AKA Leukoderma acquisitum centrifugum
Clinical presentation
- Nevus surrounded by a regular vitiligo-like halo nevus of depigmentation
- Halo hipopigmentado à volta do nevo, não é sinal de alarme
- Doentes podem queixar-se de prurido
- Halo melanoma is very rare - it is never a concentric halo around the lesion (irregular halo) and lesion shows melanoma specific patterns
- 4 clinical stages: progressive involution with subsequent total regression of the central nevus
Epidemiologia
- Common in children and young adults
- Often in the trunk
Dermatoscopia
- Usually globular
- Homogenous pattern possible
Histologia
- Usually compound type, infiltrated by dense band-like dermal inflammation (lichenoid) penetrating the lesion
- estoma rico em linfócitos. referir na requisição