"The aetiology is uncertain, although a localised infectious (viral) or immunological process is suspected. Post-surgical cases, particularly after cervical decompression, have been described 5."
"This syndrome was first described in 1879 by French physician Alix Joffroy (1884-1908) 6,7, however, was popularised with a larger series in 1948 by British neurologists Maurice John Parsonage (1915-2008) and John W Aldren Turner (1911-1980) 3."
"This syndrome was first described in 1879 by French physician Alix Joffroy (1884-1908) 6,7, however, was popularised with a larger series in 1948 by British neurologists Maurice John Parsonage (1915-2008) and John W Aldren Turner (1911-1980) 3."
"There is a male predominance (M:F 2-11.5:1) 1. Patients from 3 months to 85 years old have been reported, but most are between the 3rd and 7th decades of life."
"The presentation is typically quite sudden, with an onset of a painful shoulder girdle and progressive weakness. Symptoms are, however, non-specific and can mimic numerous other much more common conditions such as cervical spondylosis, labral tears with paralabral cyst or other suprascapular notch masses, rotator cuff deficiency, shoulder impingement, calcific tendinitis and adhesive capsulitis 1,2."
"The most striking features of MRI are denervation changes in muscles. Initially, the muscle appears normal. Over the next few weeks, a high T2 signal develops. Gradually, especially in patients with a protracted course, atrophy and fatty infiltration will develop with the increase in T1 signal and decreased muscle bulk. Also later in the course of the disease, muscle wasting without fatty infiltration may be evident."
"History and etymology"
"mass in the suprascapular notch (e.g. ganglion)"