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Nasal Cavity - Developmental Pathology (view source)
Revision as of 21:31, 4 August 2008
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==Developmental disorders==
*'''Palatoschisis''' ([[Oral Cavity - Cavity & Gingiva#Cleft Palate|cleft palate]]) - [[Lungs - inflammatory#Aspiration pneumonia|aspiration pneumonia]] is a common sequel
*Nasal deviation
*'''Choanal atresia''' - imperforate buccopharyngeal membrane
*'''Maxillary cysts''' in foals - can cause obstruction of ipsilateral nasal passage, destruction of turbinates and deviation of nasal septum
*'''Cystic nasal chonchae'''
*'''Nasal cysts'''
*'''Deviation of nasal septum'''
*'''Cleft upper [[Lips - Anatomy & Physiology|lip]]'''
*'''Hypoplastic turbinates'''
===Ciliary dyskinesia===
*Immotile cilia syndrome
*Defect of microtubules of all ciliates cells, including spermatozoa
*Important factor in recurrent canine [[Nasal cavity - inflammatory|rhino]][[Paranasal Sinuses Inflammatory - Pathology|sinusitis]], [[Bronchi and Bronchioles Inflammatory - Pathology|bronchitis]] and [[Lungs - inflammatory|pneumonia]]
===Brachycephalic airway syndrome===
*Stenotic nares, excessive lenght of [[Soft Palate - Anatomy & Physiology|soft palate]]
*All brachycephalic dog and cat breeds, e.g. English bulldog, Pekinese, Boxer etc.
==In Horses==
===Atheroma===
*= '''Epidermal inclusion cyst'''
*Cyst in nasal diverticulum
*Uncommin congenital disorder
*Sometimes identified as 'sebaceous cyst' as contents resemble sebum
*Contents composed or squamous cells, odourless, oily
*Soft, mobile, not painful
===Alar fold stenosis===
*Mucocutaneous structure from alar cartilage to rostral aspect of ventral nasal concha
*Uncommon
*Noise on inspiration or expiration
*Rarely impairs respiratory capacity
===Wry nose===
*''Campylorrhinus lateralis''
*Congenital deviation and shortening of premaxillae, nasal bones and nasal septum