| TAD | test of auditory discrimination; thoracic asphyxiant dystrophy; transient acantholytic dermatosis |
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| UD | ulcerative dermatosis; ulnar deviation; undetermined; underdeveloped; unit dose; urethral dilatation... |
| progressive pigmentary dermatosis | Chronic purpura, especially of the legs in men, spreading to form brownish patches; associated microscopically with perivascular lymphatic infiltration, diapedesis, and haemosiderosis. Synonym: Schamberg's dermatitis. (05 Mar 2000) |
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| seborrheic dermatosis | <dermatology> A form of inflammatory skin rash that results from an over activity of the sebaceous glands in the skin. Treatment often includes a mild hydrocortisone-containing cream. (27 Sep 1997) |
| subcorneal pustular dermatosis | A pruritic chronic annular eruption of sterile vesicles and pustules beneath the stratum corneum; bears a considerable clinical resemblance to dermatitis herpetiformis. Synonym: Sneddon-Wilkinson disease, subcorneal pustular dermatitis. (05 Mar 2000) |
| dermatosis | <dermatology> Any skin disease, especially one not characterised by inflammation. (18 Nov 1997) |
| dermatosis medicamentosa | drug eruption |
| dermatosis papulosa nigra | Dark brown papular lesions, observed in blacks, on the face and upper trunk; histologically and clinically, they resemble seborrheic keratoses. (05 Mar 2000) |
| dermolytic bullous dermatosis | Form of epidermolysis bullosa characterised by atrophy of blistered areas, severe scarring, and nail changes. It is most often present at birth or in early infancy and occurs in both autosomal dominant and recessive forms. (12 Dec 1998) |
| digitate dermatosis | See: parapsoriasis en plaque. Synonym: small plaque parapsoriasis. (05 Mar 2000) |
| transient acantholytic dermatosis | A pruritic papular eruption, with histologic suprabasal acantholysis, of the chest, with scattered lesions of the back and lateral aspects of the extremities, lasting from a few weeks to several months; seen predominantly in males over 40. Synonym: Grover's disease. (05 Mar 2000) |
| ulcerative dermatosis | An infectious disease of sheep characterised by crusted ulcers on the skin of the face, feet, and external genitalia; thought to be caused by the orf virus. Synonym: lip and leg ulceration. (05 Mar 2000) |
| lichenoid dermatosis | Any chronic skin eruption, characterised clinically by induration and thickening of the skin with accentuation of skin markings, and microscopically by a band-like lymphocytic infiltration of the papillary dermis. (05 Mar 2000) |