| thyroid nodule | A small circumscribed mass of differentiated tissue associated with the thyroid gland. It can be pathogenic or non-pathogenic. The growth of nodules can lead to a condition of goiter, nodular. most nodules appear between the ages of 30 and 50 years and most are benign. (12 Dec 1998) |
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| enamel nodule | A developmental anomaly in which there is a small nodule of enamel below the cementoenamel junction, usually at the bifurcation of molar teeth. Synonym: enamel drop, enamel nodule, enamel pearl. (05 Mar 2000) |
| enhancing brain nodule | <radiology> Metastases, infection, cysticercosis, histoplasmosis, tuberculosis, non-infectious inflammatory processes, sarcoidosis, multiple sclerosis, primary CNS lymphoma, subacute multiple infarcts see: ring lesions in brain (12 Dec 1998) |
| Lisch nodule | Iris hamartomas typically seen in type 1 neurofibromatosis. Synonym: Sakurai-Lisch nodule. (05 Mar 2000) |
| lymphatic nodule | lymph follicle |
| lymph nodule | Lymphatic follicle, one of the spherical masses of lymphoid cells, frequently having a more lightly staining centre. See: solitary lymphatic follicles, Peyer's patches. Synonym: folliculus lymphaticus, lymph nodule, nodulus lymphaticus. (05 Mar 2000) |