陰嚢内硬化性脂肪肉芽腫の1例

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We present a case of sclerosing lipogranuloma of the scrotum. A 42-year-old man who had complained of a painless intrascrotal mass of one week's duration visited our clinic. Physical examination revealed a symmetrical Y-shaped hard mass around the penile base in the scrotum. Laboratory examination showed no abnormal findings except for a 14.0% eosinophilia. Magnetic resonance imaging (MRI) with a surface coil showed an atypical mass at the penile base. Percutaneous needle biopsy under ultrasound guidance was performed and histopathological findings revealed lipogranuloma accompanied by infiltrating multinuclear giant cells, eosinocytes and lymphocytes. The tumor gradually disappeared during a 4-week administration of antibiotics and antiphlogistics. We have also reviewed 95 cases of sclerosing lipogranuloma of the scrotum in the Japanese literature.