A 5 mo old female Akita and a 1 yr, 5 mo old male German shorthaired pointer were both evaluated for soft-tissue lesions characterized by rapidly expanding edema, erythema, and pain. Ultrasound was utilized to locate and sample fluid accumulations, and β-hemolytic Streptococcus was isolated from the wounds. Development of systemic symptoms including fever, tachycardia, and tachypnea as well as a lack of response to medical management prompted surgical intervention in both cases. During surgical exploration and debridement, disruption of intermuscular tissue planes was appreciated and necrotizing fasciitis (NF) was suspected. Negative-pressure wound therapy systems utilizing 120 mm Hg of continual negative pressure were applied to wounds for 5 and 4 days for the Akita and German shorthaired pointer, respectively. Resolution of infection was achieved and although the lesions were associated with limbs, amputation was avoided. In both cases, the results of histopathology were consistent with NF. NF is recognized as a rapidly progressive infection associated with high rates of morbidity and mortality. Timely use of negative-pressure wound therapy appears to be a viable management tool to accompany surgical debridement, appropriate antibiotics, and analgesics.

A 13‐year‐old male Setter‐Springer crossbred dog was presented with signs of acute peritonitis three days after blunt abdominal trauma. In abdominal radiographs, a bubbly accumulation of gas in the central and cranioventral parts of the liver silhouette and mild peritoneal effusion were seen. At laparatomy, firm, necrotic, nodular hepatic masses containing gas were found to be ruptured. The histologic diagnoses were hepatic adenoma with hepatic necrosis and nodular hepatic hyperplasia. The pathogenesis of hepatic abscessation and the radiographic differential diagnosis of extraluminal abdominal gas are discussed.

Abstract— —Arthrograpliy of the shoulder joints of twelve normal dogs and of seventeen clinical patients with shoulder lameness was done with a positive contrast medium. The relationships between the joint capsule and the surrounding tendons, muscles, and bones were demonstrated by making silastic moulds of normal shoulder joints. These moulds were used to incorporate the radiographic anatomy of the arthrograms. In osteochondritis dissecans, arthrography was helpful in diagnosing transchondral fissures and in determining whether surgical intervention was indicated. In four dogs with long‐standing obscure lamenesses, a rupture of the joint capsule was outlined using arthrography. In bicipital tenosynovitis and in oesteoarthritis the arthrograms were unremarkable. Contrast radiography of the shoulder joint is a valuable diagnostic method in dogs with obscure lamenesses where plain radiographs have been negative or inconclusive. Résumé— —On a effectué une arthrographie de I'articulation de l'épaule avec une substance opaque aux rayons X cher 12 chiens normaux et 17 malades atteints de boiterie de l'épaule. Les rapports entre la capsule articulaire et les tendons, les muscles et les os du voisinage ont étéétudiés à l'aide de moulages plastiques des articulations de l'épaule normale. Ces moulages ont été utilisés dans l'interprétation radiographique anatomique d'arthrogrammes. Dans l'ostéïte disséquente, l'arthrographie est utile pour diagnostiquer les fissures transchondrales et déterminer les indications des interventions chirurgicales. Chez quatre chiens atteints d'une boiterie chronique de cause indeter‐minée une rupture de la capsule articulaire fut mise en évidence par I'arthrographie. Dam la ténosynovite bicipitale et dans l'ostéoarthrite, les arthrogrammes ne présentaient rien de particulier. La radiographie de l'articulation de l'épaule avec produit de contraste représente une méthode de diagnostic valable chez les chiens présentant une boiterie de cause indéterminée et pour lesquels les radiographies ordinaires ont données des résultats négatifs ou ne permettant pas de conclure. Zusammenfassung— —Eine Arthrographie des Schultergelenkes von zwölf normalen Hunden und von 17 Klinikpatienten mit Lahmheit der Schulter wurde mit einem positiven Kontrastmittel durchgeführt. Die Beziehungen zwischen der Gelenkkapsel und den umgebenden Sehnen, Muskeln und Knochen wurden durch Herstellung von Silastic‐Plastiken normaler Schultergelenke demon‐striert. Sie wurden zur Deutung der radiographischen Anatoinie der Arthrogramme benutzt. Bei Osteochondritis dissecans half die Arthrographie bei der Diagnose der transchondralen Fissuren und bei der Feststellung, ob ein chirurgischer Eingriff angezeigt war. Bei vier Hunden mit lange bestehender obskurer Lahinheit wurde eine Ruptur der Gelenkkapsel arthrographisch dargestellt. Bei bicipitaler Tenosynovitis und Osteoarthritis waren die Arthrogramme unauffallig. Die Kontrast‐radiographie des Schultergelenks ist eine wertvolle diagnostische Methode bei Hunden mit obskurer Lahmheit in...

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