Melanocyte structure and anatomy. melanin producing cells. Melanin is the pigment responsible for skin color. vector poster 29892354 Vector Art at Vecteezy MELANOCYTIC DISEASES, MELANOMA and PATHOLOGY OF> Flashcards Quizlet Tumoral melanosis mimicking residual melanoma in the setting of talimogene laherparepvec treatment Journal for ImmunoTherapy of Cancer Melanocytes Melanin and More GASTROINTESTINAL HEMORRHAGE (2): Melena. Melena, the passage of black, tarry stools, usually implies blood loss greater than 500 ml originating anywhere between the oropharynx and the right hemicolon. Melena occurs most often,