Which treatment modality offers the highest cure rate for basal cell carcinoma?

Which treatment modality offers the highest cure rate for basal cell carcinoma?

• A. Cryotherapy
• B. Curettage and cautery
• C. Mohs surgery
• D. Wide local excision

Answer: (C)

Mohs micrographic surgery achieves the highest cure rate for basal cell carcinoma because it removes the tumor in thin layers with immediate examination of all margins. This real-time, complete margin assessment lets the surgeon continue excising only tissue that contains cancer until every margin is clear, while sparing as much healthy tissue as possible. This margin-by-margin control is especially important for lesions on the face or in scar-like, infiltrative, or recurrent cancers, where subclinical spread is common and preserving function and appearance matters. Other methods destroy or remove the tumor without full margin mapping. Cryotherapy and curettage with cautery lack the detailed margin assessment, so residual cancer can be left behind, leading to higher recurrence. Wide local excision removes with predetermined margins but does not guarantee complete margin clearance the way Mohs does, particularly in high-risk or cosmetically sensitive areas. Thus, Mohs surgery offers the best chance of complete tumor removal and the lowest chance of recurrence.

Mohs micrographic surgery achieves the highest cure rate for basal cell carcinoma because it removes the tumor in thin layers with immediate examination of all margins. This real-time, complete margin assessment lets the surgeon continue excising only tissue that contains cancer until every margin is clear, while sparing as much healthy tissue as possible. This margin-by-margin control is especially important for lesions on the face or in scar-like, infiltrative, or recurrent cancers, where subclinical spread is common and preserving function and appearance matters.

Other methods destroy or remove the tumor without full margin mapping. Cryotherapy and curettage with cautery lack the detailed margin assessment, so residual cancer can be left behind, leading to higher recurrence. Wide local excision removes with predetermined margins but does not guarantee complete margin clearance the way Mohs does, particularly in high-risk or cosmetically sensitive areas. Thus, Mohs surgery offers the best chance of complete tumor removal and the lowest chance of recurrence.