| PV | pancreatic vein; papillomavirus; paraventricular; paravertebral; pemphigus vulgaris; peripheral vasc... |
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| pityriasis maculata | A mild exanthematous inflammation of unknown aetiology. It is characterised by the presence of salmon-coloured maculopapular lesions. The most striking feature is the arrangement of the lesions such that the long axis is parallel to the lines of cleavage. The eruptions are usually generalised, affecting chiefly the trunk, and the course is often self-limiting. (12 Dec 1998) |
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| pityriasis nigra | A fungus infection due to Exophiala werneckii, marked by dark lesions giving a spattered appearance and occurring most commonly on the palms of the hands. Synonym: pityriasis nigra. (05 Mar 2000) |
| pityriasis rosea | A mild exanthematous inflammation of unknown aetiology. It is characterised by the presence of salmon-coloured maculopapular lesions. The most striking feature is the arrangement of the lesions such that the long axis is parallel to the lines of cleavage. The eruptions are usually generalised, affecting chiefly the trunk, and the course is often self-limiting. (12 Dec 1998) |
| pityriasis sicca | <dermatology> Dried skin that flakes free from the scalp. (27 Sep 1997) |
| pityriasis versicolor | A common chronic, noninflammatory and usually symptomless disorder, characterised by the occurrence of multiple macular patches of all sizes and shapes, and varying in pigmentation from fawn-coloured to brown. It is seen most frequently in hot, humid, tropical regions, and is caused by pityrosporon orbiculare. (12 Dec 1998) |