Bridges Megan Nichole, Doval Mariana
Dermatol Online J. 2009 Feb 15;15(2):13.
Cutaneous squamous cell carcinoma (SCC) along with basal cell carcinoma (BCC), collectively known as Nonmelanoma skin cancer (NMSC), are the most common cancers in the United States. Squamous cell carcinoma of the skin is less common than BCC, but is known to be more aggressive with a higher mortality rate. Squamous cell carcinoma of the external auditory canal (EAC) is rare when compared to SCC on other cutaneous sites. Due to the rarity of SCC originating in the EAC, there is currently no universal staging system, making it difficult to analyze data and form a treatment strategy. This is a case of a 76-year-old man who initially presented with actinic keratosis of the EAC that died in just over a year from metastatic cutaneous SCC.
皮肤鳞状细胞癌（SCC）与基底细胞癌（BCC）统称为非黑色素瘤皮肤癌（NMSC），是美国最常见的癌症。皮肤鳞状细胞癌比基底细胞癌少见，但已知其侵袭性更强，死亡率更高。与其他皮肤部位的鳞状细胞癌相比，外耳道（EAC）的鳞状细胞癌较为罕见。由于起源于外耳道的鳞状细胞癌很罕见，目前尚无通用的分期系统，这使得分析数据和制定治疗策略变得困难。这是一例76岁男性患者，最初表现为外耳道光化性角化病，在短短一年多后死于转移性皮肤鳞状细胞癌。
