Temperate pyomyositis: a pain in the belly.

Pyomyositis is a rare disease in temperate climates. This case is a unique presentation of pyomyositis of the rectus abdominal muscle mimicking an acute abdominal process. Most reported cases of pyomyositis are of extremity infections with Staphylococcus aureus.This report presents a case of polymicrobial pyomyositis from Haemophylus parainfluenza and Steptococcus viridians infection.