Sentinel lymph node metastasis in primary cutaneous basosquamous carcinoma. A cross-sectional study.

Background And Objectives: Basosquamous carcinoma (BSC) is a rare, biologically aggressive tumor. This cross-sectional study aims to define risk factors for subclinical nodal metastasis in primary BSC, and identify the patients who would benefit from routine sentinel node biopsy (SLNB) as part of the initial management.

Methods: A total of 142 patients, with histologically proven BSC without palpable lymph nodes, underwent SLNB after the initial excision.