title: [The clinical course and differential diagnosis of papular dermatitis in fattened pigs].
abstract: Since December 1981, dermatitis of unknown etiology in form of papular lesions has appeared in fattened pigs in some large herds in the Czech Socialist Republic. Clinical investigations of diseased pigs were performed in a large fattening house D. and in a large production herd of pigs M. in the region with frequent mines (lignite extraction). The diameter of the papules is mostly 3-5 mm, they are not painful when touched, are straggled irregularly, their large numbers are on the upper surface of the body. Papular dermatitis has a chronic course, affecting the gilts and castrated boars from the body weight of 30 kg, irrespective of their nutritional status. The overall health condition of pigs is not impaired and the disease does not cause itch. In the infected herds, there are usually fewer than 30% of pigs suffering from the disease. The incidence of the disease is highest in winter months. It is necessary to distinguish by differential diagnostics: swine pox, parakeratosis of swine, lesions of impetigo contagiosa suum, pustular dermatitis and scab of swine, from rarely occurring skin diseases of swine hypotrichosis cystica suis and demodicosis of swine. Neither did preventive nor therapeutic measures reduce expressively the incidence of skin lesions. We hope that the complex investigation of the internal environment of the infected pigs could help to reveal the pigs sensitive to the infection by this disease.
mesh_terms: D000818:Animals; D003937:Diagnosis, Differential; D005260:Female; D008297:Male; D012871:Skin Diseases / Q000175:diagnosis / Q000453:epidemiology / Q000473:pathology / Q000662:veterinary*; D013552:Swine; D013553:Swine Diseases / Q000175:diagnosis* / Q000453:epidemiology / Q000473:pathology
vernacular_title: Klinický průbĕh a diferenciální diagnostika pri papulózní dermatitidĕ výkrmových prasat.