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CT used in the diagnosis of a cisterna chyli obstruction
  1. Lisa Cristyn DiGiovanni1,
  2. Laura Elizabeth Selmic1,
  3. Megan Theresa Cray1,
  4. Randy Brunswick2 and
  5. Lynn Griffin3
  1. 1 Veterinary Clinical Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
  2. 2 Brunswick Animal Hospital, Normal, Illinois, USA
  3. 3 Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado, USA
  1. Correspondence to Dr Laura Elizabeth Selmic; laura.selmic{at}


Chyloperitoneum is an uncommon condition reported in cats and dogs. It is often secondary to processes such as neoplasia and therefore is associated with a grave prognosis. Diagnosis of the underlying disease process can be attempted through the use of diagnostic imaging techniques. In this case report, a five-year-old male castrated domestic longhair cat presented with a distended abdomen secondary to a chyloperitoneum. A CT was performed and identified a right perirenal mass that was concerning for neoplasia. Surgical treatment was recommended, but the owner elected for humane euthanasia due to financial constraints. A necropsy was performed, and gross findings included the presence of a perirenal dilated, tortuous, lymphatic duct. On microscopic examination with immunohistochemistry, specifically staining for CD31, the mass was diagnosed as hemangiosarcoma. It is suspected that the mass was causing obstruction to the flow of the lymphatic system resulting in a chyloperitoneum.

  • diagnostic imaging
  • neoplasia
  • oncology
  • pathology
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  • Contributors All authors contributed to the writing and critical review of the submitted manuscript draft.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data statement There are no additional data available.

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