sodium-pertechnetate-tc-99m and Fibromyalgia

Salivary gland scintigraphy allows a non invasive, morphological and functional assessment of parotid and submaxillary salivary glands.. To describe the main features of salivary gland scintigraphy in patients with Sjögren syndrome, rheumatic fibromyalgia and normal controls and compare the results with lip biopsy.. Sixty one normal controls, 66 patients with Sjögren syndrome and 18 patients with rheumatic fibromyalgia were studied. For the diagnosis of Sjögren syndrome and fibromyalgia rheumatica, the Modified European and American College of Rheumatology criteria were used, respectively. Lip biopsies were obtained in 52 patients with Sjögren syndrome. Scintigraphy was done with a gamma camera and computer after the administration of 99mTc-pertechnetate, obtaining images during 30 min and creating time/activity curves. Scintigraphy was classified as normal, with mild or severe alterations.. Scintigraphy was normal in 74% of control subjects and in 26%, it had mild alterations. In 72% of patients with rheumatic fibromyalgia, scintigraphy was normal whereas in 28%, it had mild alterations. In 27% of patients with Sjögren syndrome, scintigraphy was normal, in 27% it had mild alterations and in 46%, severe alterations. There was a positive and significant correlation between pathological alterations of salivary glands and scintigraphic alterations (r = 0.642, p < 0.001).. Severe scintigraphic alterations of salivary glands strongly support the diagnosis of Sjögren syndrome. Mild alterations are non specific and a normal scintigraphy does not exclude the diagnosis.

Topics: Adolescent; Adult; Aged; Aged, 80 and over; Biopsy; Case-Control Studies; Fibromyalgia; Humans; Lip; Middle Aged; Predictive Value of Tests; Radionuclide Imaging; Salivary Glands; Sensitivity and Specificity; Severity of Illness Index; Sjogren's Syndrome; Sodium Pertechnetate Tc 99m

Sixteen patients with primary fibromyalgia syndrome were assessed blindly by multiphase skeletal scintigraphy to detect possible subclinical synovitis and uptake abnormalities at tender point sites. Results were normal in 14 of the 16 patients. Mild and localized abnormalities were found in 2 patients and were possibly due to the trauma of overuse. Our multiphase skeletal scintigraphy study showed that synovitis, other evidence of arthritis, or abnormalities at tender point sites were not increased above normal expectation among our sample of patients studied with fibromyalgia.

Topics: Adolescent; Adult; Bone Diseases; Child; Connective Tissue Diseases; Female; Fibromyalgia; Humans; Male; Radionuclide Imaging; Single-Blind Method; Sodium Pertechnetate Tc 99m; Synovitis; Technetium Tc 99m Medronate