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Granulomatous mastitis also known as granulomatous inflammatory lesions of the breast can be divided into idiopathic granulomatous mastitis (also known as granular lobular mastitis) and granulomatous mastitis occurring as a rare secondary complication of a great variety of other conditions such as tuberculosis and other infections, sarcoidosis and granulomatosis with polyangiitis. Special forms of granulomatous mastitis occur as complication of diabetes. Some cases are due to silicone injection (Silicone-induced granulomatous inflammation) or other foreign body reactions. Primary presentation of any of these conditions as mastitis is very rare and in many cases probably predisposed by other breast or systemic conditions. Although granulomatous mastitis is easily confused with cancer it is a completely benign (non-cancerous) condition. Treatment is radically different for idiopathic granulomatous mastitis and other granulomatous lesions of the breast, the precise diagnosis is therefore very important. ==Idiopathic granulomatous mastitis== Idiopathic granulomatous mastitis is defined as granulomatous mastits without any other attributable cause such as those above mentioned. It occurs on average two years and almost exclusively up to six years after pregnancy, usual age range is 17 to 42 years. Some cases have been reported that were related to drug induced hyperprolactinemia.〔〔 Exceptionally rarely it has been diagnosed during pregnancy and in men. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Granulomatous mastitis」の詳細全文を読む スポンサード リンク
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