Article Text

Short Communication
Fibrosing myopathy of the temporal muscles causing lockjaw in a veiled chameleon (Chamaeleo calyptratus)
  1. M. N. Rowland, BVSc, CertZooMed, MRCVS
  1. Trinity Vet Centre, Hermitage Walk, Hermitage Lane, Maidstone, Kent, ME16 9NZ, UK
  1. E-mail for correspondence enquiries{at}

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REPTILES are becoming increasingly popular as pets. The veiled chameleon (Chamaeleo calyptratus) is a commonly kept species due to its docile nature and fascinating appearance. Because more is known regarding the captive husbandry of these inoffensive creatures, they are living to a greater age in captivity and, as a result, are presenting with previously less described conditions. This short communication describes the presentation and investigation of a case of lockjaw in an adult veiled chameleon.

A three-year-old male veiled chameleon (Fig 1) was presented because the owner had noted a progressive difficulty in the chameleon's ability to open its mouth. As a result, it was unable to feed. Previously, the chameleon had been treated for stomatitis and glossitis. On examination, the chameleon was bright and alert. Its bodyweight was 134 g and its body condition score was 2.5/6. An effort was made to open the chameleon's mouth. Despite reasonable force, the mouth could be opened only 3 mm while the lizard was conscious. No other abnormalities were detected on clinical examination. The chameleon was admitted to the hospital for investigations including blood biochemistry, haematology, radiography and examination of the buccal cavity under anaesthesia.

Fig 1

Three-year-old veiled chameleon (Chamaeleo calyptratus) on presentation

Blood was drawn from the ventral coccygeal vein and submitted for routine biochemistry and haematology. No significant abnormalities were …

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