Korean J Hepatol.  2010 Sep;16(3):325-328. 10.3350/kjhep.2010.16.3.325.

Detection of distant metastasis to skeletal muscle by 18F-FDG-PET in a case of intrahepatic cholangiocarcinoma

• Park SK
• Kim YS
• Kim SG
• Jang JY
• Moon JH
• Lee MS
• Kim BS
• Koh ES
• Park JM

• KMID: 1717329
• DOI: http://doi.org/10.3350/kjhep.2010.16.3.325

Abstract

Intrahepatic cholangiocarcinoma is a rare malignancy that originates from the epithelial cells of the intrahepatic bile ducts. Intrahepatic cholangiocarcinoma can metastasize in lymphatic chains, including the hepatoduodenal ligament, and it often invades adjacent organs or metastasizes to other visceral organs such as the lungs, bones, adrenal glands, and brain. However, distant skeletal muscle metastasis is very rare. Moreover, a metastatic skeletal muscle tumor rarely shows specific symptoms, making it difficult to identify in a routine examination. A 45-year-old man with a chief complaint of right upper quadrant abdominal pain was admitted to our hospital. Abdominal ultrasound and computed tomography with contrast enhancement showed a malignant mass in the right hepatic lobe, and 2-[18F] fluoro-2-deoxy-D-glucose positron-emission tomography revealed distant skeletal muscle metastases in the thorax and buttock. The patient underwent an ultrasound-guided percutaneous needle biopsy for the metastatic low-echo masses in the skeletal muscle.

Keyword

Intrahepatic cholangiocarcinoma; Distant metastasis; 18F-FDG PET

MeSH Terms

Bile Duct Neoplasms/diagnosis/radionuclide imaging/secondary
Cholangiocarcinoma/diagnosis/radionuclide imaging/secondary
Fluorodeoxyglucose F18/*diagnostic use
Humans
Liver Neoplasms/*diagnosis/pathology/radionuclide
Male
Middle Aged
Muscle Neoplasms/diagnosis/*radionuclide imaging/secondary
Positron-Emission Tomography
Radiopharmaceuticals/*diagnostic use
Tomography, X-Ray Computed