Gutierrez Nikolas, Erickson Christof P, Calame Antoanella, Sateesh Brooke R, Cohen Philip R
Family Medicine, Touro University College of Osteopathic Medicine, Vallejo, USA.
Dermatology, Compass Dermatopathology, Inc., San Diego, USA.
Cureus. 2019 Jun 25;11(6):e4998. doi: 10.7759/cureus.4998.
Melanoacanthoma is a benign epithelial tumor composed of melanocytes and keratinocytes that can morphologically mimic malignant neoplasms. Two patients with melanoacanthoma that clinically masqueraded as melanoma are described: a 65-year-old African-American woman with a pigmented nodule on the right preauricular area and an 85-year-old Haitian-Creole man with a large exophytic nodule on his left lower abdomen. Melanoma was clinically suspected in both patients. Biopsies were performed, which established the diagnosis of melanoacanthoma. Complete removal of a melanoacanthoma should be considered since partial excision may result in recurrence.
黑素棘皮瘤是一种由黑素细胞和角质形成细胞组成的良性上皮性肿瘤，其形态学表现可酷似恶性肿瘤。本文描述了两名临床上伪装成黑色素瘤的黑素棘皮瘤患者：一名65岁的非裔美国女性，右耳前区有一个色素沉着结节；一名85岁的海地克里奥尔男性，左下腹部有一个巨大的外生性结节。两名患者临床上均怀疑为黑色素瘤。进行了活检，确诊为黑素棘皮瘤。由于部分切除可能导致复发，因此应考虑将黑素棘皮瘤完整切除。
