Craniomandibular Osteopathy (CMO)
Craniomandibular osteopathy results from an abnormal non-neoplastic proliferation of the bones of the cranium.
Age of Onset: Less than 1 year old
Sex Predisposition: Any sex of animal can be affected
Clinical Course:
Clinical signs progress over a short period of time
Clinical signs refer to the predominant location of bony growth and subsequent compression of neural tissue. In this case, involvement of the occipital, frontal, parietal, temporal, and maxillary bones resulted in severe compression of the cerebellum and brainstem. In addition, the Akita in this report also had generalized long bone involvement which is not a typical manifestation of CMO (Ratteree, et al., 2011).
Clinical signs progress over a short period of time
Clinical signs refer to the predominant location of bony growth and subsequent compression of neural tissue. In this case, involvement of the occipital, frontal, parietal, temporal, and maxillary bones resulted in severe compression of the cerebellum and brainstem. In addition, the Akita in this report also had generalized long bone involvement which is not a typical manifestation of CMO (Ratteree, et al., 2011).
Clinical Signs:
Behavioral/Mental Awareness
Head shy
Failure to thrive
Posture and Appearance
Difficulty opening the jaw
Facial swelling
Enlargement of the jaw
Movement
Mild ataxia
Proprioception
Proprioceptive deficits
Cranial Nerve
Lack of response to audible stimuli
Special Functions
Difficulty with prehension
Excessive drooling
Painful Reactions
Painful on palpation of the side of the face and dorsal aspect of the face
Pain when opening the mouth or eating
Other
Lymphadenomegaly (mandibular and medial retropharyngeal)
Crepitus and joint laxity in the shoulder, elbow, coxofemoral, stifle, and tarsal joints
Appendicular orthopedic abnormalities
Behavioral/Mental Awareness
Head shy
Failure to thrive
Posture and Appearance
Difficulty opening the jaw
Facial swelling
Enlargement of the jaw
Movement
Mild ataxia
Proprioception
Proprioceptive deficits
Cranial Nerve
Lack of response to audible stimuli
Special Functions
Difficulty with prehension
Excessive drooling
Painful Reactions
Painful on palpation of the side of the face and dorsal aspect of the face
Pain when opening the mouth or eating
Other
Lymphadenomegaly (mandibular and medial retropharyngeal)
Crepitus and joint laxity in the shoulder, elbow, coxofemoral, stifle, and tarsal joints
Appendicular orthopedic abnormalities
Cranium and mandible
Unknown
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