[Clinical-epidemiologic characteristics of large, invasive basal cell carcinomas of the scalp].

We studied a large, invasive basal cell carcinoma of the scalp in 42 operated patients (53 tumors) of which 26 patients with recurrent and 16 with no recurrence. This is a rare clinical form of this tumor that invades the skin in addition to some or all of the following structure: soft tissue scalp, skull, brain and brain membranes. The literature is known as the Giant basal cell carcinoma according to TNM classification of BCC in pT4 stage. Caused by aggressive subtypes of BCC. Treatment is surgical and involves only large, mutilate surgery and extensive reconstruction. Relapse often occurs. The aim was to analyze clinical and epidemiological characteristics of large, invasive basal cell carcinoma of the scalp, finding the causes of relapse and proposal timely diagnosis. We have concluded that the appearance of tumors in the frontal and pariental region of the scalp is related to the presence of known risk factors, that tumors often penetrate bones and brains resulting in more frequent recurrence in this localization. All tumors were caused by aggressive forms of BCC. Patients in the group with recurrent, previously responded to treatment and had more surgery than patients without recurrence. Treatment-related adverse events occurred in most patients (recurrence and/or death).