The clinical identification of amelanotic malignant melanoma (AMM) and hypomelanotic
malignant melanoma (HMM) becomes difficult due to the lack of pigmentation and to the
diverse clinical presentations. Dermoscopy is very useful in these cases, increasing
the level of suspicion of malignancy. We report 4 cases of amelanotic malignant
melanoma and hypomelanotic malignant melanoma with characteristic dermoscopic
findings. Dermoscopy under polarized light demonstrates vascular polymorphism,
globules and milky-red areas, in addition to chrysalis and multiple blue-gray
dots.
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