Cardioskeletal mitochondrial myopathy associated with chronic magnesium deficiency.

A 3-year-old boy presenting with convulsions and carpopedal spasm had hypomagnesemia and hypermagnesuria due to congenital magnesium-losing nephropathy. Despite chronic oral and intermittent intravenous magnesium supplementation, he remained chronically hypomagnesemic. At age 4, he developed a progressive proximal myopathy and dilated hypertrophic cardiomyopathy that ultimately contributed to his death at age 14 years.

Epstein-Barr virus, fatal infectious mononucleosis, and Hodgkin's disease in siblings.

Epstein-Barr virus (EBV) infection in a family resulted in a fatal disseminated heterophil negative infectious mononucleosis syndrome in a nine-year-old girl. This was followed closely by a similar disease process in her six-year-old brother which evolved over a one-year period into Stage IIIB Hodgkin's disease. Finally, three years after the index EBV case in the daughter, the mother was diagnosed with a non-Burkitt's-type undifferentiated lymphoma that proved rapidly fatal.

Catheter embolization: preparation of patient with pheochromocytoma.

This is a case report of a patient treated at West Virginia University Medical Center that illustrates the successful use of preoperative percutaneous angiographic embolization of a pheochromocytoma in controlling a malignant hypertensive crisis.