Klippel-Trenaunay syndrome associated with urinary tract hemangiomas.

Genitourinary hemangiomas in 2 children with Klippel-Trenaunay syndrome are reported. The presence of cutaneous hemangiomas should alert urologists to the possibility of urinary tract hemangiomas inpatients with gross hematuria. Transurethral manipulation of bladder hemangiomas should be avoided because of the danger of excessive hemorrhage, the treatment of choice being partial cystectomy.     

Pelvic lipomatosis: diagnosis using computed tomography.

Pelvic lipomatosis is a rare, benign disease in which the characteristic roentgenographic findings may mimic those of pelvic malignancy. In the past more than two-thirds of reported cases have been explored surgically for diagnosis. We present 2 cases to demonstrate how the definitive diagnosis of pelvic lipomatosis can be made with the aid of computed tomography to avoid invasive techniques.     

Ectopic atrial rhythms in the primate

P-wave polarity was studied in small primates during electrical stimulation of both atria. Negative P-waves in Leads II, III, and aV_F were obtained during stimulation of the lower right atrium near the inferior vena cava, the lower anterior left atrium near the inferior pulmonary vein, and the infero-posterior left atrium. The P-R interval was affected inconsistently. These studies confirm findings originally observed in the canine and human heart, and call for caution in making the diagnosis of “coronary rhythm” and “left atrial rhythm.” The term “ectopic atrial rhythm” seems preferable.     

Structure of the soft palate and composition of the oral mucous membrane in monkeys

Summary The soft palate of monkeys (M. irus, mulatta, fasciculata; 2.3±0.4 kg in weight) was studied morphologically and stereologically. After fixation by perfusion, the tissue was disected free, divided in halves and the halves into 5 segments each, and processed for light, transmission- and scanning electron microscopy. Morphometric techniques and a newly developed computer program for automatic data processing (Mumana) were employed in order to estimate, at the light microscopic level, the volumetric composition of the oral soft palate mucosa. The latter showed a different composition in anterior and uvular segments, without significant differences between male and female animals, but with slight changes possibly due to age. The main constituents of the oral soft palate mucosa were glandular and connective tissue, and lymph follicles, the latter being associated with the glandular duct system. The epithelial lining of the oral and nasal aspects were described, and taste buds embedded in island of orthokeratinizing stratified epithelium were demonstrated. The association between lymph follicles and the glandular duct system was discussed in relation to similar structures in man, and in relation to the hypothesis that they are concerned in local antigen recognition.