Genetics of Mosquito Vector Competence Microbiology and Molecular Biology Reviews A Shared Genetic Mechanism for Melanotic Encapsulation of CM Sephadex Beads and a Malaria Parasite, Plasmodium cynomolgi B, in t An interesting finding in melanocytic nevus that may alarm a pathologist and prompt a thorough search for other features of melanoma Herniation of a nevus nest into the lumen of An acral nevus is a benign melanocytic lesion found on the palms and soles. Dermoscopically, it most commonly shows the parallel furrow pattern, where pigmentation follows the furrows of the skin markings.