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Muscle tears and PMR and/or pred?
Polymyalgia Rheumatica (PMR) | Last Active: Jun 10, 2023 | Replies (19)Comment receiving replies
I have not had a feeling of muscles tearing but I have had sudden stabbing pains in my biceps and thigh. This leads me to a question which maybe I should have started another thread on. Someone, I think here and perhaps one of the moderators, posted a link to some new research on the cause of PMR. The research showed that it may be inflammation of the sheaths around the muscles rather than in tendons and bursae that leads to PMR. I should have saved the link but did not. If that's the case it could explain a tearing sensation and also many of the symptoms I have had that seem muscular, not in the joints.
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@linda7 "UP to date" is a site that a colleague's father , who is VA doctor, shared with me . This section mentions hamstrings twice :: i wonder how invariable is the bilateral nature of all of these findings.
Clinical manifestations and diagnosis of polymyalgia rheumatica::
Imaging findings at the shoulders include subdeltoid/subacromial bursitis and biceps tenosynovitis. Bilateral subdeltoid/subacromial bursitis is an imaging hallmark of PMR; a meta-analysis of four ultrasound (US) studies found this abnormality in 66 percent (95% CI 36-87 percent) of patients [23]. At the hips, PET studies have demonstrated increased uptake of 18F FDG at the greater trochanters and ischial processes, attributed to bursitis, iliopectineal and iliopsoas bursitis, and hamstring tendinitis. MRI and PET CT have shown evidence for interspinous bursitis in the cervical and lumbar spine (image 1). Glenohumeral and hip joint effusions are less frequently observed.
Upper-extremity symptoms in PMR thus result from biceps tenosynovitis, subdeltoid/subacromial bursitis, cervical interspinous bursitis, and, to a lesser extent, glenohumeral synovitis, while pelvic girdle symptoms arise from involvement of various bursae about the hip, hamstring tendinitis, lumbar interspinous bursitis, and hip synovitis.