BACKGROUND Bronchobiliary fistulas (BBFs) are abnormal communications between the biliary tract and bronchial tree. Transcatheter arterial chemoembolization (TACE) is a widely employed treatment for advanced hepatocellular carcinoma (HCC). While TACE is generally considered safe, there have been reports of severe complications. This case report is about a 68-year-old man who developed a BBF 6 months after undergoing TACE for HCC. CASE REPORT A 68-year-old man was diagnosed with HCC and underwent TACE at a local medical department. Two months after TACE, he presented with a liver abscess, which was drained and catheterized. Subsequently, the patient was transferred to our hospital. Initial MRI revealed abscesses in the right hepatic lobe extending into the lung cavity. Intrahepatic catheter replacement was performed. Six months after TACE, the patient developed cough and yellow sputum. Subsequent MRI confirmed smaller lung and liver abscesses, along with a BBF. Endoscopic retrograde cholangiopancreatography (ERCP) and percutaneous catheter replacement were conducted, closing the BBF with a covered stent. Despite drainage, antibiotics, and nutritional support, the patient's condition deteriorated. Transition to hospice care was initiated, and the patient died due to sepsis and multiple organ failure. CONCLUSIONS This case highlights the importance of obtaining a comprehensive patient history when a patient has bile in the sputum, and discusses the rare but previously reported BBF as a complication of TACE for HCC. The presence of bile collections in the lungs and liver can result in tissue necrosis, potentially leading to chronic infection, emphasizing the need for early diagnosis and management.