Table 3.

Instrumental investigation for clinical staging melanoma.

Pathologic features	Suggested tests
Melanoma in situ	None
Melanoma T1	Liver ultrasound Bilateral ultrasound of the lymph node drainage basin
Melanoma T2-T4a	Chest X-ray Liver ultrasound Bilateral ultrasound of the lymph node drainage basin
Melanoma T4b	Contrast-enhanced CT scan of the chest and abdomen Bilateral ultrasound of the lymph node drainage basin.

T1 ≤ 1 mm; T2 = 1,01–2,00 mm; T3 = 2,01–4,00 mm; T4 > 4,00 mm; a = not ulcerated; b = ulcerated.