Maredia Hasina, Eseonu Amarachi, Rozati Sima
Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, USA.
Cureus. 2020 Nov 2;12(11):e11298. doi: 10.7759/cureus.11298.
Common blue nevi tend to be singular or localized, with multiple eruptive blue nevi being a rare occurrence. We report the case of a young adult who presented with multiple asymptomatic lesions that had appeared gradually over a few years. Physical examination revealed 30 distinct, blue-gray macules diffusely over the medial buttocks, lower back, and dorsal arms. Histopathology showed pigmented dendritic melanocytes with associated melanophages, features characteristic of blue nevus. This case demonstrates that eruptive blue nevi can present as numerous, disseminated lesions over multiple anatomic sites. Recognition of the various patterns of eruptive blue nevi and their benign nature can reduce unnecessary biopsies and work-up.
普通蓝痣往往是单发或局限的，多发性发疹性蓝痣较为罕见。我们报告一例年轻成人病例，该患者有多个无症状皮损，这些皮损在数年内逐渐出现。体格检查发现在内侧臀部、下背部和上臂背侧散在分布着30个明显的蓝灰色斑疹。组织病理学显示有色素沉着的树突状黑素细胞及相关的噬黑素细胞，这是蓝痣的特征性表现。该病例表明，发疹性蓝痣可表现为多个解剖部位出现大量播散性皮损。认识发疹性蓝痣的各种表现形式及其良性本质可减少不必要的活检和检查。
