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Guttural Pouch Mycosis (view source)
Revision as of 18:03, 17 February 2011
, 18:03, 17 February 2011Created page with "right|thumb|100px|<small><center>Guttural pouch mycosis (Image sourced from Bristol Biomed Image Archive with permission)</center></small> [[..."
[[Image:Guttural pouch mycosis.jpg|right|thumb|100px|<small><center>Guttural pouch mycosis (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]
[[Image:Haemorrhage in GP mycosis.jpg|left|thumb|100px|<small><center>Haemorrhage on GP mycosis (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]
*Fibrinous necrotising diphtheritic inflammatory process
*Most often caused by [[Aspergillus spp.|''Aspergillus'' spp.]]
*Tends to invade neighbouring structures - nerves (causing e.g. [[Larynx Degenerative - Pathology#Laryngeal hemiplegia|laryngeal hemiplegia]]), blood vessels (rupture of internal carotid), bones (osteitis, fusion of stylohyoid and petrous temporal bones)
**Often associated with haemorrhage (see [[Respiratory System Clinical Signs - Pathology|epistaxis]])
2. '''Guttural Pouch Mycosis''':
- Fungal infections ([[Aspergillosis#Horses|Aspergillosis]]).
- Typically affect caudodorsal medial compartment.
- Signs: painful swelling in parotid region, abnormal carriage of head and neck, nasal discharge, and the horse may be head shy.
- Erosion of the roof of the guttural pouch produces a variety of signs by damage to important structures directly related to the pouch:
a) ''Epistaxis'': nasal bleeding. Erosion of internal carotid artery severe, maybe even cause fatal haemorrhage.
b) ''Dysphagia'': difficulty in swallowing. Paresis of the pharynx and soft palate is caused by lesions involving the glossopharyngeal and vagus nerves.
c) ''Laryngeal Hemiplegia'': roaring - following vagus involvement.
d) ''Horner's Syndrome'': nasal congestion, drooping of upper eyelid, miosis, sweating and hyperaemia on same side of face. From involvement of sympathetic nerve (cranial cervical ganglion).
e) ''Facial Paresis'': rare.
f) ''Tongue Paralysis'': rare.
g) ''Vestibular Signs'' and ''Arthritis'': alanto-occipital joint - very rarely.
==Test yourself with the Guttural Pouches Pathology Flashcards==
[[Guttural_Pouches_Flashcards_-_Pathology|Guttural Pouches Pathology Flashcards]]
[[Category:Guttural Pouch - Pathology]]
[[Image:Haemorrhage in GP mycosis.jpg|left|thumb|100px|<small><center>Haemorrhage on GP mycosis (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]
*Fibrinous necrotising diphtheritic inflammatory process
*Most often caused by [[Aspergillus spp.|''Aspergillus'' spp.]]
*Tends to invade neighbouring structures - nerves (causing e.g. [[Larynx Degenerative - Pathology#Laryngeal hemiplegia|laryngeal hemiplegia]]), blood vessels (rupture of internal carotid), bones (osteitis, fusion of stylohyoid and petrous temporal bones)
**Often associated with haemorrhage (see [[Respiratory System Clinical Signs - Pathology|epistaxis]])
2. '''Guttural Pouch Mycosis''':
- Fungal infections ([[Aspergillosis#Horses|Aspergillosis]]).
- Typically affect caudodorsal medial compartment.
- Signs: painful swelling in parotid region, abnormal carriage of head and neck, nasal discharge, and the horse may be head shy.
- Erosion of the roof of the guttural pouch produces a variety of signs by damage to important structures directly related to the pouch:
a) ''Epistaxis'': nasal bleeding. Erosion of internal carotid artery severe, maybe even cause fatal haemorrhage.
b) ''Dysphagia'': difficulty in swallowing. Paresis of the pharynx and soft palate is caused by lesions involving the glossopharyngeal and vagus nerves.
c) ''Laryngeal Hemiplegia'': roaring - following vagus involvement.
d) ''Horner's Syndrome'': nasal congestion, drooping of upper eyelid, miosis, sweating and hyperaemia on same side of face. From involvement of sympathetic nerve (cranial cervical ganglion).
e) ''Facial Paresis'': rare.
f) ''Tongue Paralysis'': rare.
g) ''Vestibular Signs'' and ''Arthritis'': alanto-occipital joint - very rarely.
==Test yourself with the Guttural Pouches Pathology Flashcards==
[[Guttural_Pouches_Flashcards_-_Pathology|Guttural Pouches Pathology Flashcards]]
[[Category:Guttural Pouch - Pathology]]