Acquired melanocytic nevi (moles) - UpToDate
Sep 18, 2023 · Acquired melanocytic nevi are benign clonal proliferations of melanocytes that develop after birth. They can be classified as common (banal) or atypical and include several clinicopathologic variants, such as halo nevi, blue nevi, and Spitz nevi . Acquired melanocytic nevi will be reviewed here.
Acquired melanocytic nevi (moles) - UpToDate
Both melanocytes and nevus cells can produce the pigment melanin. Melanocytic nevi may be congenital or acquired. Acquired nevi can be classified as common (banal) or atypical, and there are several additional variants, including halo nevi, blue nevi, and Spitz nevi.
Acquired melanocytic nevi (moles) - UpToDate
Both melanocytes and nevus cells can produce the pigment melanin. Melanocytic nevi may be congenital or acquired. Acquired nevi can be classified as common (banal) or atypical, and there are several additional variants, including halo nevi, blue nevi, and Spitz nevi.
Blue nevus - UpToDate
Acquired melanocytic nevi (moles) …melanocytes are normally still present at the time of birth. Several variants of blue nevi have been described : The common blue nevus typically presents as a solitary, uniformly blue to blue-black, dome-shaped …
Dermoscopy of pigmented lesions of the palms and soles
Oct 9, 2023 · This topic will review the dermoscopic features of melanocytic and nonmelanocytic pigmented lesions of the palms and soles and the dermoscopic criteria for differentiating benign melanocytic nevi from early melanoma.
Overview of benign lesions of the skin - UpToDate
Apr 12, 2024 · The clinical features, diagnosis, and treatment of some acquired benign skin lesions will be discussed here. Benign lesions in the newborn and infant are discussed separately. Malignant neoplasms of the skin are also discussed separately.
Medline ® Abstract for Reference 21 of 'Acquired melanocytic nevi ...
Melanocytic nevi are a strong phenotypic marker of cutaneous melanoma risk. Changes in nevi during childhood and adolescence make these prime periods for studying nevogenesis. Insights gained by the study of nevi in childhood have implications for …
Spitz nevus and atypical Spitz tumors - UpToDate
Jul 21, 2022 · INTRODUCTION. Spitz nevus (or Spitz tumor) is an uncommon melanocytic lesion composed of large epithelioid and/or spindled cells. It typically presents in childhood or adolescence as a sharply circumscribed, dome-shaped, pink-red papule or plaque most commonly located on the face or lower extremities ( picture 1 ).
Congenital and inherited hyperpigmentation disorders - UpToDate
Feb 8, 2024 · This topic will review the approach to the patient with congenital and inherited hyperpigmentation disorders. Incontinentia pigmenti, pigmentary mosaicism, and acquired disorders of pigmentation, including melasma, are discussed separately. (See …
nevus - UpToDate
Acquired melanocytic nevi (moles) … melanocyte known as a " nevus cell." The two major differences between ordinary melanocytes that reside in the basal layer of the epidermis and nevus cells are: Nevus cells cluster as nests within the lower …