Abudu Boya, Cohen Philip R
Internal Medicine, Kaiser Permanente Oakland Medical Center, Oakland, USA.
Dermatology, San Diego Family Dermatology, National City, USA.
Cureus. 2019 Apr 2;11(4):e4369. doi: 10.7759/cureus.4369.
Basal cell carcinoma is the most common skin cancer. Pigmented basal cell carcinoma is an uncommon clinical presentation that can resemble a melanoma. We present the clinical and pathologic features of three individuals whose pigmented basal cell carcinomas masqueraded as melanomas. All of the patients were Hispanic and ranged in age from 63 years to 77 years. They presented with a pigmented lesion that was ultimately diagnosed as a pigmented basal cell carcinoma; one woman had a collision tumor consisting of a pigmented basal cell carcinoma and a seborrheic keratosis. All of the patients had their tumors removed using Mohs micrographic surgery, without recurrence. The clinical differential diagnosis of a black tumor-particularly in patients with darker skin types-should include pigmented basal cell carcinoma in addition to melanoma; a biopsy of the lesion will establish the diagnosis.
基底细胞癌是最常见的皮肤癌。色素性基底细胞癌是一种不常见的临床表现，可能类似于黑色素瘤。我们展示了三例色素性基底细胞癌伪装成黑色素瘤患者的临床和病理特征。所有患者均为西班牙裔，年龄在63岁至77岁之间。他们均表现为色素沉着病变，最终被诊断为色素性基底细胞癌；其中一名女性患有由色素性基底细胞癌和脂溢性角化病组成的碰撞瘤。所有患者均通过莫氏显微外科手术切除肿瘤，无复发。对于黑色肿瘤的临床鉴别诊断——尤其是皮肤颜色较深的患者——除黑色素瘤外，还应包括色素性基底细胞癌；对病变进行活检可明确诊断。
