ACQUIRED HEMOPHILIA A IN A PATIENT WITH PEMPHIGUS VULGARIS -CASE REPORT
Abstract
Pemphigus vulgaris is a rare autoimmune disorder involving painful blisters and erosions on the skin and mucous membranes caused by antibodies directed against desmoglein 1 and 3. Acquired hemophilia A (AHA) is a relatively rare coagulation disorder caused by the spontaneous presence of anti-factor VIII immunoglobulin G antibodies (IgG1 and IgG4), known to cause spontaneous clinically significant hemorrhages into the skin and soft tissues in patients with no previous known diagnosis of bleeding disorders. This coagulopathy has been described in conjunction with autoimmune bullous skin diseases, malignancies, and drug reactions. Only a few cases of such interaction have been documented, we herein report a case of a 50-year-old woman with a history of pemphigus vulgaris who has developed extensive ecchymosis on her right arm and right calf. A diagnosis of AHA was made considering the modified coagulation tests. Initiation of treatment with factor VIII led to clinical improvement, however, the patient stopped showing up for further follow-ups.
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