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KMID : 0032220230350010061
Annals of Dermatology
2023 Volume.35 No. 1 p.61 ~ p.65
Case Report of a Novel Association between Anti-p200 Pemphigoid and Acquired Haemophilia A
Koh Xuan Qi

Tan Kong Bing
Schmidt Enno
Zillikens Detlef
Chandran Nisha Suyien
Abstract
Anti-p200 pemphigoid is an uncommon subepidermal autoimmune bullous disease that, unlike many other autoimmune bullous diseases, has not previously been associated with hematological diseases. The diagnosis of anti-p200 pemphigoid in a patient with congruent clinical features requires the demonstration of subepidermal blistering, with linear deposition of immunoglobulin (Ig) G and/or C3 at the dermoepidermal junction on direct immunofluorescence, and a floor-binding pattern on indirect immunofluorescence. In addition, the detection of antibodies against p200 antigen via immunoblotting is ideal but not readily accessible in many facilities, leading to a potential under-recognition and under-diagnosis of this condition. In this case report, we describe a 53-year-old gentleman with recently diagnosed acquired hemophilia A who developed a concurrent vesiculobullous eruption and was evaluated to have anti-p200 pemphigoid. Both of his conditions were controlled with immunosuppression via prednisolone and cyclophosphamide. While we acknowledge the contemporaneous occurrence of both diseases in this patient may be a mere coincidence, it is important to recognize the possibility of this association given the potential clinical significance. Whether the activity of one disease parallels the other will require further evaluation.
KEYWORD
Blister, Dermatoses, Factor VIII, Hemophilia, Pemphigoid
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