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Intrahepatic cholangiocarcinoma (ICC) is the second most common tumor of the liver and accounts for 3% of all gastrointestinal tumors. Bone metastasis due to ICC is extremely rare. In this case report, a patient with pathological clavicle fracture as the first presentation of ICC was reported. A lytic mass causing a fracture in the middle part of the left clavicle was detected in a 75-year-old female patient who had sudden and severe pain in her left shoulder while getting up from her seat. Blood tests were normal except gamma-glutamyl transferase 575 U/L (0-38 U/L), alkaline phosphatase 259 U/L (0-105 U/L), direct bilirubin 5.1 mg/dl (0-0.2 mg/dl) and carcinoembryonic antigen 5.1 ng/ml (0-5 ng/ml). Positron emission tomography (PET-CT) revealed a mass in the liver and metastasis to the proximal femur and peritonei carcinomatosis. Pathological clavicle fracture was treated surgically and liver biopsy was performed by an interventional radiologist in the same session. The pathology result was reported as ICC. During the follow-up of the patient, a pathological proximal femur fracture also occurred. This fracture was also treated with total tumor hip replacement. Metastasis of ICC to the bone is extremely rare and should be kept in mind in the differential diagnosis in patients presenting with pathological bone fracture and liver mass.

Pathological Clavicle Fracture: Initial Presentation of Intrahepatic Cholangiocarcinoma