結節性動脈周囲炎様組織所見と脂肪変性のみられた精索血管炎の1例

Abstract

A 23-year old male was admitted to our hospital because of swelling of the left scrotum for one month without any particular past history. Blood count, chemistry, urinalysis, chest X-ray and electrocardiogram revealed normal findings. Scrotal exploration was performed. A soft, dumbbell-like tumor enveloped in a thin membrane was found above the left testis. Pathology revealed fibrinous exudation and fibrinoid necrosis in the whole vessel wall indicating resemblance to the panarteritis in periarteritis nodosa. Some granulomatous lesions with many histiocytes were also noted around these arteries. The findings suggested that a inflammation like periarteritis nodosa had occurred at the spermatic cord and subsequently developed into fatty degeneration in the surroundings. Since local periarteritis nodosa-like lesion may progress to systematic disease, further observation is mandatory for this case.