Abstract
The patient was a 58-year-old man who had been diagnosed as having diabetes mellitus at age 51 and received therapy thereafter. Hemodialysis was started at age 54, because of end stage renal failure due to diabetic nephropathy. The patient was transferred and admitted to our hospital on July 9, 2008, complaining of a painful ulcer on the tip of the penis. At the time of admission, ulcers and necrosis were observed on the prepuce and penis, which had turned black. Because of marked pain associated with penile necrosis, he underwent partial penectomy on July 17. After surgery that ultimately resolved severe pain, the wound re-opened. Therefore, debridement was carried out. After debridement, the wound was healing well. Pathologic evaluation demonstrated inflammatory and necrotic changes without any signs of malignancy. Although diabetic arterial obliteration sometimes causes necrosis of toes and feet, penile necrosis is rare. We found only 18 reported cases of penile necrosis due to diabetes in Japan.
