title: Giant pigment granules in dermal melanocytes of rat scrotal skin.
abstract: Giant melanosomes, ellipsoidal (1.5 micron X 1.3 micron) or spherical (1.1 micron-1.4 micron in diameter) exist in the scrotal skin of the black pelted Long Evans rat. They are longer and wider than normal stage IV melanosomes (0.7 micron X 0.4 micron) found in these dermal melanocytes.
mesh_terms: D000818:Animals; D008297:Male; D008543:Melanins / Q000032:analysis*; D008544:Melanocytes / Q000648:ultrastructure*; D008854:Microscopy, Electron; D051381:Rats; D012611:Scrotum / Q000648:ultrastructure; D012867:Skin / Q000648:ultrastructure*
chemical_list: D008543:Melanins