induration


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induration

[‚in·də′rā·shən]
(biology)
The process of hardening, especially by increasing the fibrous elements.
(geology)
The hardening of a rock material by the application of heat or pressure or by the introduction of a cementing material.
A hardened mass formed by such processes.
The hardening of a soil horizon by chemical action to form a hardpan.
(medicine)
Hardening of a tissue or organ due to an accumulation of blood, inflammation, or neoplastic growth.
References in periodicals archive ?
Perineal nodular induration ("biker's nodule"): Report of two cases with fine-needle aspiration cytology and immunohistochemical study.
Before investigations began, 8 mm would have been classified as a negative result; however, in the context of three other positive tuberculin skin test conversions (>10 mm) among nurses on the same unit, an 8 mm induration in a nurse with a 0 mm TST result upon hire the previous year was considered positive.
The patient returned to the clinic during the next several months with improvement in her symptoms and reduction in the size and induration of the lesions.
An induration of >10mm was defined as positive regardless of BCG vaccination status only for the purpose of checking the compatibility of the two tests.
Treatment failure - less than 25% reduction in size of; lesion with persisting induration or increase in size of lesion.
Tuberculin skin test showed an induration of more than or equal to 10 mm in 274(34%) cases which was highest in Baluchistan.
Our patient had typical features of TTA: persistence of the lesion since birth, a typical triangular shape of the lesion, a frontotemporal location, the presence of a small terminal hair fringe on the border of the frontal region, absence of exclamation mark hairs, normal appearance of the skin in the affected area, absence of any inflammation, scarring, erythema, or induration on the lesional skin, and the presence of mostly vellus hairs on the lesion.
Physical examination revealed a marked swelling of the tongue, floor of the mouth, and submandibular area with significant induration, and fibrinous exudates covered the surgical site (figure).
Although there was no significant difference between the two groups in breast shrinkage, breast oedema, breast induration (hardening), and pigmentation changes, the benefits of using IMRT in these patients were clear.
The plant, scheduled for commissioning in 2014, will employ traveling grate induration technology and will produce high-grade magnetite pellets with iron content of 65% or more.
In a child, a Mantoux induration of >2 mm is considered positive in the absence of ART.
Per rectal examination revealed a small amount of fresh blood, but no surrounding crepitus or induration.