Gastric varices are seen in 18% to 78% of patients with portal hypertension. Although the incidence of bleeding from gastric varices is relatively low (10-36%), when it does occur it is massive and increases patient mortality. Treatment modalities of gastric varices are endoscopic treatment (sclerotherapy, band ligation, etc.), transjugular intrahepatic protosystemic shunt (TIPS) and balloon-occluded retrograde transvenous obliteration (B-RTO). Among these, endoscopic obliteration with Histoacryl® is the main treatment of gastric variceal bleeding. The success rate greater than 80% for initial hemostasis has been achieved with N-butyl-2-cyanoacrylate injection.6 The accompanying symptoms of Histoacryl® injection are fever, chest pain, ulcers, bleeding, and abdominal pain. Rarely, but fatal complications are embolism, infarction, septic shock, and rebleeding.6,7 To our knowledge, this is the first report of an adrenal abscess occurring after a Histoacryl® injection for variceal bleeding.
Abscesses in the adrenal gland are extremely rare in adults, and the majority are associated with postoperative complications following urogenital or obstetric surgery, or infection in the immuno-compromised host.4,5 Symptoms of adrenal abscess are fever, chills, and abdominal pain. The diagnosis of adrenal abscess is based mainly on imaging studies such as ultrasonography, CT, and magnetic resonance imaging,8,9 and treatment is based on surgical drainage or adrenalectomy.8,9 In these cases, the patient's symptoms were fever, chills, and costovertebral angle tenderness, and the diagnosis was made by abdominal CT imaging. Treatment for the patients was undertaken by drainage, surgery, or percutaneous methods.
The routes for gastric variceal drainage are a gastro-renal shunt or a gastro-caval shunt. In our cases, the adrenal abscesses developed 4-6 months after the Histoacryl® injection. The reason why adrenal abscesses after Histoacryl® injection was so delayed is that insufficient drainage and stasis of adrenal vein blood by the Histoacryl® material made a significant contribute to it.
When the patient who had been injected previous Histoacryl® for the treatment of variceal bleeding has fever, the evaluations for an unusual complication such as adrenal abscess are recommended.