Follow-Up Guidelines for Skin Cancer

Basal Cell Carcinoma (BCC) Follow-Up

The American Academy of Dermatology recommends annual skin cancer screening for all patients with a history of BCC, with more frequent examinations during the first 2 years post-treatment (every 6-12 months) when risk of recurrence is highest 1, 2, 3
Patients with BCC have a 40.7% 5-year probability and 59.6% 10-year probability of developing another non-melanoma skin cancer, with increased risk after multiple BCCs 2
BCC patients have increased risk of developing melanoma (relative risk 1.99 for men, 2.58 for women) 2
Counsel patients on skin self-examination techniques and advise on sun protection strategies: sunscreen use, sun avoidance, protective clothing, and avoiding tanning beds 1, 2

Clinical examinations every 3 months during first 3 years, then every 6-12 months thereafter are recommended for melanoma follow-up 5, 6
Imaging not necessary for patients with thin primary melanomas, but consider ultrasound of lymph nodes, CT, or whole-body PET/PET-CT scans for high-risk patients (thick tumors, post-metastasis treatment) 5, 6
Instruct patients and family members on sun protection and avoidance, and teach lifelong regular self-examination of skin and peripheral lymph nodes 5, 6
Patients with lentigo maligna melanomas have 35% risk of another cutaneous malignancy within 5 years 5, 6

Complete skin and lymph node examination every 3-6 months for first 3 years, and every 6-12 months thereafter are recommended for MCC follow-up 7, 8
Perform imaging studies as clinically indicated (adenopathy, organomegaly, abnormal liver function tests, new suspicious symptoms), and consider routine imaging for high-risk patients (stage IIIB or higher, immunosuppression) 7, 8
Minimize immunosuppressive treatments when clinically feasible 7, 8

Relying solely on sunscreen without implementing other protective measures, neglecting sun protection on cloudy days, using sunglasses without adequate UV protection, and underestimating the importance of regular skin examinations are common pitfalls to avoid in skin cancer follow-up 4
Inconsistent follow-up during the first 1-2 years when risk of recurrence is highest, and failing to educate patients about self-examination techniques are also common pitfalls to avoid 3, 1, 2