Reconstruction of Forehead Basal Cell Carcinoma Defects

Primary Treatment Considerations Before Reconstruction

• The American Academy of Dermatology and the National Comprehensive Cancer Network recommend Mohs micrographic surgery for forehead BCC, given the H-zone location, which constitutes high-risk independent of size 1, 2
• Mohs micrographic surgery achieves 99% 5-year cure rates for primary BCC versus 88-90% with standard excision, with a strength of evidence based on multiple studies 3, 2
• If Mohs micrographic surgery is unavailable, standard excision requires minimum 5-10mm margins with frozen section control, as recommended by the British Journal of Dermatology 3, 4
• The National Comprehensive Cancer Network emphasizes the importance of confirming negative margins intraoperatively before proceeding with flap reconstruction, as tissue rearrangement requires complete margin assessment before closure 2

Critical Pitfalls to Avoid

• The British Journal of Dermatology and Praxis Medical Insights advise against using flap reconstruction if margins are positive or uncertain, as this is an absolute contraindication requiring re-excision first, with a high level of evidence supporting this recommendation 4, 5