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. 2021 Jul 6;51(3):557–564. doi: 10.1007/s00256-021-03857-x

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© The Author(s) 2021, corrected publication 2021

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Fig. 1 — Schematic diagram illustrating the 3 types of ERSA lesions encountered. The grey shading indicates the location of increased signal intensity on fluid sensitive images. a. Type A lesion with peritendinous ovoid region of increased signal. b. Type B lesion with subfascial ring of increased signal. c. Type C lesion with peritendinous ovoid region and subfascial ring of increased signal