Follow-up

Classification	Follow up
Tis	Completed after excision
Group 1 T1a	Completed after 3 months follow-up. Self-control afterward
Group 2 T1b, IB: MM < 0.8 mm with ulceration T1b, IB: MM 0.8 – 1.0 mm +/- ulceration T2a, IB: MM 1.1 – 2.0 mm without ulceration T2b, IIA: MM 1.1 – 2.0 mm with ulceration T3a, IIA: MM 2.1 – 4.0 mm without ulceration	Follow-up every ½ year in 5 years. Afterwards control yearly at general practitioner, or dermatologist. * If sentinel node could not be identified during surgery, the patient will be scanned by radiological imaging at minimum 6 and 12 months control.
Group 3 T3b, T4a, T4b – any stage T1b, T2a, T2b, T3a, stage III	Follow-up every 3^rd month in first 2 years, then every ½ year in last 3 years. PET-CT in month 0, 6, 12, 24 and 36 months. An ultrasonic scan of positive sentinel node region(s) every 3^rd month in first 2 years, then every ½ year in last 3 years (if not total lymph node dissection is performed).
Group 4 All metastasis without known primary tumor (T0, N category, and M category).	Indicidual follow-up, but often as the group above.

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