Reports Of Malignant Tumors Research Articles

Carcinoma de células claras en ovario accesorio

Ectopic ovarian tissue is an extremely rare gynecological variation. Its classification is controversial. The true origin of ectopic ovarian tissue seems to lie in an alteration in the migration of germ cells during the embryonic period. Diagnosis requires histopathological confirmation. There are about 50 published cases of ectopic ovarian tissue in the literature and almost half describe some abnormality of ectopic ovarian tissue. There are only three reports of malignant tumors in a supernumerary ovary (adenocarcinoma). We present the first reported case of clear cell carcinoma arising in an accessory ovary and also provide a review of all cases published to date.

Villous Adenoma in Augmentation Colocystoplasty: A Case Report and Discussion of the Pathogenesis

Reports of malignant tumors in enterocystoplasties have recently been accumulating. To date no case of benign tumors has been recorded. We present a case of villous adenoma in a sigmoid colocystoplasty. The possible etiological factors and pathogenesis are discussed, and recommendations are made about followup.

Radiation Therapy of Malignant Tumors of the Testis

Historical Survey The literature contains numerous single case reports of malignant tumors of the testis but comparatively few studies of large series of cases. This is undoubtedly due to the comparative rarity of the disease. Cade (6) states that neoplasms of the testis comprise 1 to 1.5 per cent of all malignant tumors and 3 per cent of the malignant tumors of the genito-urinary tract in males. These figures compare favorably with those of Dean (12) of Memorial Hospital (New York), who found the respective incidences to be 2.09 and 3.39 per cent, whereas if all malignant tumors of both sexes were taken into consideration, the incidence amounted to 1.008 per cent. Chamberlin and Jamison (7), from the University of Pennsylvania, likewise noted an incidence of 1 per cent. Tanner (41), in an earlier publication, reported one case in every 2,000 hospital admissions, while Murray and Ewert (31) state that malignant tumors of trle testis comprise only 0.5 to 0.6 per cent of all malignant neoplasms. In Army pop...