Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Lentigo?

…stributed in fashion relatively uniform. When a single nest of melanocytes develops in such a lesion, it is then called a junctional nevus. When, in time, melanocytes of that process spill from the epidermis into the papillary dermis, a compound nevu…

Dermatology Practical & Conceptual

Pigmented Lesions

…eous fat. Nevi Congenital Classic acral (439, 440, 581) Melanocytes disposed as solitary units, but also in discrete nests at the dermoepidermal junction. Scatter of solitary melanocytes and nests of them above the dermoepidermal junction ofte…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Nevus Cells, Nevocytes, and Nevomelanocytes?

…hors imply that nevus cells are distinctive and different from melanocytes. In fact, what are termed nevus cells, nevocytes, and nevomelanocytes are simply abnormal melanocytes. Melanocytes, whether normal or abnormal, are defined morphologically on…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Junctional Activity and Active Junctional Nevus?

…till-lifes; they do not see them as motion pictures. Nuclei of melanocytes may be said to be “monomorphic” or “pleomorphic,” but they cannot be judged to be “active” or “inactive.” All melanocytes of al…

Dermatology Practical & Conceptual

Spitz and Reed nevi: acquired or congenital?

…d acquired, although, according to Ackerman and other authors, melanocytes that constitute an acquired nevus must already have been present in the skin from the time of parturition and, almost certainly, those melanocytes do not migrate into the skin…