Magnetic resonance imaging findings in primary amyloidosis-associated arthropathy

Masayuki Miyata, Naoto Sato, Hiroshi Watanabe, Hiromi Kumakawa, Akira Saito, Hiroshi Funabashi, Keiji Iwatsuki, Yuko Hashimoto, Yukio Sato, Reiji Kasukawa

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


The MRI findings of amyloid arthropathy associated with primary amyloidosis are presented here possibly for the first time in the literature. Two types of lesions are noted: (1) capsular and tendon lesions; these regions are thickened, hypointense and enhanced by gadolinium (Gd) on T1 weighted imaging (T1WI), and hyperintense on T2 weighted imaging (T2WI), and (2) periarticular and osseous lesions; these regions appear to be tumor-forming and hypointense on both T1WI and T2WI and are not enhanced by Gd. It is necessary to differentiate these findings from other diseases such as chondrosarcoma, rhabdomyosarcoma and chronic inflammatory lesions such as tuberculosis.

Original languageEnglish
Pages (from-to)313-319
Number of pages7
JournalInternal Medicine
Issue number4
Publication statusPublished - Apr 2000


  • Amyloid
  • Amyloid tumor
  • Amyloidoma
  • Gadolinium (Gd)
  • Magnetic resonance imaging
  • Shoulder pad sign

ASJC Scopus subject areas

  • Internal Medicine


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