title: Sonographic findings in horses with mediastinal lymphosarcoma: 13 cases (1985-1992).
abstract: Sonographic findings correlated with necropsy findings in 8 of 9 horses in which the cranial portion of the mediastinum was evaluated by use of both methods. Cranial mediastinal masses were imaged as multilobular and homogeneously hypoechoic; a complex echogenic pattern was observed with necrosis within the mass. Pleural effusion was a common finding in horses with mediastinal lymphosarcoma. Cytologic evaluation of pleural fluid samples was useful in diagnosis of lymphosarcoma in 10 of 12 horses that had thoracentesis. Sonographic examination of the thorax and cranial portion of the mediastinum can aid in the diagnosis of mediastinal lymphosarcoma in horses. Such examination should be performed in horses with clinical signs of cranial vena cava obstruction in which pleural effusion is detected, or when thoracic lymphosarcoma is suspected.
authors.affiliation: George D. Widener Hospital, Section of Medicine, New Bolton Center, University of Pennsylvania, Kennett Square 19348.
authors.forename: J L
authors.initials: JL
authors.lastname: Garber
authors.forename: V B
authors.initials: VB
authors.lastname: Reef
authors.forename: J M
authors.initials: JM
authors.lastname: Reimer
mesh_terms: D000818:Animals; D005260:Female; D006734:Horse Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D006736:Horses; D008228:Lymphoma, Non-Hodgkin / Q000000981:diagnostic imaging / Q000473:pathology / Q000662:veterinary*; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000662:veterinary*; D012189:Retrospective Studies; D014463:Ultrasonography; D014743:Videotape Recording