Related Experiment Video
Updated: Jan 14, 2026

Granulocyte-dependent Autoantibody-induced Skin Blistering
Published on: October 12, 2012
Acquired hemophilia A in an elderly female with bullous pemphigoid: Case report
1Department of Endocrinology and Hematology, Hangzhou Third People's Hospital, Hangzhou City, Zhejiang Province, China.
Rationale:
Acquired hemophilia A (AHA) is a rare but life-threatening bleeding disorder, necessitating enhanced recognition in patients with concomitant autoimmune diseases.
Patient Concerns:
A 91-year-old female with bullous pemphigoid presented with spontaneous subcutaneous bleeding and prolonged activated partial thromboplastin time.
Diagnoses:
Laboratory investigations revealed a decrease in factor VIII activity to 6.4%, confirming the diagnosis of bullous pemphigoid-associated AHA.
Interventions:
The patient was subjected to monotherapy with glucocorticoids and supportive hemostatic measures.
Outcomes:
Coagulation parameters normalized within 1 month, and no severe complications occurred.
Lessons:
This case highlights the importance of considering AHA in elderly patients with autoimmune diseases who present with unexplained bleeding. An individualized treatment strategy may improve clinical outcomes.

