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Biomedical subjects

C S Pedrosa

Publications and source records attributed to C S Pedrosa.

8 recordsLinked to original sources

The value of computed tomography in the localization of undescended testes.

Eight patients with unilateral and four with bilateral (4) unpalpable testes were evaluated with CT for localization. All patients were later submitted to laparascopy and/or surgery and 13 cryptorchid testes and 3 atrophic or agenesic testes were found. CT detected correctly 11 of the cryptorchid testes - (85%) with one false positive and one false negative finding. In the three atrophic or agenesic testes, CT did not identify any image suspicious of being a testis, so there three were no false positive studies here. It is concluded that CT is an accurate noninvasive method for the preoperative detection of cryptorchid testes.

Adolescent

Giant fibrous polyp of a calyx.

A case of a giant fibrous polyp of the pyelocaliceal system producing hydronephrosis is described. The presentation of the findings in this case as well as brief review of the literature are included.

Adult

Mycotic tuberculous aneurysm of the thoracic aorta.

Tuberculous mycotic aneurysm has been reported with surprising frequency, especially in the aorta. Because the diagnosis can often be made on clinical and roentgenologic grounds, and because of the very poor prognosis if untreated and surgical curability if recognized, experience with three cases is reported. The aneurysm is generally of the false variety, representing a walled-off perforation of the aorta. Contiguous tuberculosis in the form of lymphadenitis or Pott abscess is generally responsible for the aortic involvement that results in the aneurysm. Miliary tuberculosis, which is often present, is probably a result rather than the cause.

Aged

CT findings in gastrointestinal perforation by ingested fish bones.

Preoperative diagnosis of complications due to foreign bodies in the gastrointestinal tract is uncommon by conventional radiographic methods. We present two cases of gastric and duodenal perforation secondary to fish bone ingestion, diagnosed preoperatively by CT.

Adult

Computed tomography in abdominal Castleman's disease.

Three patients with abdominal Castleman disease studied by CT are presented. Two cases corresponded to localized mesenteric disease and the third to a systemic form of the process. The CT findings are nonspecific, although a dense enhancement of the lesions can be demonstrated sometimes on dynamic CT.

Adult