nodule

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Related to subcutaneous nodules: rheumatoid nodules

nodule:

see concretionconcretion,
mass or nodule of mineral matter, usually oval or nearly spherical in shape, and occurring in sedimentary rock. It is formed by the accumulation of mineral matter in the pore spaces of the sediment, usually around a fossil or fossil fragment acting as a nucleus.
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nodule

[′näj·ül]
(anatomy)
A small node.
A small aggregation of cells.
(botany)
A bulbous enlargement found on roots of legumes and certain other plants, whose formation is stimulated by symbiotic, nitrogen-fixing bacteria that colonize the roots.
(geology)
A small, hard mass or lump of a mineral or mineral aggregate characterized by a contrasting composition from and a greater hardness than the surrounding sediment or rock matrix in which it is embedded.
(medicine)
A primary skin lesion, seen as a circumscribed solid elevation.

nodule

1. any of the knoblike outgrowths on the roots of clover and many other legumes: contain bacteria involved in nitrogen fixation
2. Anatomy any small node or knoblike protuberance
3. a small rounded lump of rock or mineral substance, esp in a matrix of different rock material
References in periodicals archive ?
Lupus profundus is a rare presentation of LE and often presents as multiple subcutaneous nodules or plaques involving characteristic sites such as the upper arms, shoulders, buttocks, or face.
At week 29 (12 weeks after discontinuing treatment) no subcutaneous nodules were observed (Fig 4).
She was diagnosed with calciphylaxis after she presented with sensory alterations, mottled skin lesions and subcutaneous nodules on her abdomen that evolved to painful necrotic ulcers.
Preoperative aspect: multiple subcutaneous nodules within the scrotal wall.
Major Finding: In 23,327 patients with RA, the presence of subcutaneous nodules was found to confer a 44% increase in the risk of cardiovascular disease (hazard ratio, 1.
Photographs of the foot show multiple draining subcutaneous nodules, with a characteristic yellow powdery substance on the skin surface (Figure 5).
Physical examination revealed matlike telangiectasias on the patient's face, lips, and hands (Figure 1), hard subcutaneous nodules on fingers that appeared edematous and tight (Figures 2 and 3), and a loud P2 component on cardiac auscultation.
repens worms cause subcutaneous dirofilariasis, characterized by the development of benign subcutaneous nodules that mimic skin carcinomas (1), and ocular dirofilariasis in orbital, eyelid, conjunctival, retroocular, and intraocular locations (2).
Tumors are well-circumscribed, dermal to subcutaneous nodules composed of several components, including basaloid proliferation, shadow cells, dystrophic calcifications, and foreign-body giant-cell reactions (figure 1).
In contrast to SAFMs, angiomyxomas are dermal and subcutaneous nodules, which may contain an epithelial component, and affect any body part, especially the head, neck, and trunk.
Traditional markers of CV risk such as hypertension, diabetes, and hyperlipidemia were important predictors of CV events during follow-up, as were seven markers of RA severity: disease duration greater than 5 years, radiographically evident joint erosions, subcutaneous nodules, prior total joint replacement, a score of 2 or more on the modified Health Assessment Questionnaire, a score of 23 or more on the Clinical Disease Activity Index, and seropositivity for rheumatoid factor.
A physical examination revealed a left scrotal mass and several palpable subcutaneous nodules ranging from 1 cm to 4 cm in diameter on the chest and abdomen, suggesting subcutaneous metastatic lesions.

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