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J Korean Rheum Assoc. 2010 Mar;17(1):81-85. Korean. Case Report. https://doi.org/10.4078/jkra.2010.17.1.81
Sohn IW , Bang SY , Kim D , Kim TH .
Division of Rheumatology, Department of Internal Medicine, The Hospital for Rheumatic Disease, Hanyang University College of Medicine, Seoul, Korea. thkim@hanyang.ac.kr
Abstract

Back pain is the most common symptom of ankylosing spondylitis (AS). The aggravation of back pain in AS patients is usually thought to be a flare-up of the disease activity. We report here on the case of a 31-year-old AS patient with low back pain. The lesions of this patient were unexpectedly diagnosed as metastatic spinal tumor due to cholangiocarcinoma. In a patient with AS, an acute aggravation of low back pain may be due to other pathologic conditions such as osteoporotic vertebral fracture, vertebral discitis and metastatic bone disease. Therefore, when a patient with AS presents with nonspecific low back pain, a physician should consider the above mentioned conditions.

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