Ethmoturbinate polyps are described in a one-year-old cat with a four month history of stertorous respiration and frequent sneezing. Remission of clinical signs occurred after rhinotomy and polypectomy. This appears to be the first known case of nasal polyps reported from outside Italy and the USA.

Peliosis hepatis is an uncommon disease characterised by irregular blood‐filled cystic spaces in the hepatic parenchyma; it is often accompanied by telangiectasis (dilatation of the sinusoids) although this may also occur separately. The cause is unknown but the condition occurs in a range of species including man, cattle and dogs and a single case has been reported previously in a cat. In this report of 18 cases in cats, there had been intra‐abdominal haemorrhage in 11 of them.

Endoscopic and radiographic techniques have not been widely applicable in the evaluation of chemically induced murine colon cancer. The authors investigated methods of cleansing the rat colon and refined endoscopic and radiographic techniques. They compared total colonoscopy (TC) and air-contrast (ACBE) and single-contrast barium enema (SCBE) findings with those obtained at necropsy in rats with 1,2-dimethylhydrazine (DMH)-induced colon cancer. Gastrograffin enemas with bisacodyl suppositiories showed complete evacuation of solid feces. Sprague-Dawley rats treated with DMH had their colons cleansed and then underwent TC (5.0-mm Olympus bronchoscope) and either SCBE or ACBE. Colonoscopy and ACBE were equally sensitive (81.5% and 76.3%, respectively), although SCBE was significantly insensitive in identifying lesions (P less than 0.001). This study demonstrates that: (1) mechanical cleansing of the rat colon is feasible, (2) TC and barium radiology can be done routinely after mechanical cleansing, and (3) TC and double-contrast BE are sensitive in identifying colon lesions. These techniques will provide a means for manipulation of murine tumors and in vivo surveillance.

A cystic thymoma was identified in an eight‐year‐old domestic longhair cat with a chronic cough. Radiographs indicated a large mass of soft tissue density in the anterior thorax. Ultrasonography revealed an echogenic mass occupying the cranial and mid‐thorax with a slight swirling movement of the echoes. Subsequent drainage under ultrasound guidance yielded a cholesterol‐rich fluid. The mass was resected at exploratory thoracotomy and the diagnosis of thymoma confirmed. There was no sign of recurrence one year postoperatively. The clinical features and unusual laboratory findings are presented and compared with previously reported cases of thymomata in the cat.

This paper reviews the recently recognised condition of feline spongiform encephalopathy and its importance as a neurological disorder of cats. Its possible origin and relationship to other transmissible spongiform encephalopathies are discussed.