Distal intersection tenosynovitis of the wrist: a lesser-known extensor tendinopathy with characteristic MR imaging features.

Objective: To present the MRI imaging findings of extensor tenosynovitis at the distal intersection or crossover between the second (extensor carpi radialis longus (ECRL) and brevis (ECRB)) and third (extensor pollicis longus (EPL)) extensor compartment tendons, and the anatomical details that may play a role in the pathogenesis of this condition.

Design And Patients: The imaging studies and clinical records of five patients (three females and two males, with ages ranging between 22 and 78 years; mean age, 49 years) presenting with pain on the dorsal and radial aspect of the wrist were reviewed by two musculoskeletal radiologists in consensus. Three cases were identified serendipitously during routine clinical reading sessions; a follow-up computerized database search for additional cases reported in the prior two years yielded two additional cases.

Unsuspected lower extremity deep venous thrombosis simulating musculoskeletal pathology.

Objective: The purpose of this study was to highlight the critical role that MRI may play in diagnosing unsuspected lower extremity deep venous thrombosis and to stress the importance of scrutinizing MRI studies of the lower extremity showing apparently non-specific muscle edema for any evidence of intramuscular venous thrombosis.

Design And Patients: The imaging studies of four patients in whom deep venous thrombosis was unsuspected on clinical grounds, and first diagnosed on the basis of MRI findings, were reviewed by two musculoskeletal radiologists in consensus. In all four patients the initial clinical suspicion was within the scope of musculoskeletal injuries (gastrocnemius strain, n=3; ruptured Baker cyst, n=1), explaining the choice of MRI over ultrasound as the first diagnostic modality.

Flexor carpi radialis tendinopathy: spectrum of imaging findings and association with triscaphe arthritis.

Objective: To present the spectrum of pathology affecting the flexor carpi radialis (FCR), and its anatomical, functional and clinical relationship with conditions affecting the triscaphe or scapho-trapezium-trapezoid (STT) compartment, and particularly osteoarthritis.

Design: The study comprised two men and four women aged between 23 and 79 years (mean age, 49 years). Two musculoskeletal radiologists in consensus evaluated MRI findings.