Acquired Abnormality
rheumatoid nodule
rheu·ma·toid nod·ule
Subclass of:
Rheumatoid Arthritis
Definitions related to rheumatoid nodule:
  • A well circumscribed lump of tissue, firm to touch, typically non-tender, predominantly occurring as a cutaneous manifestation of rheumatoid arthritis localized to extensor surfaces near joints, but may be internal.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • Subcutaneous nodules seen in 20-30% of rheumatoid arthritis patients. They may arise anywhere on the body, but are most frequently found over the bony prominences. The nodules are characterized histologically by dense areas of fibrinoid necrosis with basophilic streaks and granules, surrounded by a palisade of cells, mainly fibroblasts and histiocytes.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
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