| benign lymphoepithelial lesion | Benign tumour-like masses of lymphoid tissue in the parotid gland, containing scattered small, mainly solid islands of epithelial cells. Synonym: Godwin tumour. (05 Mar 2000) |
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| Bracht-Wachter lesion | A focal collection of lymphocytes and mononuclear cells within the myocardium in bacterial endocarditis. (05 Mar 2000) |
| bright t1 lesion | <radiology> (short T1), fat (lipoma, dermoid), sub-acute haemorrhage (metHb), paramagnetic agent (Gd, ? posterior pituitary), proteinaceous fluid (colloid cyst) most abnormalities cause long T1 and T2 (dark/bright) see also: dark T2 lesion (12 Dec 1998) |
| bubbly bone lesion | <radiology> Fibrous dysplasia, enchondroma, giant cell tumour (GCT), non-ossifying fibroma, osteoblastoma, myeloma, aneurysmal bone cyst (ABC), angioma, simple (solitary, unicameral) bone cyst, hyperparathyroid cyst, infection (Brodie's abscess; coccidioidomycosis; echinococcus), chondromyxoid fibroma, chondroblastoma mnemonic: FEGNOMASHIC (!!) (12 Dec 1998) |
| radial sclerosing lesion | A variant of sclerosing adenosis of the breast with central scar formation and radiating hyperplastic ducts. Synonym: radial scar. (05 Mar 2000) |
| Mallory-Weiss lesion | Laceration of the gastric cardia, as seen in the Mallory-Weiss syndrome. Synonym: Mallory-Weiss tear. (05 Mar 2000) |
| gelatinous lesion | A small area of oedema in the arterial intima, possibly a precursor of a fibrous plaque. (18 Nov 1997) |
| Ghon's primary lesion | Calcification seen in pulmonary parenchyma (usually mid-lung area) and hilar nodes resulting from earlier, usually childhood, infection with tuberculosis. Synonym: Ghon's complex, Ghon's focus, Ghon's primary lesion. (05 Mar 2000) |
| GI-tract target lesion | <radiology> Metastatic melanoma, primary neoplasm, spindle cell tumour (benign or malignant), lymphoma, carcinoid, carcinoma, metastasis, breast carcinoma, lung carcinoma, renal carcinoma, Kaposi's sarcoma, eosinophilic granuloma, ectopic pancreas (12 Dec 1998) |
| caviar lesion | A dilated vein or varicule existing in the venous collecting system under the tongue. (05 Mar 2000) |
| gross lesion | A lesion plainly visible to the naked eye. (05 Mar 2000) |
| ring-wall lesion | A small ring haemorrhage in the brain that stimulates proliferation of a glial ring. (05 Mar 2000) |
| coin lesion of lungs | A solitary, round, circumscribed shadow found in the lung on chest radiograph; causes include granuloma, primary or metastatic carcinoma, benign tumour, vascular malformation. Synonym: coin lesion of lungs. (05 Mar 2000) |
| coin lesion, pulmonary | Solitary, round, circumscribed shadows found in the lungs in X-ray examinations. Common causes are tuberculosis, neoplasms, cysts, or vascular anomalies. (12 Dec 1998) |
| cold liver lesion | <radiology> Size for detection = 1-2 cm (3-cm deep lesions), primary tumour (haemangioma hot by Tc-RBCs), metastasis, inflammatory lesion (e.g., amebic abscess), degenerative disease, trauma, congenital lesion (solitary cyst or polycystic disease) see: liver-spleen scan (12 Dec 1998) |