ABSTRACT
A progressive ethmoidal hematoma (PEH) was treated successfully in a 4-week-old Belgian filly by surgical removal, using a frontonasal bone flap. The filly had respiratory stridor, epistaxis, and facial enlargement over the left paranasal sinuses, which had progressively increased in size since birth. Computed tomographic images of the head obtained with the foal under general anesthesia were useful in determining the extent and nature of the soft-tissue mass and planning surgical intervention. On the basis of the histologic appearance of the mass, a diagnosis of PEH was made. Twelve months after surgery, the facial appearance was normal and the abnormal appearance of the ethmoid region on endoscopic evaluation was less obvious, with return of the nasal septum to a normal position. Progressive ethmoidal hematoma is uncommon and, to our knowledge, has not been reported in a neonate. Clinical signs of PEH in this foal were atypical because of the rapid enlargement of the mass, extent of facial deformity, and minimal epistaxis and interoperative hemorrhage.
Subject(s)
Ethmoid Sinus/pathology , Hematoma/veterinary , Horse Diseases/surgery , Paranasal Sinus Diseases/veterinary , Tomography, X-Ray Computed/veterinary , Animals , Ethmoid Sinus/diagnostic imaging , Ethmoid Sinus/surgery , Female , Head/diagnostic imaging , Hematoma/diagnosis , Hematoma/surgery , Horse Diseases/diagnosis , Horse Diseases/pathology , Horses , Maxillary Sinus/diagnostic imaging , Maxillary Sinus/pathology , Maxillary Sinus/surgery , Paranasal Sinus Diseases/diagnosis , Paranasal Sinus Diseases/surgery , Paranasal Sinuses/diagnostic imaging , Paranasal Sinuses/pathology , Paranasal Sinuses/surgery , Tomography, X-Ray Computed/methodsSubject(s)
Cervical Vertebrae , Horse Diseases/diagnosis , Spondylitis/veterinary , Animals , Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Cervical Vertebrae/diagnostic imaging , Cervical Vertebrae/pathology , Diagnosis, Differential , Horse Diseases/drug therapy , Horse Diseases/pathology , Horses , Male , Penicillins/therapeutic use , Phenylbutazone/therapeutic use , Radiography , Spondylitis/diagnosis , Spondylitis/pathologySubject(s)
Carpus, Animal , Hamartoma/veterinary , Horse Diseases/diagnosis , Skin Diseases/veterinary , Animals , Carpus, Animal/blood supply , Carpus, Animal/pathology , Carpus, Animal/surgery , Female , Hamartoma/diagnosis , Hamartoma/pathology , Horse Diseases/pathology , Horse Diseases/surgery , Horses , Skin Diseases/diagnosis , Skin Diseases/pathologyABSTRACT
Pleural mesothelioma and pericardial mesothelioma with spread to the pleural cavity were diagnosed in 2 horses. Clinical signs included respiratory distress, depression and pleural pain. The affected body cavities contained copious, serous effusions containing very large neoplastic mesothelial cells with densely-staining cytoplasm, hyperchromic nuclei and prominent, often multiple, nucleoli. Ultrastructurally, the neoplastic cells appeared as solid aggregates, with profuse microvillous borders and neolumen formation. Cytological examination, together with confirmative ancillary diagnostic tests, including electron microscopy and immunocytochemistry, may be used to obtain an ante-mortem diagnosis of mesothelioma.