Definition
The nodule is a circumscribed lesion with a relatively spherical shape; it appears similar to a papule, so it is in relief, but involves deeper tissues and exceeds 5 mm in diameter. Moreover, this formation has the characteristic of having a different consistency than that of the surrounding fabric.
A pathological nodule may have an inflammatory origin (eg, chilblains, rheumatoid arthritis, erythema nodosum etc.), infectious or neoplastic. In fact, a nodule can also be the expression of a benign or sometimes malignant tumor; in this sense, it can arise in practically all organs.
Solid and palpable nodules, on the other hand, can form on tendons and muscles as a result of injury or trauma. Examples of dermal or subcutaneous tissue nodules include cysts, lipomas and fibroids.
Possible Causes * of Nodule
- Acne
- Arthritis
- Rheumatoid arthritis
- Arthrosis
- Arthrosis of the Hands
- chalazion
- Breast cancer
- Prostate cancer
- Basal-cell carcinoma (or basalioma)
- Baker cysts
- chondrocalcinosis
- chondroma
- cryptococcosis
- dermatofibroma
- Snap finger
- enchondroma
- Infective endocarditis
- enthesitis
- Verruciform Epidermodysplasia
- Epulis
- Rheumatic fever
- Progressive Oxygenating Fibrodysplasia
- Pendulous Fibroids
- folliculitis
- Geloni
- gonarthrosis
- Goiter
- Annular granuloma
- Pyogenic granuloma
- Achilles tendon inflammation
- Hyperthyroidism
- Histoplasmosis
- Leishmaniasis
- Lipoma
- liposarcoma
- Paget's disease of the nipple
- Peyronie's disease
- Melanoma
- miliaria
- Bowen's disease
- Dupuytren's disease
- Neurofibromatosis
- Morton's neuroma
- snows
- Spitz nevus
- Thyroid nodules
- Eye of partridge
- stye
- osteochondrosis
- Panniculitis
- Kaposi's sarcoma
- Tuberous sclerosis
- synovitis
- Tendinitis
- tenosynovitis
- African trypanosomiasis
- Testicular cancer
- Lung cancer
- Penile cancer
- Thyroid tumor
- Salivary gland tumor
- warts
