Biomedical subjects
Publications and source records attributed to H Tesluk.
Volvulus of the spleen in absence of malarious splenomegaly is rare. Most reported instances occur in young and middle-aged women and are related to a congenital abnormality of the mesogastrium, pregnancy, and multiparity. In this reported case of splenic volvulus in a young, multiparous woman, posterior mesogastrium malformation was the cause. Certain preoperative findings could suggest this infrequent diagnosis in future cases.
Hypertension in children has been reported with increasing frequency because of increased awareness of its occurrence by clinicians. Renovascular lesions have been stressed in the past. However, in recent years, a number of nonrenovascular renal lesions have received attention and form the basis for this report. Unilateral chronic atrophic pyelonphritis, segmental unilateral pyelonephritis, the Ask-Upmark kidney, and unilateral renal hypoplasia have been associated with curable hypertension. The subject of juxtaglomerular cell hyperplasia, which has variably been reported in these cases, is reviewed. Ureteral obstruction, in the form of uretero-pelvic or ureterovesical junction obstruction, solitary renal cysts, the unilateral multicystic kidney, renal trauma, and renal tumors (Wilms' tumor and juxtaglomerular cell tumors) may also be associated with hypertension in children. Pheochromocytoma must be ruled out in all cases. Because of renewed interest, these nonrenovascular renal causes of hypertension are now likely to be diagnosed with increased frequency.
Enlargement of an undescended testicle in a 6 1/2-month-old-child resulted in radical orchiectomy. Pathological diagnosis was focal infarction of the testicle. This disorder must be considered in the differential diagnosis of testicular enlargement in the infant and child.
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Experimental embolization of the renal artery with cross-linked dextran (CLD) microspheres was performed in 6 dogs. The blood flow was monitored by electromagnetic flow meter (EM) in 3 dogs and by video dilution technique (VDT), adapted to an angiographic digital subtraction system, in a second group of 3 dogs. Retrograde flow in the embolized renal artery was detected by 99Tcm microspheres. Sequential emboli produce a predictable and equal flow response with both measuring techniques. Thus, the less invasive VDT can be used in the clinical setting to optimize and control embolization procedures. This type of flow monitoring has great potential in alerting the angiographer when approaching the risk level for retrograde flow.