Ichthyosis

…A slang term for a particular dry, coarse-textured condition of the skin. Generally, it refers to the change that corresponds to the Western term fish skin, or the Japanese name ichthyosis, but some interpret it literally as "shark skin" and refer to it as lichen pilaris, and some even expand it to include goose skin. Ichthyosis is a disease characterized by dry, coarse-textured skin and the appearance of fish-scale changes, and there are many types, but to date there has been no international consensus on its classification. …

*Some of the terminology that mentions "ichthyosis" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…皮膚の特殊な乾燥，粗糙（そぞう）化(ざらざらになること)した状態の俗称。一般には欧米のfish skin，日本名の魚鱗癬（ぎよりんせん）ichthyosisに当たる変化を指すが，これを文字どおり〈サメの肌〉と解釈して毛孔性苔癬lichen pilarisを当てる向きや，さらに拡大して鳥肌goose skinまで含める見解もある。魚鱗癬は皮膚の乾燥，粗糙化と魚鱗様変化の出現を特徴とする病気で，種類も多いが，今日までその分類は国際的に統一をみていない。…

※「ichthyosis」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