[Congenital melanocytic nevi: a study of 23 cases at a health center].
OBJECTIVE
The purpose of this study was to further understand congenital melanocytic nevus.


METHODS
For this purpose, the cases of 1,265 subjects that had consulted a general practitioner and pediatrician in a primary care center were studied.


RESULTS
We found that the prevalence of small congenital melanocytic nevi (SCMN) was 1.8% in the 1,265 subjects examined. The male/female ratio was 9/14 with an age range between 1 and 14 years and a modal interval from 5 to 9 years. The location was preferentially found on the trunk (39.1%). In 29.4% of the prepubertal and 66.6% of the postpubertal subjects the diameter was greater than or equal to 1.5 cm. Raised texture was found in 65.2% and hairy in 34.8%. There was an association between the raised texture and the prepubertal stage.


CONCLUSIONS
We conclude that the prevalence of CMN was 1.8%, with all being SCMN.
García Morán
J I
JI
Centro de Salud de Mota del Cuervo, Cuenca.
Jarabo García
M T
MT
D000293:Adolescent; D017677:Age Distribution; D002648:Child; D002675:Child, Preschool; D003151:Community Health Centers; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009508:Nevus, Pigmented / Q000151:congenital* / Q000453:epidemiology / Q000473:pathology; D015995:Prevalence; D017678:Sex Distribution; D012878:Skin Neoplasms / Q000151:congenital* / Q000453:epidemiology / Q000473:pathology; D013030:Spain / Q000453:epidemiology