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  • Title: Different abdominal scintigraphy pattern in patients with ulcerative colitis, Crohn's disease and seronegative spondylarthropathies.
    Author: Alonso JC, López-Longo FJ, Lampreave JL, González CM, González M, Almoguera I, Carreño L.
    Journal: Br J Rheumatol; 1995 Oct; 34(10):946-50. PubMed ID: 7582701.
    Abstract:
    The aim was to analyse the abdominal scintigraphy pattern in patients with seronegative spondylarthropathy (SSp), ulcerative colitis (UC) and Crohn's disease (CD). A total of 117 patients with defined histological lesions of inflammatory bowel disease (IBD) (68 UC and 49 CD), 32 patients with active SSp [European Spondylarthropathy Study Group (ESSG) 1991 criteria] without clinical evidence of IBD and 21 controls without IBD or SSp were studied. All patients with SSp and controls received similar doses of non-steroidal anti-inflammatory drugs. Abdominal scintigraphy images were obtained at 30 and 120 min after injection of 99m-technetium hexamethyl propylene amine oxime (99mTc-HMPAO)-labelled leucocytes. The 99mTc-HMPAO-labelled leucocyte scan was positive in 17 patients with SSp (53.1%), 45 patients with UC (66.1%) and 33 patients with CD (67.3%). Rectum and sigma involvement was more frequent in patients with UC (68.8%) than in patients with SSp (23.5%) or CD (33.3%) (P < 0.05) [odds ratios (OR): 7.1 and 4.4, respectively]. Terminal ileum involvement was more frequent in patients with CD (63.6%) than in patients with SSp (23.5%) or UC (8.8%) (P < 0.05) (OR: 5.6 and 17.9, respectively). The 99mTc-HMPAO-labelled leucocyte scan shows an increased uptake in patients with SSp without evidence of IBD. Perhaps these patients represent one end of the spectrum of IBD, but rectal and terminal ileum involvement were less frequent in patients with SSp than in patients with UC or CD.
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