Linear basal cell carcinoma: A distinct clinical entity

Area of Science:

• Dermatology
• Plastic Surgery
• Oncology

Background:

• Basal cell carcinoma (BCC) is the most common skin cancer.
• Linear BCC is a rare morphoeic variant with distinct clinical characteristics.
• Limited literature exists on linear BCC within plastic surgery.

Purpose of the Study:

• To define linear basal cell carcinoma (BCC) as a distinct clinical entity.
• To highlight the significance of linear BCC in plastic surgery literature.
• To review reported cases and analyze clinical and histological features.

Main Methods:

• A comprehensive literature search was performed using Medline and PubMed.
• 33 reported cases of linear BCC were identified and analyzed.
• Data on tumor site, histological subtype, and excision margins were extracted.

Main Results:

• The periocular region was the most common site (49%).
• Nodular BCC was the most frequent histological subtype (50%).
• Excision margins were often insufficient, with none achieving complete excision using 2mm or 4mm margins in the cases analyzed.

Conclusions:

• Linear BCC is a distinct clinical entity requiring specific management considerations.
• Its presentation along relaxing skin tension lines suggests increased subclinical extension.
• Margin-controlled excision is advised due to aggressive behavior and potential for incomplete resection.