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Malignant melanoma in a patient with oculocutaneous albinism
C J Streutker1, D McCready, K Jimbow
1Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.
Background:
Sun-induced malignancies (basal cell and squamous cell carcinomas) are common in oculocutaneous albinism, however, the incidence of malignant melanoma is a topic of controversy.
Objective:
We have reviewed the literature and report a case of a woman with oculocutaneous albinism with an amelanotic melanoma of the anterior chest wall.
Results:
There are only 26 previously reported cases (both case reports and African albino population studies) in 25 patients in the literature. A 27th case with immunohistochemical and ultrastructural evaluation is presented.
Conclusions:
It appears that melanoma, a malignancy for which sun exposure and light colouration are felt to be major risk factors, has a low incidence among a population that is both hypopigmented and often exposed to high levels of ultraviolet light. This low incidence is poorly understood and frequently disputed.