A large pancreatic cavernous hemangioma was found in a 30-year-old man with abdominal distention. Plain and contrast-enhanced computed tomography (CT), magnetic resonance imaging (MRI), ultrasonography (US), and angiography were performed prior to operation. Contrast-enhanced CT and angiography showed a large poorly enhanced hypovascular tumor at the head of the pancreas. But MRI and US disclosed findings compatible with a cavernous hemangioma.

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A case of primary retroperitoneal plasmacytoma causing a tumor thrombus within the renal vein is described. The use of radiographic techniques, including ultrasonography, computerized tomography and angiography, facilitated an accurate diagnosis. Tumor thrombi within the renal vein are rare except in cases of primary renal or adrenal neoplasms. In a patient with radiological evidence of retroperitoneal tumor and tumor thrombus within the renal vein plasmacytoma should be considered in the differential diagnosis of retroperitoneal neoplasms.

Uterine atrophy is a conspicuous finding in Nya:NYLAR female mice chronically infected with Toxoplasma gondii. Administration of 17B-estradiol to infected mice induced a vigorous uterotropic response, i.e., an increase in uterine weight, in endometrial hypertrophy and proliferation, and in the activity of three estrogen-regulated uterine enzymes. These findings rule out a parasite-induced refractoriness of the uterus to estrogen and point to ovarian dysfunction (hypogonadism) as the immediate cause of the uterine atrophy.

A large juvenile polyp in the ascending colon of a 5-year-old boy was successfully polypectomized . The boy often had rectal bleeding, and anemia was known. Transection was necessary to prevent bleeding and anemia.