Nodule (medicine)

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In medicine, nodules are solid, elevated areas of tissue or fluid inside or under the skin with a diameter greater than 0.5 centimeters. Nodules may form on tendons and muscles in response to injury. The vocal cords may also develop nodules. Nodules are normally benign and often painless, although they can affect the functioning of the organ.

Vocal fold nodules, thyroid nodules and rheumatoid nodules are examples. Furuncles and Kaposi's sarcomata are known to cause dermatological nodules.

The sexual transmitted disease (STD) gonorrhea is also known for its cause of nodules on the genitalia and mouth for those who are victim to the disease.

Smaller (less than 0.5 cm) elevated soft tissue lesions may be termed papules.

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Tumors (and related structures), Cancer, and Oncology
Benign - Premalignant - Carcinoma in situ - Malignant

Topography: Anus - Bladder - Bone - Brain - Breast - Cervix - Colon/rectum - Duodenum - Endometrium - Esophagus - Eye - Gallbladder - Head/Neck - Liver - Larynx - Lung - Mouth - Pancreas - Penis - Prostate - Kidney - Ovaries - Skin - Stomach - Testicles - Thyroid

Morphology: Papilloma/carcinoma - Adenoma/adenocarcinoma - Soft tissue sarcoma - Melanoma - Fibroma/fibrosarcoma - Lipoma/liposarcoma - Leiomyoma/leiomyosarcoma - Rhabdomyoma/rhabdomyosarcoma - Mesothelioma - Angioma/angiosarcoma - Osteoma/osteosarcoma - Chondroma/chondrosarcoma - Glioma - Lymphoma/leukemia

Treatment: Chemotherapy - Radiation therapy - Immunotherapy - Experimental cancer treatment - List of cancer drugs

Related structures: Cyst - Dysplasia - Hamartoma - Neoplasia - Nodule - Polyp - Pseudocyst

Misc: Tumor suppressor genes/oncogenes - Staging/grading - Carcinogenesis/metastasis - Carcinogen - Research - Paraneoplastic phenomenon - ICD-O - List of oncology-related terms

National Cancer Institute Cancer Treatment Summaries (external)

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