Abstract
Seven patients with psoriatic lesions of axilla and internatal cleft were tested by thermal and intradermal methacholine stimulation using the quinizarin test for sweating to determine the source of moisture causing maceration and absence of scaling in psoriasis inversus.
Histopathological changes were non-specific: slight and patchy hyperkeratosis and parakeratosis, slight elongation of rete ridges and thinning of suprapapillary plates, microspongiosis and vesiculation in variably acanthotic prickle cell layer; dilated capillary loops less prominent than in typical psoriasis.
Lesions clinically and histopathologically consistent with psoriasis inversus were anhidrotic. Maceration was due to spread of sweat from adjacent uninvolved skin, spongiosis and vesiculation, serum exudation and insensible perspiration.
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Selected References
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- CORMIA F. E., KUYKENDALL V. Studies on sweat retention in various dermatoses. AMA Arch Derm. 1955 Apr;71(4):425–435. doi: 10.1001/archderm.1955.01540280001001. [DOI] [PubMed] [Google Scholar]
- HELWIG E. B. Pathology of psoriasis. Ann N Y Acad Sci. 1958 Nov 10;73(5):924–935. doi: 10.1111/j.1749-6632.1959.tb40869.x. [DOI] [PubMed] [Google Scholar]
- KNIGHTS E. M., Jr, BRUSH J. S., SCHROEDER J. Simplified screening test for cystic fibrosis of the pancreas. J Am Med Assoc. 1959 Mar 21;169(12):1279–1280. doi: 10.1001/jama.1959.03000290005002. [DOI] [PubMed] [Google Scholar]
- MULLER S. A., KIERLAND R. R. The use of a modified starch-iodine test for investigating local sweating responses to intradermal injection of methacholine. J Invest Dermatol. 1959 Feb 1;32(2 Pt 1):126–128. doi: 10.1038/jid.1959.25. [DOI] [PubMed] [Google Scholar]