Volume : III, Issue : IX, September - 2014

Congenital nevus–A rare case Report

Dr. K. R. Umadevi, Dr. Ezhilvizhi. A

Abstract :

Congenital nevi are benign nevomelanocytic proliferations present at birth.Small congenital nevi are defined as those less than 1.5 cm in their largest diameter, medium–sized congenital nevi as those 1.5 to 19.9 cm, and large or giant congenital nevi as those greater or equal to 20 cm. 1% of the newborns have a biopsy–proven nevo melanocytic nevus. However, giant congenital nevi are rare with an incidence of approximately 1 in 20,000 births. Here we present 35 years old man with a swelling from childhood. Clinically, congenital nevi are round to oval in shape with regular, smooth, and well–demarcated border. Their clinical appearances may change with age. In our case swelling was round to oval with 2 satellite nodules .As the child grows, the nevi become progressively darker with uniform own to dark own or black color and they acquire long, coarse, darkly pigmented hairs. Occasionally, they may show considerable variation in pigment color within the background color, irregular border, and sometimes nodule formation. Such changes should be always evaluated for any malignant transformation. The lifetime risk of melanoma for patients with giant congenital nevi ranges from 5% to 10%. The risk is greatest between the ages of 5 and 10 years. The issue of malignant transformation of small congenital nevi is very controversial. Currently, there exists no consensus regarding their increased risk of developing melanoma or their management. However, many authors believe that small congenital nevi may be precursors for at least some cases of cutaneous melanoma but in our case no malignant changes were identified

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Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

Dr.K.R.Umadevi, Dr.Ezhilvizhi.A Congenital Nevus- A Rare Case Report International Journal of Scientific Research, Vol : 3, Issue : 9 September 2014

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