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A rheumatoid nodule is a lump of tissue, or an area of swelling, that appears on the exterior of the skin usually around the olecranon (tip of the elbow) or the interphalangeal joints (finger knuckles), but can appear in other areas. [1]
About 20% of people with rheumatoid arthritis develop rheumatoid nodules, which are linked to more severe erosive disease in those patients. [2] The nodules are more common in men, typically manifest in the fifth decade of life, and are primarily found on extensor surfaces like the backs of the fingers and elbows, though they can occur anywhere.
The characteristics of dyshidrosis are itchiness of the palms or soles, followed by the sudden development of intensely itchy small vesicles on the sides of the fingers, the palms or the feet, [7] [11] sometimes described as having a "tapioca pudding" appearance. [12] The vesicles may develop in waves. [4]
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Heberden's nodes typically develop in middle age, beginning either with a chronic swelling of the affected joints or the sudden painful onset of redness, numbness, and loss of manual dexterity. This initial inflammation and pain eventually subsides, and the patient is left with a permanent bony outgrowth that often skews the fingertip sideways.
Prurigo nodularis (PN), also known as nodular prurigo, is a skin disorder characterized by pruritic , nodular lesions, which commonly appear on the trunk, arms and legs. [1] Patients often present with multiple excoriated nodules caused by chronic scratching.
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Fibroma of tendon sheath is a benign tumor that presents as a small subcutaneous nodule that slowly increases in size. [1] This is a notably uncommon condition. According to case report literature, the tumors often have a multinodular growth pattern, with individual nodules being composed of bland, slender, spindle-shaped cells (myofibroblasts) in a dense, fibrous matrix.” [2] A common ...