Page 114 - Rule Outs in Small Animal Medicine, Problem-oriented Assessment of Problems in Physical Examination and Clinical Pathology, 2nd Edition
P. 114
Neurology Neurology
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Miosis Strabismus
No protrusion of the Protrusion of the third
third eyelid eyelid Lateral Medial Ventral
Enophthalmus
– Normal in very – Normal in Siamese
small breeds cats Positional strabismus
Unilateral miosis Bilateral miosis Horner's syndrome – Orbital neoplasia – Orbital neoplasia â Vestibular disease
– Retrobulbar abscess – Retrobulbar abscess p. 98
– Lesion of the – Lesion of the
oculomotor nerve (III) abducens nerve (VI)
– Otitis media
â Anisocoria Metabolic/ Bilateral forebrain – Lesion of the
p. 102 toxic cause disease vagosympathetic trunk
– Lesion of the roots of
T1–T3 (avulsion)
– Thoracic lesion
– Cervical spinal cord
lesion
– Hepatic – Cerebral oedema – CNS lesion (brainstem)
encephalopathy – Hydrocephalus – Idiopathic Horner's
– Organophosphate – Trauma syndrome (common)
poisoning – Meningoencephalitis
– Opioids
– Other
104 105
