Korean J Dermatol.
1979 Aug;17(4):295-299.
Two Cases of Urticaria Pigmentosa
Abstract
- Urticaria pigmentosa is a manifestation of mastocytosis characterized by persistent pigmented cutaneous lesions of various size that tend to urticate upon mechanical or chemical irritation, The disease is most common in ehildren and skin lesions after appear within 1 or 2 months of birth. Urticaria pigmentosa in children begins with disseminated eruption (buIlou type) or with a solitary tumor or nodule(solitary type). One case. of solitary type and one case of bullous type are reported in this paper. The one case is a solitary type of urticaria pigmentosa in 1 1/2 years old male who had dark brownish pigmented nodule(2.5 1cm) on right hack since 1 year ago. Tie other is a bullous type of urticaria pigmentousa in 6 months old male who had generalizcd. bulla, hemorragic bulla with crust & millium since 4 months ago. Dignosis was confirmed by histologic findings in which showed infiltration of mast cells in upper nr entire dermis arui rnetachromatic granules in mast cell on toluidine blue stain. Literature were reviewed briefly.
