Extra-adrenal perirenal myelolipoma

Extra-adrenal perirenal myelolipomas are rare benign tumors that consist of adipose and hematopoietic tissue. We report a case of perirenal myelolipoma in an otherwise healthy man and review the literature.

Percutaneous nephrostomy drainage in the treatment of severe hemorrhagic cystitis

We report on 2 patients who underwent urinary diversion with bilateral percutaneous nephrostomy tube drainage for intractable hemorrhagic cystitis. Both patients received cyclophosphamide-based chemotherapy and 1 also underwent pelvic irradiation for locally advanced prostate adenocarcinoma. In each case the bleeding gradually ceased during a 1-week period. Both patients were alive at 6 months and were voiding spontaneously. We propose that the mechanism of treatment involves diverting endogenous urokinase as well as avoiding overdistention of the bladder.

Computerized tomography in the diagnosis of appendicovesical fistula

Appendicitis and its complications are among the causes of an enterovesical fistula, with approximately 100 such cases reported. This condition is seldom diagnosed preoperatively and surgery is often delayed. We report 2 cases of an appendicovesical fistula that were diagnosed preoperatively by computerized tomography (CT). We describe a CT finding consistent with the diagnosis, namely calcification in the thickened bladder wall adjacent to the cecum on noncontrast CT, which is a fecalith in the lumen of the fistula.

Serologic and immunochromatographic detection of oxygenated polyenoic acids in Euglena gracilis var. bacillaris

Acetone extracts of Euglena gracilis Klebs var. bacillaris Cori contain several lipoxygenase and cyclooxygenase products as measured by radioimmuno-assay. Three times more of the serologically active products are found in cells grown in the dark than in cells grown in the light. Lack of coincidence of their retention times on high performance liquid chromatography with authentic oxygenation products of arachidonic acid suggest that most of the serologically active compounds are derivatives of polyenoic fatty acids other than arachidonic acid. Several fractions react with anti-12-hydroxyarachidonic acid (an antiserum that recognizes mono- and di-hydroxyarachidonic acids). Three of these fractions have UV absorption spectra characteristic of conjugated trienes.