Doenças da cavidade nasal em pequenos ruminantes no Distrito Federal e no Estado de Goiás

Abstract

showed mycotic or oomicotic granulomatous rhinitis and 22 animals (22/538, 4.08%) presented oestrosis diagnosis, affecting 86.36% of sheep and 13.64% of goats. The pyogranulomatous rhinitis in sheep occurred in flooded areas with abundant plant material decomposing. Rhinofacial pythiosis infection in animals showed as major changes swelling in the nasal region due to extensive granulomatous lesions associated with tissue necrosis, characterized by numerous macrophages and polymorphonuclear cells surrounding necrotic centers containing the agent surrounded by Splendore-Hoeppli reaction. Sheep with conidiobolomycosis showed extensive areas of necrosis and pyogranulomatous inflammation associated with fungal hyphae, localized in the nasopharynx and also in peribulbar region and exophthalmia. Most animals with oestrosis showed no significant clinical and pathological changes, even with the presence of larvae mainly in the sinuses and nasal turbinates, trachea and paranasal sinus. The importance of such diseases is still unknown in the region, and the knowledge of the clinical-pathological and epidemiological conditions is of great relevance for the diagnosis, control and prevention to avoid the expansion and losses to livestock.

Global Distribution and Clinical Features of Pythiosis in Humans and Animals

“…Animals with pythiosis predominantly manifested with a cutaneous/subcutaneous infection at the face, limb, thorax, or abdomen (n = 3082; 89.8% of all affected animals; Table 3) [138][139][140][141][142][143][144][145][146][147][148][149]. To a much lesser extent, some affected animals (n = 350; 10.2%) came with clinical manifestations associated with gastrointestinal (n = 249; 7.3%), disseminated (n = 25; 0.7%), pulmonary (n = 4; 0.1%), or other organ (n = 5; 0.1%) infection (Table 3).…”

Doenças da cavidade nasal de ruminantes

“…As lesões macroscópicas observadas na cavidade nasal caracterizam-se por extensas áreas de necrose tecidual, com coloração variando de avermelhada a marrom amarelada, friáveis e fétidas. Na pitiose rinofacial essas lesões podem estender-se da região mucocutânea para o interior da cavidade nasal e em alguns 16,22,59 casos estão associadas a perda de tecido ósseo nasal (Figura 9A) e tecido ósseo do palato, com substituição por massa necrótica, ocasionando as fístulas oronasais (Figura 9B). Linfonodos submandibulares e parotídeos estão quase sempre envolvidos e, ocasionalmente, granulomas são observados nos pulmões e glândulas paró- 22,43,59 tidas .…”