infiltrate

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Related to infiltrative: infiltrative cardiomyopathy

infiltrate

1. Pathol any substance that passes into and accumulates within cells, tissues, or organs
2. Pathol a local anaesthetic solution injected into the tissues to cause local anaesthesia

Infiltrate

 

an accumulation in bodily tissues of cellular elements admixed with blood and lymph. Inflammatory and tumorous infiltrates occur most often.

An inflammatory infiltrate consists chiefly of polymorphonuclear leukocytes (suppurative infiltrate), erythrocytes (hemorrhagic infiltrate), lymphoid cells (round cell infiltrate), and histiocytes and plasma cells (histiocyte-plasma cell infiltrate). These infiltrates may be resolved, may liquefy, or may undergo sclerosis and form caverns, abscesses, scars, and so forth.

A tumorous infiltrate consists of tumor cells of different kinds (carcinoma, sarcoma); it is a manifestation of the infiltrating growth of a tumor. When an infiltrate forms, the tissue enlarges, changes color, and becomes harder and sometimes painful. In surgical practice, an infiltrate is an induration that develops in tissues when they become saturated with an anesthetic.

V. V. SEROV

References in periodicals archive ?
Biallelic alterations of the large tumor suppressor 1 (LATS1) gene in infiltrative, but not superficial, basal cell carcinomas in a Japanese patient with nevoid basal cell carcinoma syndrome.
Likewise infiltrative BCC subtype, percentages of BCCs with any aggressive growth features increased progressively with rising extent of solar exposure, being only 14.
This clinical report describes a case of paraparesis secondary to an infiltrative spinal lipoma in a free-living Canada goose.
5) Indications for Mohs micrographic surgery include skin cancers with aggressive histologic subtypes, such as infiltrative BCC, and tumors larger than 2 cm that are located on the extremities.
Evaluation was done on the lines of infiltrative cardiomyopathies (amyloidosis and hemochromatosis) which were ruled out.
Although, in our case, the infiltrative appearance of the lesion in CT and the medial location of the kidney mass, we were technically hampered in performing the biopsy.
231 Nodular 61 6 67 Superficial 7 0 7 Morphoeic 4 0 4 Pathologic Nodular 67 1 68 subtype Nodulocystic 22 0 22 Micronodular 3 2 5 Infiltrative 3 4 7 Superficial 7 0 7 Morpheaform 4 0 4 Total 106 7 113 Gender Male 28 6 34 0.
3) Prominence of the nipples alone can be seen in other infiltrative conditions like Post Kala-Azar Dermal Leishmaniasis, sarcoidosis, malignant infiltrations, etc.
Called infiltrative lipomas, these usually occur in the legs but can affect the chest, head, abdominal body wall, or perianal region.
Because of their extensive infiltrative and invasive nature, malignant gliomas present unique challenges.
In revealing bile ducts injuries in early postoperative period (n=75) one or two stages interventions were performed, depending on presence of infiltrative inflammatory changes in subhepatic area.