| ACML | atypical chronic myeloid leukemia |
|---|---|
| AFP | alpha-fetoprotein; anterior faucial pillar; atypical facial pain |
| ALEP | atypical lymphoepithelioid cell proliferation |
| ALLO | atypical Legionella-like organism |
| ATL | Achilles tendon lengthening; acute T-cell leukemia; adult T-cell leukemia; anterior tricuspid leafle... |
| atypical trigeminal neuralgia | Periodic pain in any region of the face, teeth, tongue, and occasionally in the occipital or shoulder area, which lasts several minutes to several days but has no trigger point and lacks the paroxysmal character of tic douloureux. Synonym: atypical facial neuralgia. (05 Mar 2000) |
|---|---|
| atypical verrucous endocarditis | Verrucous endocarditis sometimes associated with disseminated lupus erythematosus. Synonym: atypical verrucous endocarditis, Libman-Sacks syndrome, nonbacterial verrucous endocarditis. (05 Mar 2000) |
| regressing atypical histiocytosis | A rare disease characterised clinically by multiple ulcerating cutaneous papules and nodules which show spontaneous regression; the skin is infiltrated by malignant-appearing histiocytes. (05 Mar 2000) |
| pneumonia, atypical interstitial, of cattle | A cattle disease of uncertain cause, probably an allergic reaction. (12 Dec 1998) |
| mycobacterium, atypical | So-called atypical species of the genus mycobacterium. They are also called tuberculoid bacilli, i.e.: m. Buruli (see m. Ulcerans), m. Chelonae, m. Duvalii, m. Flavescens, m. Fortuitum, m. Gilvum, m. Gordonae, m. Intracellulare (see mycobacterium avium complex), m. Kansasii (kansas), m. Marinum, m. Obuense, m. Scrofulaceum, m. Szulgai, m. Terrae, m. Ulcerans, m. Xenopi. (12 Dec 1998) |
| mycobacterium infections, atypical | Infections with so called atypical mycobacteria (tuberculoid bacilli): m. Kansasii (kansas), m. Marinum, m. Scrofulaceum, m. Flavescens, m. Gordonae, m. Obuense, m. Gilvum, m. Duvali, m. Szulgai, m. Intracellulare (see mycobacterium avium complex), m. Xenopi (littorale), m. Ulcerans, m. Buruli, m. Terrae, m. Fortuitum (minetti, giae), m. Chelonae. (12 Dec 1998) |
| primary atypical pneumonia | An acute systemic disease with involvement of the lungs, caused by Mycoplasma pneumoniae and marked by high fever, cough, relatively few physical signs, and scattered densities on X-rays; usually associated with development of cold agglutinins and antibodies to the bacteria. Synonym: atypical pneumonia, Eaton agent pneumonia, mycoplasmal pneumonia. (05 Mar 2000) |
| adrenal hyperplasia | <pathology> A condition of diffuse enlargement of the adrenal glands. Origin: Gr. Plassein = to form (27 Sep 1997) |
| adrenal hyperplasia, congenital | A group of inherited disorders of adrenal steroidogenesis, the physical expression of which varies with the sex of the patient, the severity of the congenital enzyme defect, and the age at which the defect makes its presence felt. The most common form, the simple virilizing form, is due to a 21-hydroxylase deficiency. There is also a salt-losing form (a more complete 21-hydroxylase deficiency), a hypertensive form (11-hydroxylase deficiency), a 17-hydroxylase deficiency form, a desmolase deficiency form, and a 3-beta-hydroxysteroid deficiency form. (12 Dec 1998) |
| angiofollicular mediastinal lymph node hyperplasia | Solitary masses of lymphoid tissue containing concentric perivascular aggregates of lymphocytes, occurring usually in the mediastinum or hilar region of young adults; similar changes have been reported outside the mediastinum and, if associated with interfollicular sheets of plasma cells, may progress to lymphoma or plasmacytoma. Synonym: angiofollicular mediastinal lymph node hyperplasia, Castleman's disease. (05 Mar 2000) |
| angiolymphoid hyperplasia with eosinophilia | Solitary or multiple benign cutaneous nodules comprised of immature and mature vascular structures intermingled with endothelial cells and a varied infiltrate of eosinophils, histiocytes, lymphocytes, and mast cells. (12 Dec 1998) |
| basal cell hyperplasia | Increase in the number of cells in an epithelium resembling the basal cells. (05 Mar 2000) |
| benign giant lymph node hyperplasia | Solitary masses of lymphoid tissue containing concentric perivascular aggregates of lymphocytes, occurring usually in the mediastinum or hilar region of young adults; similar changes have been reported outside the mediastinum and, if associated with interfollicular sheets of plasma cells, may progress to lymphoma or plasmacytoma. Synonym: angiofollicular mediastinal lymph node hyperplasia, Castleman's disease. (05 Mar 2000) |
| benign prostatic hyperplasia | <urology> A benign enlargement of the prostate gland begins normally after age 50 years probably secondary to the effects of male hormones. If significant enlargement occurs, it may pinch off te urethra making urination difficult or impossible. See: urinary retention. Origin: Gr. Plassein = to form (06 Aug 1998) |
| verrucous hyperplasia | A non-invasive precursor of verrucous or squamous carcinoma of the oral mucosa, occurring in the elderly, characterised by sharp or blunt upward papillary projections of squamous epithelium. (05 Mar 2000) |