Solar purpura ("Senile purpura") is a skin condition characterized by large, sharply outlined, 1- to 5-cm, dark purplish-red ecchymoses appearing on the dorsa of the forearms and less often the hands. It is caused by sun-induced damage to the connective tissue of the skin.
Actinic purpuraは、血液が皮膚の比較的深い層に漏れ出すことで発生します。皮膚が薄くなり血管が脆くなった高齢者で、特に日光に多くさらされた場合に頻繁に起こります。 Actinic purpura results from the extravasation of blood into the dermis. This phenomenon is due to the skin atrophy and fragility of the blood vessels in elderly individuals, which is exacerbated by chronic sun exposure.
○ 処理
ステロイド軟膏は使用しないことが重要です。