A 5-year-old female cross-breed dog was presented for a one-month history of lethargy, poor appetite and weight loss. A hysterectomy had been performed 2 years ago. Abdominal palpation revealed a mid-abdominal mass and haematological analysis showed leucocytosis with left shift. On abdominal radiographs, a 9 cm in diameter soft tissue opacity mass ventral to the colon and caudal to the left kidney was observed. The abdominal ultrasonography revealed a mass well circumscribed, with a hyperechoic capsule and hypoechoic center with echoic debris. The presumptive diagnosis was an abscess due to foreign body granuloma. Laparotomy was performed and a mass close to the left ovary was found. Adhesions and residues of the suture material were observed close to the right ovary and the uterine body stump. The mass, both ovaries and adhesions were removed. On cut section of the mass two cavities were observed. The small one contained three embedded silk suture residues. Histopathological examination confirmed the diagnosis of a chronic abscess caused by silk suture.

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HistoryA 5-year-old 36-kg (79.2-lb) sexually intact male German Shepherd Dog was evaluated because of mild lameness of the right hind limb of 15 days' duration, without previous history of trauma. On physical examination, the thigh muscles were atrophied, and swelling of the right stifle joint was evident. Signs of pain were elicited on palpation of this area. The rest of the examination findings were unremarkable.Results of hematologic and biochemical analyses were within reference ranges. Radiographs of the right stifle joint were obtained (Figure 1).Determine whether additional imaging studies are required, or make your diagnosis from Figure 1-then turn the page →