phacomatosis

Japanese: phacomatosis
phacomatosis

...Also, not all birthmarks are present, and many become noticeable at a certain age. In cases where various birthmarks are combined, such as in Recklinghausen's disease and Pringle's disease, or when they are accompanied by visceral lesions, they are called phacomatosis, and are dominant hereditary disorders, but ordinary birthmarks are not hereditary.
[Nevus]
Nevus is a localized increase in the number of elements that make up the skin, such as epidermal cells, pigment cells, blood vessels, and sebaceous gland cells. There are various types of nevus, including vascular nevus, melanocytic nevus, epidermal nevus, and sebaceous nevus.

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…また,すべてが生下時から認められるわけでもなく,ある年齢から目立ってくるものも多い。レックリングハウゼン病やプリングル病などのように種々の母斑が組み合わさってみられたり,内臓病変をともなうものは母斑症phacomatosisと呼ばれ,優性の遺伝性疾患であるが,普通のあざは遺伝することはない。
【母斑】
 母斑は,皮膚を構成する表皮細胞,色素細胞,血管,脂腺細胞などの要素が局所的にたまたま増加したもので,血管性母斑,色素細胞系母斑,表皮母斑,脂腺母斑などがある。…

※「phacomatosis」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

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