1/11. Epididymal rhabdomyoma: report of a case, including histologic and immunohistochemical findings.Genital rhabdomyoma is a rare tumor of skeletal muscle origin that is usually found in the vulvar area of young women. The English literature contains only 2 previous case reports involving men, both of whom were 19 years old. One of these lesions originated in the tunica vaginalis of the testis, and the other originated in the prostate gland. We present the clinical, histologic, and immunohistochemical findings of an epididymal rhabdomyoma in a 20-year-old man. To our knowledge, this is the first such case reported in this location.- - - - - - - - - - ranking = 1keywords = tunica (Clic here for more details about this article) |
2/11. adenomatoid tumor of testicle.A rare case of intratesticular adenomatoid tumor is described. Pathologically and clinically this tumor is associated with the seminiferous tubules and the rete testis. The patient underwent left inguinal exploration to confirm the testicular tumor. A radical orchiectomy was performed. We believe this is the first case of documented intratesticular adenomatoid tumor that did not arise from either tunica albuginea or epididymis. The cytologic origin of adenomatoid tumors and an unusual finding of decreased spermatogenesis with marked atrophy of the testes are also presented.- - - - - - - - - - ranking = 1keywords = tunica (Clic here for more details about this article) |
3/11. Paratesticular metastases from congenital retroperitoneal tumor.A retroperitoneal tumor was removed from a fifteen-day-old infant. light microscopy revealed a teratoma consisting mainly of immature nervous tissue. Three months later the patient had recurrence and numerous peritoneal metastases showing a histologic pattern similar to that of the primary tumor. Twelve months later there was enlargement of the left testis due to metastases from teratoma infiltrating the tunica vaginalis of the left testis, the epididymis, and the spermatic cord. These metastases consisted of mature neurons and glial cells. The early dissemination of the tumor suggests an intracavitary spread pattern. The tumor maturation in paratesticular structures suggests that mesothelial cells are involved in the differentiation of tumoral germ cells.- - - - - - - - - - ranking = 1keywords = tunica (Clic here for more details about this article) |
4/11. Inguinal lymph node metastases from testicular tumor.The Northern israel Cancer Center serves 1 million inhabitants. Between 1968 and 1982, 33 patients with a diagnosis of nonseminomatous tumors of the testis were referred to this center. Of these patients inguinal lymph node metastasis developed in 4, each of whom had had risk factors for such metastasis. Two patients had undergone previous orchiopexy, and 2 had extension of the tumor to the epididymis and the tunica vaginalis testis. The inguinal region should be examined and watched carefully in patients with testicular tumor, especially those at high risk for inguinal metastases. Today, disease in patients with inguinal metastasis is curable by lymph node dissection and/or combination chemotherapy.- - - - - - - - - - ranking = 1keywords = tunica (Clic here for more details about this article) |
5/11. Epidermoid cyst of the testis--benign teratoma in an adult. Case report.Epidermoid cyst of the testis, which is regarded as benign monodermal development of differentiated teratoma and comprises less than 1% of all testicular tumors, was found within the tunica albuginea in a 23-year-old man. Following peroperative histologic confirmation of its benign nature, the cyst was locally removed, thereby avoiding orchiectomy.- - - - - - - - - - ranking = 1keywords = tunica (Clic here for more details about this article) |
6/11. adenomatoid tumor of testicular tunica albuginea mimicking testicular carcinoma.Adenomatoid tumors are an uncommon neoplasm of the paratesticular tissues, with the majority of the reported cases involving the epididymis. A case is reported of an adenomatoid tumor of the testicular tunica albuginea that masqueraded as testicular carcinoma.- - - - - - - - - - ranking = 5keywords = tunica (Clic here for more details about this article) |
7/11. Testicular and paratesticular tumors and tumor-like lesions of ovarian common epithelial and mullerian types. A report of four cases and review of the literature.Three new and eleven previously reported testicular or paratesticular tumors that resembled ovarian tumors of common epithelial type are discussed. The 14 tumors occurred in patients ages 11-68 (average 47) years of age. The exact location for 12 of the tumors is known; 5 involved primarily the testicular parenchyma, 3, the tunica vaginalis, and 4, paratesticular tissue. Five tumors were serous, four of which were in the borderline category. Four tumors were Brenner tumors, admixed in one case with an adenomatoid tumor. Single examples of mucinous cystadenoma, mucinous cystadenocarcinoma, endometrioid adenoacanthoma, clear cell adenocarcinoma, and a benign tumor of mixed cell types complete the list. Follow-up of from 3 months to 14 years is available in eight cases; only one tumor, the clear cell adenocarcinoma, is known to have been clinically malignant. A fourth lesion in this article was a paratesticular mass composed of endometrial glands and stroma and bundles of smooth muscle. It arose in an 82-year-old man who had been treated with estrogens for prostatic adenocarcinoma.- - - - - - - - - - ranking = 1keywords = tunica (Clic here for more details about this article) |
8/11. Undifferentiated intratubular germ cell tumor of the testis: light and electron microscopic study of a unique case.A 34-year-old white man was found to have a nodule on the surface of right testis which turned out to be metastatic embryonal carcinoma within the tunica albuginea. Examination of the orchiectomy specimen revealed extensive undifferentiated intratubular germ cell tumor (carcinoma in situ) with foci of intratubular embryonal carcinoma and seminoma. Ultrastructure of the cells comprising the carcinoma in situ was similar to that of undifferentiated germ cells. The development of intratubular embryonal carcinoma and seminoma in a testis with extensive carcinoma in situ lends further support to the concept that carcinoma in situ or the testis represents an undifferentiated germ cell tumor from which other types of germ cell tumors of the testis may evolve.- - - - - - - - - - ranking = 1keywords = tunica (Clic here for more details about this article) |
9/11. 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 = 3keywords = tunica (Clic here for more details about this article) |
10/11. Does testicular mass always require orchiectomy?Surgical exploration of a testicular mass should follow the basic principles of cancer surgery, including an inguinal approach, occlusion of the spermatic vessels, opening of the tunica vaginalis, and careful exploration of the testicle, epididymis, paratesticular structures, and spermatic cord. In a very few patients, when intratesticular lesion is small and moveable and can be seen through the tunica albuginea, and if there is a long history of scrotal mass, then the tunica albuginea should be opened and intratesticular exploration performed. The opening of the tunica albuginea should be opened and intratesticular exploration performed. The opening of the tunica albuginea does not violate the principles of cancer surgery, and for a few selected cases can prevent unnecessary orchiectomy. The incision of the tunica albuginea should no longer represent a surgical taboo to the urologist. Six cases of rare, benign intratesticular tumors are presented along with a rare indication for intratesticular exploration and testicle-preserving surgery.- - - - - - - - - - ranking = 6keywords = tunica (Clic here for more details about this article) |
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