 1keywords = tunica (Clic here for more details about this article) |
4/8. fibroma of tunica albuginea.A case of fibroma of the tunica albuginea is presented with a review of the literature on previously reported cases of this rare entity. The characteristics of this lesion, its pathogenesis, and its treatment are considered.- - - - - - - - - - ranking = 0.83333333333333keywords = tunica (Clic here for more details about this article) |
5/8. Fibrous pseudotumor of the tunica vaginalis testis.The incidence of fibrous pseudotumor of the tunica vaginalis testis is rare. It is a benign, fibroproliferative process with hyalinization and sometimes with focal calcification. In most cases malignancy is suspected although by careful physical examination it may be possible to establish the diagnosis pre-operatively. The best form of therapy is frozen section biopsy of the pseudotumor followed by excision; including if necessary the tunica vaginalis. If the pseudotumor is locally extensive an epididymectomy is sometimes necessary. A study of the literature reveals that because of the rarity of this lesion orchidectomy appears to have been performed in most cases. A case report of a patient with fibrous pseudotumor of the tunica vaginalis testis is presented.- - - - - - - - - - ranking = 1.1666666666667keywords = tunica (Clic here for more details about this article) |
6/8. Histogenesis of adenomatoid tumour associated to pseudofibromatous periorchitis in an infant with hydrocele.An 18-month-old infant with recurrent congenital hydrocele presented with a mass in the caput epididymis. The tumour and several fragments of the tunica vaginalis were removed and studied by light and electron microscopy. The tumour showed the characteristic histological pattern of an adenomatoid tumour of mesothelial origin. The histological appearance of the tunica vaginalis was not uniform; some areas resembled the adenomatoid tumour to the epididymis, others exhibited histological and ultrastructural features of a haemangioma, whilst elsewhere, the two patterns were intermingled. Finally, areas of pseudofibromatous periorchitis with vascular proliferation and slit-like structures lined by mesothelial cells were recognized. These features suggest that the adenomatoid tumour originated from a localized reactive process with inflammation and vascular proliferation enclosing occasional slit-like structures originating from the mesothelial lining of the tunica vaginalis. Subsequent regression of vascular proliferation and inflammatory infiltration and continued mesothelial proliferation would give rise to the typical mesothelial pattern of adenomatoid tumour.- - - - - - - - - - ranking = 0.5keywords = tunica (Clic here for more details about this article) |
7/8. Fibrous pseudotumor of the scrotum.We report a case of a fibrous pseudotumor of the scrotum. This is a relatively rare tumor, which should be considered in the differential diagnosis of testicular and testicular tunica tumors. The latter type is benign and orchiectomy could be avoided.- - - - - - - - - - ranking = 0.16666666666667keywords = tunica (Clic here for more details about this article) |
8/8. Benign fibrous paratesticular tumors.Utilizing the criteria of Goodwin, a case each of chronic proliferative periorchitis and multiple fibromas of the tunica vaginalis testis causing paratesticular tumors is presented and discussed. Both of these rate processes appear to be distinct and separate clinical entities, although they appear to be similar histologically. With increased awareness by those treating intrascrotal masses, these processes may be correctly recognized and more testes may be salvaged.- - - - - - - - - - ranking = 0.16666666666667keywords = tunica (Clic here for more details about this article) |