laryngeal nodule

laryngeal nodule

Singer's node, see there.

McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

nodule

(noj'ool?) [L. nodulus, little knot]

1. A small node.

2. A small cluster of cells.

aggregate nodules

A group of unencapsulated lymph nodules, such as Peyer's patches of the small intestine.

Albini's nodules

See: Albini's nodules

apple jelly nodule

The jelly-like lesion of lupus vulgaris.

Arantius' nodule

See: Arantius, Julius Caesar

Aschoff's nodules

See: Aschoff's nodules

Bracht-Wachter nodules

Bracht-Wachter bodies.

cortical nodules

Lymph nodules located in the cortex of a lymph node.

laryngeal nodule

Singer's node.

lymph nodule

A mass of compact, densely staining lymphocytes forming the structural unit of lymphatic tissue. These nodules may occur singly, in groups (as in Peyer's patches), or in encapsulated organs such as lymph nodes. Each contains a lighter-staining germinal center where new lymphocytes are formed.

miliary nodule

Small round density, 1 to 5 mm in diameter, as seen on the chest radiograph (e.g., in disseminated tuberculosis).

milker's nodules

Painless smooth or warty lesions due to a poxvirus that is transmitted from the udders of infected cows to the hands of milkers.

See: paravaccinia

rheumatic nodules

Subcutaneous nodes of fibrous tissue that may be present in patients with rheumatic fever.

See: subcutaneous nodule for illus.

Schmorl's nodule

Schmorl's node.

nodule of the semilunar valve

Arantius' body.

siderotic nodules

Small brown nodules seen in the spleen and other organs and consisting of necrotic tissue encrusted by iron salts.

solitary nodule

An isolated nodule of lymphatic tissue such as occurs in mucous membranes.

solitary pulmonary nodule

Any isolated mass lesion found in the lung, usually during an x-ray study performed for another reason. Most small masses that are identified in this way are benign, although smokers, patients already known to have cancer in another organ system, and older patients have an increased risk that a solitary nodule will be a new malignancy or a metastasis from another source.

Patient care

The first step in evaluating a solitary lung nodule is to search for prior chest x-ray films. If the nodule can be found on films done many months or years earlier and has not changed in size, shape, or calcification, it is likely to be benign and can be followed conservatively. Newly identified lesions within the lung that were not previously present usually are evaluated with further studies, such as computed tomography of the lungs, sputum studies, or biopsies.

SUBCUTANEOUS NODULES

subcutaneous nodules

Small, nontender swellings resembling Aschoff's bodies and found over bony prominences in persons with rheumatic fever or rheumatoid arthritis (in rheumatoid arthritis, they are called rheumatoid nodules).

See: illustration

SURFER'S NODULES

surfer's nodules

Nodular swelling and possible bone changes of the area of the lower leg and foot exposed to pressure and trauma while on a surfboard. The nodules may be painful.

Synonym: surfer's knots See: illustration

thyroid nodule

A visible or palpable mass in the thyroid gland, benign about 90% to 95% of the time. A history of radiation to the head or neck increases the likelihood that the lesion will be malignant, as does the appearance of the nodule in the first decades of life. Fine-needle aspiration biopsy is the first and often the definitive diagnostic test.

typhoid nodules

Nodules characteristic of typhoid fever and found in the liver.

typhus nodules

Small nodules of the skin seen in typhus. They are composed of mononuclear cell infiltration around vessels.

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