Saudi Journal of Pathology and Microbiology (SJPM)
Volume-2 | Issue-08 | 258-268
Original Research Article
A Clinicopathologic Study of Melanocytic Neoplasms
Niharika Shah, R.C.Adhikari, Shovana Karki, Deebya Raj Mishra, Dr. Nidhi Shah
Published : Sept. 30, 2017
Abstract
This study reports baseline information about melanocytic neoplasms in
TUTH. The objective was to study the histological spectrum of melanocytic nevi and
melanoma, and to make a clinicohistopathological correlation. 50 consecutive cases of
melanocytic neoplasms were studied from December 2010 to December 2011.Of the
50 cases, 12 (24%) were malignant melanoma and 38 (76%) were melanocytic nevi.
Cutaneous melanocytic nevi was the commonest, 30/38, (79%) followed by 8/38
(21%) conjunctival nevi. Head and neck was the commonest site (25/38) and the
mean age at presentation was 32.66 +16.19 years, the female to male ratio being
5.3:1.In melanoma, 4 (33%) were extracutaneous, of the cutaneous, 2 (17%) were
acral lentiginous, and 6 (50%) were nodular. Mean age was 50 + 16.99 years with an
equal female to male ratio. Commonest site was extremities (6/8) in cutaneous and
choroid in extracutaneous (2/4) lesions. Concordance between clinical and
histopathological diagnosis were found in 30/50 (60%) cases. Melanocytic nevi are
quite common in females, melanoma is rare, affecting men and women equally. In our
context melanoma likely represents a sporadic disorder. Difference from the western
societies is the common occurrence of nodular melanoma here and the topographical
distribution.