| PAC | papular acrodermatitis of childhood; parent-adult-child; pericarditis-arthropathy-camptodactyly [syn... |
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| PM | after death (Lat. post mortem); after noon [Lat. post meridiem]; mean pressure; pacemaker; pantomogr... |
| SAPHO | synovitis-acne-pustulosis hyperostosis-osteomyelitis [syndrome] |
| acne | <dermatology> An inflammatory disease of the pilosebaceous unit, the specific type usually being indicated by a modifying term, frequently used alone to designate common acne or acne vulgaris. Origin: possibly Gr. Akm = a point or achn = chaff (15 Nov 1997) |
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| acne albida | Acne caused by milia. (05 Mar 2000) |
| acne artificialis | Acne produced by external irritants, such as tar (chloracne), or drugs internally administered, such as iodides or bromides. Synonym: acne venenata. (05 Mar 2000) |
| acne bacillus | A bacteria isolated from normal skin, intestinal contents, wounds, blood, pus, and soft tissue abscesses. It is a common contaminant of clinical specimens, presumably from the skin of patients or attendants. (12 Dec 1998) |
| acne cachecticorum | Acne occurring in persons who have a debilitating constitutional disease; characterised by large, soft, purulent, ulcerative, cystic, and scarred lesions. (05 Mar 2000) |
| acne ciliaris | Follicular papules and pustules on the free edges of the eyelids. (05 Mar 2000) |
| acne conglobata | Severe cystic acne, characterised by cystic lesion, abscesses, communicating sinuses, and thickened, nodular scars; usually sparing the face. (05 Mar 2000) |
| acne cosmetica | Low-grade, non-inflammatory acne lesions from repeated application of comedogenic agents in cosmetics. (05 Mar 2000) |
| acne decalvans | A papular or pustular inflammation of the hair follicles of the scalp seen mostly in men, resulting in scarring and loss of hair in the affected area. Synonym: acne decalvans, alopecia follicularis. (05 Mar 2000) |
| acne erythematosa | acne rosacea |
| acne frontalis | A pyogenic infection involving follicles occurring chiefly on the forehead and temples; involution of the umbilicated and crusting lesions is followed by scar formation. Synonym: acne frontalis, acne necrotica. (05 Mar 2000) |
| acne fulminans | Severe scarring acne in teenaged males, which may be associated with fever, polyarthralgia, crusted ulcerative lesions, weight loss, and anaemia. Origin: fulmen, fulminis, thunder, lightning (05 Mar 2000) |
| acne generalis | Acne lesions involving the face, chest, and back. (05 Mar 2000) |
| acne hypertrophica | Acne vulgaris in which the lesions, on healing, leave hypertrophic scars. (05 Mar 2000) |
| acne indurata | Deeply seated acne, with large papules and pustules, large scars, and hypertrophic scars. (05 Mar 2000) |