Penile calciphylaxis in a patient with end-stage renal disease and chronic hemodialysis: a case report.

Penile calciphylaxis is a rare and highly morbid condition mainly affecting diabetic patients with chronic renal failure (CRF). It is characterized by ischemic skin ulceration and necrosis secondary to dystrophic calcification of the subcutaneous penile tissue and penile arterioles. We report a 52-year-old male with a 6-year history of diabetes mellitus and CRF on hemodialysis, who presented with a painful penile necrotic lesion in the last three weeks.

Can pelvic radiotherapy induce a leiomyosarcoma of the prostate? (A case report).

Leiomyosarcoma of the prostate is an extremely rare neoplasm. It represents less than 0.1% of all prostate malignancies.

Removal of Basic Red 46 dye from aqueous solution by adsorption onto Moroccan clay.

In this study, Moroccan crude clay of Safi, which was characterized by X-ray diffraction, is used as adsorbent for the investigation of the adsorption kinetics, isotherms and thermodynamic parameters of the Basic Red 46 (BR46) in aqueous solutions at various dye concentrations, adsorbent masses and pH values. The results showed that the adsorption capacity of the dye increased by initial dye concentration and pH values. Two kinetic models (the pseudo-first-order and the pseudo-second-order) were used to calculate the adsorption rate constants.