The patient initially had significant clinical and radiologic improvement in the right humerus fracture, abdominal masses and lymphadenopathy. However, at the end of the treatment, she developed right facial numbness, with radiographic evidence of progression in the calvarium, and was started on whole brain radiation therapy. She was a poor candidate for more aggressive chemotherapy, because she was a Jehovah’s Witness and declined blood products. At this time, the patient also reported new, left elbow pain and was referred to the rheumatology clinic.
At the initial rheumatology evaluation, the patient described one month of worsening left elbow pain, without any other associated symptoms. The exam was significant for a warm and swollen left elbow with limited extension. Her other joints were not swollen or tender. She had no palpable tophi.
Her uric acid level was 12.7 mg/dL. An X-ray of the left elbow did not show fracture or lytic lesions. Ultrasound demonstrated a large, partially compressible, anechoic to hypoechoic Doppler-negative collection in the left elbow joint, anteriorly and posteriorly (see Figure 1, & Figures 2 & 3). On longitudinal anterior humero-radial view, a continuous hyperechoic line was present over the hyaline cartilage of the humeral capitellum, which raised suspicion for a double contour (DC) sign (see Figure 1). On anterior transverse view, this linear band was also visible, but was more suggestive of an interface sign (see Figure 2).| ← Previous | | | Next → | Single Page