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Histiocytic diseases in dogs are well recognized. They are a frustrating group of diseases because it may be difficult to differentiate them from granulomatous, reactive inflammatory or lymphoproliferative diseases. The clinical presentation and behaviour as well as response to therapy vary greatly among the syndromes. ==Canine histiocytic diseases== There are at least four well-defined canine histiocytic diseases: :1. Canine cutaneous histiocytoma (derived from specialised epidermic dendritic cells, the Langerhans cells) :2. Reactive histiocytosis (immunohistochemical features show that interstitial/dermal DCs are involved) :2.a. Cutaneous histiocytosis (CH) :2.b. Systemic histiocytosis (SH) :3. Histiocytic sarcoma complex (immunohistochemical features of dendritic cells, possibly interdigitating or perivascular DCs) :3.a. Malignant histiocytosis :3.b. Histiocytic sarcoma *Localized histiocytic sarcoma *diffuse histiocytic sarcoma 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「canine histiocytic diseases」の詳細全文を読む スポンサード リンク
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