TY - JOUR T1 - Pseudogout or pseudolymphoma? Calcium pyrophosphate deposition disease of the cervical spine: a rare presentation and literature review JF - BMJ Case Reports JO - BMJ Case Reports DO - 10.1136/bcr-2019-231508 VL - 12 IS - 12 SP - e231508 AU - Sanchit Turaga AU - Michael Thomas AU - Lloyd Savy AU - Benjamin E Schreiber Y1 - 2019/12/01 UR - http://casereports.bmj.com/content/12/12/e231508.abstract N2 - Calcium pyrophosphate deposition (CPPD) disease is a crystal arthropathy primarily affecting peripheral joints, most commonly the wrist and the knees. However, CPPD in the cervical spine is a rare entity. This report describes a case of CPPD of the cervical spine which presents with symptoms of neck pain and brachalgia. A 62-year-old woman presented with left-sided upper limb and neck pain. MRI scanning revealed a low signal abnormality within the C6 and C7 vertebrae, and the possibility of lymphoma was raised. The patient was recalled for gadolinium-enhanced scans which showed perivertebral and marrow enhancement. Fine-needle aspirate histology initially suggested a spindle cell tumour or lymphoma. However, CT-guided biopsy showed positively birefringent crystals, confirming CPPD. CPPD of the spine is a rare differential of nerve impingement in the cervical spine when MRI scanning perivertebral signal enhancement. Furthermore, CPPD of the spine can mimic malignancy. ER -