|LETTER TO EDITOR
|Year : 1994 | Volume
| Issue : 1 | Page : 57-58
Atopic dermatitis of scalp
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Sandipan D. Atopic dermatitis of scalp. Indian J Dermatol Venereol Leprol 1994;60:57-8
To the Editor,
Though diffuse scaling of the scalp in children and adults with atopic dermatitis (AD) is a result of subacute dermatitis due to Pityrosporum ovale :  frank eczema over scalp as a manifestation of AD is certainly very rare. Eczema restricted to scalp alone has so far not been mentioned in standard texts on atopic dermatitis. 
We recently observed a patient with chronic eczematous lesions over scalp in whom diagnosis of atopic dermatitis of scalp was made.
A 9-year-old boy presented with moderately pruritic oozy lesions restricted to scalp of 3 years duration. There was history of remissions and relapses during the course of the disease. No personal or family history of atopy was available. Examination revealed eczematous lesions restricted to scalp. Retroauricular and nasolabial folds were spared. The child in addition had DennieMorgan infraorbital folds, peri orbital darkening, pityriasis alba, xerosis and keratosis pilaris.
A provisional diagnosis of AD of scalp was made. Other possibilities considered were infectious eczematoid dermatitis (IED) and seborrhoeic dermatitis. A chronic course of the disease with frequent relapses and remissions and lack of an infective focus as primary lesion substantially ruled out the possibility of IED. Seborrhoeic dermatitis was excluded as it probably does not occur at this age; sparing of other seborrhoeic areas of the body and absence of greasy scales.
Though to diagnose atopic dermatitis, constellation of 3 basic and 3 minor criteria have to be there, it is not always so. The above patient did not had 3 basic features but still a diagnosis of AD was made. In such a situation, minor criteria come to rescue. The patient fulfilled 5 minor criteria.
| References|| |
|1.||Kieffer M, Bergbrant I M, Faergemann J, et al. Immune reactions to Pityrosporum ovale in adult patients of atopic and seborrheic dermatitis. J Am Acad Dermatol 1990; 22 739-42. |
|2.||Rajke G. Essential aspects of atopic dermatitis. Berlin : Springer-Verlag, Inc., 1989. |
|3.||Hanifin J M, Rajka G. Diagnostic features of atopic dermatitis. Acta Dermatol Venereol 1980; 92 (Suppl) : 44-7. |