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基底细胞癌(以下简称 BCC)是人类最常见的皮肤恶性肿瘤,约占所有皮肤癌的75%,其中85%发生在头颈部。一般认为,BCC生长缓慢,常呈局部浸润性扩展,很少发生转移。约有90%以上的 BCC 经过初次治疗而痊愈。发生在头颈部的 BCC 因受胚胎学和解剖学的影响,其侵犯性和破坏性均高于身体的其它部位,治疗也较困难,所以该部位的BCC 容易引起复发和转移。一、头颈部 BCC 的复发原发性 BCC 切除后5年期问,在原病变区内出现组织成分与原发性 BCC 相同的肿瘤称
Basal cell carcinoma (hereinafter abbreviated as BCC) is the most common skin malignancy in humans, accounting for about 75% of all skin cancers, 85% of which occur in the head and neck. It is generally believed that BCC grows slowly, often with localized invasive expansion, and metastasis rarely occurs. About 90% of the BCC recovered after initial treatment. The BCC in the head and neck is affected by embryology and anatomy. It is more aggressive and destructive than other parts of the body. Treatment is also difficult. Therefore, BCC at this site is likely to cause recurrence and metastasis. A recurrence of BCC in the head and neck. 5 years after the resection of the BCC, the tumor with the same tissue composition as the primary BCC appears in the original lesion area.