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Sheep and goats
Chronic coenurosis in sheep: spontaneous remission of clinical signs and role of CT and MRI in the diagnosis and follow-up
  1. Laura Tena1,
  2. Ricardo De Miguel1,
  3. Enrique Castells2,
  4. Amaia Escudero3 and
  5. Delia Lacasta1
  1. 1Animal Pathology, Veterinary Faculty of the University of Zaragoza, Zaragoza, Spain
  2. 2Centro Clínico Veterinario, Zaragoza, Spain
  3. 3Centro Veterinario Aralar, Zaragoza, Spain
  1. Correspondence to Dr Delia Lacasta; dlacasta{at}


Coenurosis is a fatal disease caused by the larval stage of Taenia multiceps that leads to enormous economic losses in sheep production. Five ewes affected by chronic coenurosis were studied by CT and one of them by MRI. CT allowed detection, localisation and characterisation of the parasitic cyst in all evaluated animals. MRI evinced the white and grey matter damage in the areas adjacent to the coenurus. One of the affected animals recovered spontaneously, showing a shrunken and collapsed parasitic cyst surrounded by partially mineralised tissue in the CT and MRI images. These findings were confirmed at postmortem examination. In conclusion, CT and MRI are valuable non-invasive techniques that allow early diagnosis, characterisation and follow-up of ovine CNS diseases. To the authors’ knowledge, this is the first report of a spontaneous clinical remission of chronic coenurosis in small ruminants.

  • sheep
  • cerebral coenurosis
  • computed tomography (CT)
  • magnetic resonance imaging (MRI)
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  • Contributors All authors have actively contributed to the elaboration of this paper, either in their study and clinical diagnosis or in their writing.

  • 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 availability statement All data relevant to the study are included in the article.

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