一例重症肌无力后出现色素沉着斑的病例。

Ho Kayleigh Huimin, Loo Khang Ning

General Medicine, Sengkang General Hospital, Singapore, SGP.

Cureus. 2023 Feb 9;15(2):e34823. doi: 10.7759/cureus.34823. eCollection 2023 Feb.

Lichen planus pigmentosus inversus (LPP-I) is characterized by the presence of hyperpigmented or hypopigmented lesions on the flexural surfaces of the body. It is a rare variant of lichen planus pigmentosus with unknown etiology. We report a case of a male presented with LPP-I three months after diagnosis of ocular myasthenia gravis, highlighting the possible autoimmune association.

反向性色素沉着扁平苔藓（LPP-I）的特征是身体屈侧表面出现色素沉着过多或色素沉着不足的皮损。它是色素沉着扁平苔藓的一种罕见变体，病因不明。我们报告一例男性患者，在诊断为眼肌型重症肌无力三个月后出现LPP-I，强调了可能存在的自身免疫关联。