Portwine stain

Japanese: portwine stain(英語表記)portwinestain
Portwine stain


[Hemangioma]
Also called hemangioma. Hemangioma simplex, commonly known as a "red birthmark," is a flat, flat, bright or pale pink spot with a clear border and a range of colors from dark to light. It is caused by the expansion and increase in capillaries in the upper dermis. When pressed, the red color disappears, but the original color returns when pressure is removed.

*Some of the terminology explanations that mention "portwine stain" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:


[血管性母斑hemangioma]
 血管腫とも呼ばれる。俗に〈赤あざ〉と呼ばれる単純性血管腫hemangioma simplex∥portwine stainは,扁平で盛上がりのない鮮紅色ないし淡紅色の斑で,境界ははっきりとしており,色は濃いものからうすいものまでさまざまである。真皮上層の毛細血管が拡張して増加しているもので,圧すると紅色が消えるが,圧を去ると元の色にもどる。…

※「portwine stain」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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