Biomedical subjects
Publications and source records attributed to J Tisnado.
There are several vascular abnormalities that could affect the scrotum. The commonest is a varicocele, and differentiation between this and other lesions is possible using Doppler ultrasound and pelvic angiography. A patient with a scrotal arteriovenous malformation (AVM) is presented in whom transcatheter embolization was possible.
An iatrogenic renal arteriovenous fistula was treated by transcatheter embolization with particles of absorbable gelatin sponge. Recurrent massive hematuria was successfully controlled. The procedure was easily accomplished with minimal loss of renal parenchyma. Surgery, which usually requires partial or total nephrectomy, was avoided.
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The medical records, conventional radiographs, bone scans and pelvic CT scans obtained in 50 consecutive patients with malignant lesions involving the osseous pelvis were retrospectively reviewed. In 21 patients with primary bone tumors or with osseous involvement from adjacent pelvic neoplasms, CT provided additional information, in 17 patients (80%) which had direct bearing in the clinical management. CT was less useful in 29 patients with bony metastases. Although more information was obtained, this was of clinical significance in only 12 patients.
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A 51-year-old man with repeated and massive rectal bleeding was found to have a large angiodysplasia of the rectum. A superselective embolization of the distal part of the superior rectal artery with Ivalon controlled the rectal bleeding for 4 months. Lower gastrointestinal bleeding recurred and a recurrent lesion was re-embolized with Ivalon with excellent control of bleeding in a follow-up of 8 months. Embolization is an alternative to surgery for the treatment of rectal angiodysplasia and hopefully may result in a long-term cure.