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Pinhas M Livne

Publications and source records attributed to Pinhas M Livne.

21 records · Page 2Linked to original sources

Testicular torsion in the pediatric age group: diagnosis and treatment.

PURPOSE: To review and update several aspects of testicular torsion. INCIDENCE: The relative incidence of testicular torsion, torsion of testicular appendix and epididymo-orchitis is variable and depends on mode of diagnosis and patients' age. AGE: Testicular torsion can occur at any age. The peak is in adolescents below the age of 18 years. SYMPTOMS: Classical symptoms are not always present. Range of duration is varied. Nausea and vomiting are positive predictive value for testicular torsion. PHYSICAL EXAMINATION: Main findings predicting testicular torsion are absence of cremasteric reflex and diffuse tenderness. IMAGING: Color Doppler Ultrasound can assess in equivocal and low clinical suspicious conditions for testicular torsion. NEONATAL TORSION: There are two conditions in this age group; the prenatal that urgent exploration is in controversy and postnatal that urgent surgery is required. LATE OUTCOME: Early salvage rate and late atrophy depends on duration and degree of torsion. MEDICOLEGAL: Testicular torsion is an active area of malpractice litigation. Late presentation and atypical presentations do not affect the medicolegal outcome.

Blood Flow Velocity↗

Significance of angiogenesis and microvascular invasion in renal cell carcinoma.

The aim of this study is to evaluate the relationship between tumor angiogenesis and microvascular invasion, and the subsequent development of metastatic disease in patients undergoing surgery for renal cell carcinoma (RCC). The study group consisted of 102 patients who underwent surgery for RCC between the years 1990 and 1997 in our institute with a mean follow up period of 81.3 months. Paraffin blocks were stained for Factor VIII - related antigen and CD34 which decorate endothelial cells in order to assess angiogenesis and microvascular invasion and their relevance for developing metastatic disease. When Factor VIII- related antigen staining was used we found that the microvessel count correlated with the development of metastatic disease with a mean count of 49.7 for patients with no evidence of disease and a mean count of 95.5 for patients who developed metastatic disease (p<0.05). We also found that microvascular invasion correlated with the development of metastatic disease. It was demonstrated in 55.5% of patients who developed metastatic disease versus 23.8% of patients with no evidence of disease with Factor VIII staining (p<0.05), and in 33.3% and 7.1%, respectively (p<0.05) with CD34 staining. This study suggest that demonstration of intense angiogenesis and micro-vascular invasion may be a predictor of a more aggressive tumor mandating closer follow up and consideration of adjuvant therapy.

Aged↗

Prolapsed ureterocele after upper pole heminephrectomy.

Prolapse of a ureterocele through the external meatus is uncommon, and a prolapsed ureterocele occurring after upper pole heminephrectomy is extremely rare. We describe such a case, occurring 2 months after surgery. The ureterocele was excised with the upper pole ureteral stump, and the lower pole ureter was reimplanted with a good outcome.

Female↗