Nevus Sebaceus
Treatment: If treatment is undertaken, complete surgical excision is the treatment of choice. This not only removes the lesion but also removes the risk of malignant potential. Another approach is…
Nevus Lipomatosus Superficialis
Treatment: These solitary lesions are best excised surgically; this gives the best cosmetic result and the best cure rate. Multiple lesions can be left alone after a diagnosis is made….
Nevus of Ota and Nevus of Ito
Use of the 1064-nm neodymium:yttrium-aluminumgarnet (Nd:YAG) laser has resulted in the most success in treating these lesions, and it can be used in patients of almost any skin type. Q-switching…
Neurofibroma
Histology: Individual neurofibromas have a well-circumscribed, spindle-shaped proliferation within the dermis. No capsule is present. Schwann cell proliferation and proliferation of the axonal components of the nerve are seen. Many…
Melanocytic Nevi: Congenital Nevi
Large congenital nevi present the biggest treatment difficulty because of the high rate of malignant transformation. If possible, serial excisions to remove large nevi are the best option. Tissue expanders…
Melanocytic Nevi: Common Acquired Nevi and Giant Congenital Melanocytic Nevi
Histology: In common acquired melanocytic nevi, the melanocytes are arranged symmetrically in a lateral fashion. They are arranged in nests. The nested melanocytes do not have the typical dendritic appearance…
Melanocytic Nevi: Blue Nevi
Multiple blue nevi can be seen in the Carney complex, also known as the NAME or LAMB syndrome. This complex of clinical findings includes multiple blue nevi, lentigines, ephelides, myxomas,…
Median Raphe Cyst
Histology: The cysts are lined with a pseudostratified or stratified columnar epithelium. The epithelium can closely approximate the appearance of transitional urethral cell epithelium. The lining surrounds a central cavity…
