tophus

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tophus

 [to´fus] (L.)
1. a chalky deposit of sodium urate occurring in gout; tophi form most often around the joints in cartilage, bone, bursae, and subcutaneous tissue and in the external ear, producing a chronic, foreign-body inflammatory response.
2. dental calculus.
Tophus. Typical appearance of tophi, which are common in chronic gout, shown on an index finger. From Ignatavicius and Workman, 2000.
tophus syphili´ticus syphilitic node.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

to·phus

, pl.

to·phi

(tō'fŭs, tō'fī),
1.
2. A salivary calculus, or tartar.
Synonym(s): gouty pearl
[L. a calcareous deposit from springs, tufa]
Farlex Partner Medical Dictionary © Farlex 2012

tophus

(tō′fəs)
n. pl. to·phi (-fī)
1. A deposit of urates in the skin and tissue around a joint or in the external ear, occurring in gout. Also called chalkstone.
2. A concretion of mineral salts and organic matter deposited on the surface of the teeth.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

tophus

The pathognomonic lesion of gout, which appears grossly when preserved in alcohol or other non-aqueous solution as a nodular mass of white chalky, pasty material composed of crystalline and amorphous urates–eg, monosodium urate monohydrates, surrounded by mononuclear cells, fibroblasts and a foreign body-type giant cell reaction with epithelioid histiocytes. See Gouty toe.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

to·phus

, pl. tophi (tō'fŭs, -fī)
1. See: gouty tophus
2. A salivary calculus, or tartar.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
Enlarge picture
TOPHI: Left and right hands of a patient with multiple deforming gouty tophi
Enlarge picture
TOPHI: Left and right hands of a patient with multiple deforming gouty tophi

tophus

(to'fus) plural.tophi [L., porous stone]
A deposit of sodium biurate in tissues near a joint, in the ear, or elsewhere in individuals with gout.
Synonym: gouty pearl See: illustration
Medical Dictionary, © 2009 Farlex and Partners

Tophus (plural, tophi)

A chalky deposit of a uric acid compound found in gout. Tophi occur most frequently around joints and in the external ear.
Mentioned in: Gout
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

to·phus

, pl. tophi (tō'fŭs, -fī)
A salivary calculus or tartar.
Medical Dictionary for the Dental Professions © Farlex 2012