What does granulomata mean?
Granulomata are localized collections of immune cells that develop when inflammation persists or repeatedly recurs. They may occur in response to infections such as tuberculosis, in autoimmune and inflammatory disorders such as sarcoidosis, or around foreign material. In pathology, the word refers both to individual lesions and, collectively, to multiple such masses within an organ or tissue. Granulomata are recognized by characteristic patterns of immune cells, often including epithelioid cells and multinucleated giant cells, although their exact appearance depends on the underlying cause. The singular is granuloma, while granulomata is the standard plural. In everyday clinical English, granulomas is also widely used, but granulomata remains especially common in formal pathology writing. The term is important because identifying granulomata can narrow the possible causes of disease and guide further diagnostic investigation. It is also linked etymologically to the word grain, reflecting the traditionally described granular appearance of these tissue masses.
nounGranulomata are localized masses of immune cells formed in response to persistent inflammation, infection, foreign material, or autoimmune disease. The term is used especially in pathology for the characteristic lesions of conditions such as tuberculosis and sarcoidosis.
- Localized masses of immune cells produced by chronic inflammation, including granulomatous inflammation caused by infections, autoimmune conditions, foreign bodies, and other chronic stimuli.
"A biopsy revealed multiple noncaseating granulomata in the lung tissue."
"The scan showed several pulmonary granulomata that were subsequently evaluated by biopsy."
"Pathologists described widespread granulomata throughout the liver."
The standard plural of granuloma. It may refer to several separate lesions or to multiple lesions distributed within a tissue or organ.
"Examination of the tissue revealed numerous granulomata."
One granuloma becomes many granulomata—and the name comes from their grain-like appearance.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does granulomata come from?
Granulomata comes through New Latin from the Greek granouloma, a diminutive associated with granē, meaning “grain.” The underlying Latin word granum, also meaning “grain,” is the source of related forms such as granule, granular, and granation. The medical sense developed as a name for a small, grain-like mass of tissue produced by chronic inflammation.
Related word forms
How granulomata is actually used
This is a formal medical and pathological term. Although granulomas is also common in modern clinical writing, granulomata is a standard plural form and is especially frequent in pathology and pathology literature. The word is not typically used for benign lumps in general speech.
Easily confused with granulomata
Granuloma is the singular form, while granulomata is the standard plural used in medical writing.