. The ready-reference handbook of diseases of the skin. e, neck, andscalp. There are no subjective symptoms. Some of thelesions may disappear spontaneously. Generally the diseasespreads slowly so as to occupy large areas. Respighi describes five distinct forms: 1. Miliary andsubmiliary papules ; 2. Hempseed to lentil-size papules ; to nummular papules; 4. Ring and circinate disks,which is the most common form. Their edges are raised,regular, toothed, or zig-zag, and may be composed of pap-ules arranged in chains. The disks may be round, oval, orelliptic ; 5. Ball or muscle-shaped les
. The ready-reference handbook of diseases of the skin. e, neck, andscalp. There are no subjective symptoms. Some of thelesions may disappear spontaneously. Generally the diseasespreads slowly so as to occupy large areas. Respighi describes five distinct forms: 1. Miliary andsubmiliary papules ; 2. Hempseed to lentil-size papules ; to nummular papules; 4. Ring and circinate disks,which is the most common form. Their edges are raised,regular, toothed, or zig-zag, and may be composed of pap-ules arranged in chains. The disks may be round, oval, orelliptic ; 5. Ball or muscle-shaped lesions, 3 to 4 mm. forms begin as papules. The disease is bilateral andtends to symmetry. The nails may be affected, becoming 1 Monatshft. f. prkt. Dermat., 1893, xvii. 417. 2 Ibid., 1894, xviii. 70. 402 DISEASES OF THE SKIN. cloudy, striped longitudinally, rough, thickened, raised fromtheir bed, brittle, and perhaps they may be shed. The disease usually begins in early childhood. Most ofthe cases are in women. Many members of the same Fig. Porokeratosis (R es pig h i) . family may be affected. It consists in a hyperkeratosis ofthe glandular orifices, and destroys both the glands and hairfollicles. It is thought by Mibelli to be a species of nsevusunius lateris. Port-wine Mark. See Naevus. Post-mortem Warts. See Tuberculosis verrucosa cutis. Prairie Itch. This disease has been found to be in most PRURIGO. 403 cases a combination of pruritus hiemalis and scabies. It isnot a disease sui generis. Prickly Heat. See Miliaria. Prurigo (Pru-rigo). Synonyms: Strophulus prurigi-neux ; Scrofulide boutonneuse benigne; (Ger.) Juckblat-tern. A chronic disease of the skin characterized by beginningin infancy as an urticaria, and changing into a recurringeruption of pale, hard, exceedingly itchy, discrete papules,especially upon the extensor surfaces of the extremities. Itincreases in severity from above downward, and is accom-panied by enlargement of the inguinal glands. There ar
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectskin, bookyear1896
