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amelanotic

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amelanotic /amel·a·not·ic/ (a″mel-ah-not´ik) pertaining to or characterized by the absence of melanin.
amelanotic
[am′ilənot′ik]
Etymology: Gk, a, melas, not black
pertaining to tissue that is unpigmented because it lacks melanin.


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This may not always be the case, as so-called amelanotic , i e not blue or brown colored, melanomas exist.
Pigment may be present within the tumor cells or picked up by macrophages in the stroma, although amelanotic melanomas are seen.
 
 
 
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