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Year : 2016  |  Volume : 17  |  Issue : 1  |  Page : 32-34

Pretibial dystrophic epidermolysis bullosa pruriginosa: A rare case report in a child with low intelligent quotient

1 Department of Pathology, JSS Medical College and Hospital, JSS University, Mysore, Karnataka, India
2 Department of Dermatology, Institute of Applied Dermatology, Kasargod, Kerala, India

Correspondence Address:
B Vijaya
Department of Pathology, JSS Medical College and Hospital, JSS University, Mysore, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2319-7250.173160

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Dystrophic epidermolysis bullosa (DEB), a rare form of EB, is characterized by defects in Type VII collagen which is encoded by COL7A1 gene located on chromosome 3p21. A 12-year-old female with low intelligent quotient presented with intensely pruritic multiple violaceous papules which were coalescent at areas on both the shins. Histopathological examination showed epidermis displaying focal thinning. A subepidermal cleft was seen beneath the basement membrane zone. The dermis showed a linear array of keratinous cysts with intervening diffuse lymphohistiocytic infiltrate. Features were suggestive of pretibial DEB. Since it was associated with intense itching, the lesion was termed as pretibial DEB pruriginosa which has combined elements of exclusive pretibial lesions and intense itching. An appropriate clinical history and increased awareness of histopathological features will enable earlier diagnosis and suitable management.

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