OBJECTIVES: To describe the histological changes in acute enthesopathy in early spondyloarthropathies (SpA). METHODS: Clinically evident acute enthesopathy was confirmed by magnetic resonance imaging and ultrasonography in four cases of plantar fasciitis and one case of patellar tendon enthesitis. Ultrasound guided biopsy of insertional points was carried out with a Jamshedi needle. Control tissue was obtained from two subjects undergoing spinal grafting surgery. Standard histochemistry and immunohistochemistry analysis using the avidin-biotin immunoperoxidase complex method employing markers against CD3, CD8, CD34, and CD68 was used to determine cellular infiltrates at the insertion point. RESULTS: The enthesis architecture was abnormal in the SpA group, with increased vascularity and cellular infiltration compared with normal subjects. The predominant infiltrating cell at the enthesis fibrocartilage was the macrophage, but there was a paucity of lymphocytes at the insertion point. CONCLUSION: These preliminary findings have implications for a better understanding of the pathology in early SpA.
OBJECTIVES: To describe the histological changes in acute enthesopathy in early spondyloarthropathies (SpA). METHODS: Clinically evident acute enthesopathy was confirmed by magnetic resonance imaging and ultrasonography in four cases of plantar fasciitis and one case of patellar tendon enthesitis. Ultrasound guided biopsy of insertional points was carried out with a Jamshedi needle. Control tissue was obtained from two subjects undergoing spinal grafting surgery. Standard histochemistry and immunohistochemistry analysis using the avidin-biotin immunoperoxidase complex method employing markers against CD3, CD8, CD34, and CD68 was used to determine cellular infiltrates at the insertion point. RESULTS: The enthesis architecture was abnormal in the SpA group, with increased vascularity and cellular infiltration compared with normal subjects. The predominant infiltrating cell at the enthesis fibrocartilage was the macrophage, but there was a paucity of lymphocytes at the insertion point. CONCLUSION: These preliminary findings have implications for a better understanding of the pathology in early SpA.
Authors: Yeon Joo Kim; Na Young Kim; Min Kyung Lee; Hyo Jin Choi; Han Joo Baek; Chang Hoon Nam Journal: Exp Mol Med Date: 2010-05-31 Impact factor: 8.718
Authors: Martina Karpitschka; Patrizia Godau-Kellner; Herbert Kellner; Annie Horng; Daniel Theisen; Christian Glaser; Bernhard Brandlhuber; Maximilian Reiser; Sabine Weckbach Journal: Eur Radiol Date: 2013-03-15 Impact factor: 5.315
Authors: Jeffrey H Weinreb; Chirag Sheth; John Apostolakos; Mary-Beth McCarthy; Benjamin Barden; Mark P Cote; Augustus D Mazzocca Journal: Muscles Ligaments Tendons J Date: 2014-05-08