We herein report a 76-year-old man with acquired hemophilia A (AHA) who
developed gallbladder rupture due to Ceftriaxone (CTRX)-associated
pseudolithiasis. The patient was admitted for an examination of systemic
subcutaneous bleeding. A blood test showed a prolonged activated partial
thromboplastin time and sequentially revealed low factor VIII activity
(<1%) and a high factor VIII inhibitor level of 143 BU/mL.
The patient was thus diagnosed with AHA. After admission, he developed a
high-grade fever and was administered intravenous CTRX, considering the
possibility of psoas abscess or cellulitis. Although his high-grade
fever was improved, computed tomography incidentally showed a
high-density lesion in the gallbladder, suggestive of CTRX-associated
pseudolithiasis without clinical symptoms. Despite cessation of CTRX,
the pseudolithiasis never disappeared, and the patient suddenly died
after rapid progression of abdominal bloating. An autopsy revealed that
the gallbladder was severely swollen and had ruptured with hemorrhaging
because of hemorrhagic cholecystitis, caused by CTRX-associated
pseudolithiasis with AHA. Our case demonstrated that CTRX-associated
pseudocholelithiasis can unexpectedly induce gallbladder hemorrhaging
and rupture in a patient with a bleeding diathesis, including AHA.
CTRX-associated pseudocholelithiasis can cause a fatal outcome in
patients with a bleeding disorder, even if CTRX is ceased as soon as
pseudocholelithiasis is detected.