|LETTER TO EDITOR
|Year : 1996 | Volume
| Issue : 4 | Page : 272-273
Becker's naevus on lower limb
Vikram Ravi Singh, Sanjay Singh, SS Pandey
Vikram Ravi Singh
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Singh VR, Singh S, Pandey S S. Becker's naevus on lower limb. Indian J Dermatol Venereol Leprol 1996;62:272-3
| To the Editor,|| |
Becker's naevus is an epidermal naevus of late onset. Though it may first appear in childhood, it is usually first noticed during adolescence. The usual sites of localization are shoulder, anterior chest or scapular region. There are a few reports of Becker's naevus occurring at other sites such as on the face, neck, forearm or wrist, and lower extremity.
An 18-year-old male presented to us with asymptomatic, slowly progressive, dark patches over right knee region and right arm for the last 6 years and 1 year, respectively. On examination, irregular macular brownish hyperpigmentation was seen on an area of about 15 cm x 9 cm over the lateral aspect of right knee and adjoining areas of thigh and leg [Figure:l]. The pigmentation was diffuse towards the centre and there were discrete macules at the periphery. The central portion showed mild hypertrichosis in addition. A few similar but discrete hyperpigmented macules without hypertrichosis could be seen over a small area on the lateral aspect of the middle third of right arm.
Histopathological examination of the biopsy material obtained from the knee region showed slightly hyperkeratotic epidermis with heavily pigmented basal and suprabasal keratinocytes. Interpapillary ridges and dermal papillae were elongated. These features were consistent with the diagnosis of Becker's naevus. This case is being reported for the unusual location of the naevus.
| References|| |
|1.||Atherton DJ. Naevi and other developmental defects. In: Champion RH, Burton JL, Ebling FJG, editors. Textbook of dermatology. London: Blackwell Scientific Publications, 1992:445-526. |
|2.||Copeman PWM, Wilson-Jones EWJ. Pigmented hairy epidermal naevus (Becker). Arch Dermatol 1965;92:249-51. |
|3.||Tymen R, Forestier J-F, Boutet B, et al. Naevus tardif de Becker : a propos d' une serie de 100 observations. Ann Dermatol Venereol 1981;108:41-6. |
|4.||Singh KK, Bhatia PS, Mohan L, Mukhija RD. Becker's naevus on lower extremity. Ind J Dermatol Venereol Leprol 1991;57:316-7. |
[Figure - 1]