例1:男,45岁。患上呼吸道感染在本村卫生所给予臀部肌肉注射青霉素,因暂无消毒碘剂和酒精,临时将戊二醛用作皮肤消毒剂。数天后臀部出现大小不等的硬结,继而出现皮下波动感,该部位皮肤颜色比正常皮肤较暗,呈暗褐色,患者感到患处微痛不适。于2007年12月21日来本院就诊。例2:男,4 Example 1: Male, 45 years old. Suffering from respiratory tract infection in the village health clinic to give intramuscular injection of penicillin, temporary non-sterilized iodine and alcohol, glutaraldehyde temporarily used as a skin disinfectant. A few days after the hips appeared unequal size of induration, and then there is a sense of subcutaneous fluctuations in the skin color darker than the normal area, dark brown, the patient felt the affected area slightly painful discomfort. December 21, 2007 to our hospital. Example 2: Male, 4