Spitz nevus with Features of Clark Nevus, So-Called SPARK Nevus: Case Series Presentation with Emphasis on Cytological and Histological Features

Background: SPARK nevus represents a little-known and characterized entity, with few case series available in the literature. Methods and results: we present a case series of 12 patients (6 F and 6 M) between January 2005 and December 2020 and conduct a review of the current literature. Ten articles were selected on the basis of the adopted inclusion criteria and the PRISMA guidelines. Conclusions: The definition of histopathological and dermoscopic criteria are important to allow for an agreement to be reached among dermopathologists, and for the development of a consensus on higher case studies. To our knowledge, there are not many case series in the literature, and ours is part of the attempt to increase the knowledge of an entity that remains little-known and characterized.

SPITZ NEVUS (JUVENILE MELANOMA) IN THE PEDIATRICIANS PRACTICE: CLINICAL PICTURE, DIAGNOSIS, PROGNOSIS AND TREATMENT

Spitz nevi (epithelioid and spindle-cell nevi) are a special group of melanocytic neoplasms with a specific clinical, dermatoscopic and histological picture. There are typical and atypical Spitz nevus. The typical Spitz nevus is more common in pediatric practice and has a benign course. Of particular interest are atypical forms that combine the characteristics of a typical Spitz nevus and melanoma. The article presents an analysis of the clinical picture, dermatoscopic, immunohistochemical, histological and genetic characteristics in various forms of Spitz nevus. The existing classification according to the metastasis risk degree is presented. The last recommendations on the tactics of managing patients with this nosology are discussed with examples of original observations.