mixed connective tissue disease

...Not only polyarteritis nodosa, but also other necrotizing vasculitis, hypersensitivity vasculitis, allergic granulomatous vasculitis, and Wegener's granulomatosis are classified as collagen diseases because they show similar symptoms and lesions. Sjogren's syndrome, which shows a dry syndrome, is also often treated as a collagen disease, and mixed connective tissue disease (abbreviated as MCTD), which shows a mixture of symptoms such as systemic lupus erythematosus, systemic progressive sclerosis, and polymyositis, is also included in collagen diseases. Some scholars also include Behçet's disease in collagen diseases, but many scholars disagree, and they are often not included in collagen diseases. ...

*Some of the terminology that refers to "mixed connective tissue disease" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…結節性多発動脈炎に限らず，他の壊死性血管炎，過敏性血管炎，アレルギー性肉芽腫性血管炎，ウェーゲナー肉芽腫症なども，類似の症状･病変を示すことから，膠原病の範疇（はんちゆう）に入れられている。また乾燥症候群を示すシェーグレン症候群も膠原病の一つとして扱われることが多く，全身性エリテマトーデスや全身性進行性硬化症あるいは多発性筋炎などの入りまじった症状を示す混合性結合織病mixed connective tissue disease(略してMCTD)も膠原病の中に含まれる。そのほかベーチェット病なども膠原病の中に入れる学者もいるが，これに異論を唱える学者も多く，膠原病には含まれないことが多い。…

※「mixed connective tissue disease」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報