مؤتمر
Granulomatous dermatitis of the auricolar pinna in a heifer.
| العنوان: | Granulomatous dermatitis of the auricolar pinna in a heifer. |
|---|---|
| المؤلفون: | RIFICI, CLAUDIA, SFACTERIA, Alessandra, LANTERI, Giovanni, Reale S., La Spisa M., MAZZULLO, Giuseppe |
| المساهمون: | Vari, SISVet, Rifici, Claudia, Sfacteria, Alessandra, Lanteri, Giovanni, Reale, S., La Spisa, M., Mazzullo, Giuseppe |
| بيانات النشر: | SISVET ITA |
| سنة النشر: | 2014 |
| المجموعة: | Università degli Studi di Messina: IRIS |
| مصطلحات موضوعية: | C mucifacien, Skin granuloma, Splendore-Hoeppli |
| الوصف: | This study is aimed to describe the morpho-pathological and etiopathogenic aspects of a unique case of granulomatous dermatitis. A 2 y.o. Italian Friesian heifer showed a papillomatous-like lesion at the edge of the right auricular pinna. The lesion sized 9 cm x 11.5 cm, was exophytic, globular in shape, firm and with the outer surface uneven, depigmented and ulcerated. Cytological examination revealed the presence of an inflammatory population mainly composed by neutrophils and macrophages. On the basis of the cytological observation, the mass was excised and subjected both to histological staining (H&E, PAS, Gram) and molecular biology examination (PCR). The histological examination allowed the diagnosis of a pyogranulomatous inflammation characterized by a epithelioid and giant cells, neutrophilic and macrophagic infiltrate organized around focal areas of eosinophilic homogeneous material consistent with the Splendore-Hoeppli phenomenon. PAS staining highlighted numerous coccoid formations within the piogranulomatous reaction or freely standing in the tissue. Gram stain revealed Gram-positive bacterial colonies confirmed by PCR as Corynebacterium mucifaciens. Granulomatous dermatites are caused by agents against whom the body is sensitized and react through an immunomediated response(1). Sometimes the above reactions are histologically characterized by the Splendor-Hoeppli phenomenon that may represent the deposition of antigen-antibody complexes (immunoglobulins and major basic proteins) and debris from the host inflammatory cells(2). The lesion described in this work seemed worth of description because of the etiologic agent. In fact, Corynebacterium mucifaciens is a newly-described species belonging to the the largest genus in the group of coryneform bacteria(3). Moreover, the seat of development was extremely atypical for the bovine species. Corynebacterium mucifaciens is better differentiated from closely-related species by molecular biology techniques, such as sequencing of the 16S rRNA gene and is ... |
| نوع الوثيقة: | conference object |
| وصف الملف: | ELETTRONICO |
| اللغة: | English |
| العلاقة: | ispartofbook:LXVIII CONVEGNO NAZIONALE SISVet CONVEGNO SICV XI CONVEGNO AIPVet XII CONVEGNO SIRA; LXVIII CONVEGNO NAZIONALE SISVet CONVEGNO SICV XI CONVEGNO AIPVet XII CONVEGNO SIRA; firstpage:253; lastpage:254; numberofpages:2; alleditors:SISVet; http://hdl.handle.net/11570/2904770Test; http://www.sisvet.it/00_atti/atti_sisvet_2014.pdfTest |
| الإتاحة: | http://hdl.handle.net/11570/2904770Test http://www.sisvet.it/00_atti/atti_sisvet_2014.pdfTest |
| رقم الانضمام: | edsbas.D98C79F2 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |