Difference between revisions of "Sialadenosis"

Revision as of 16:03, 1 March 2011

Description

Sialadenosis: 'non-inflammatory swelling of the salivary glands'

Usually the masses are bilateral, uniform, fluctuant and painless, unless the cause of the swelling is neoplastic.

A salivary mucocele (accumulation of saliva in sub-cutaneous tissue) or a sialolith (a stone in the salivary duct) is the usual cause of swelling.

It is most common in dogs

Clinical Signs

Often non
Retching/gulping sometimes seen
Fever and pain seen if infected
Occasionally dyspnea if obstructing the airway

Diagnosis

Palpation
Aspiration
- viscous fluid (saliva)
- often serosangiunous or golden
- cytologically indifferent from saliva
- stain for mucus with periodic acid-schiff
Sialography (rarely performed)- used to detect side of origin if difficult to palpate
Biopsy (rarely performed unless neoplasia suspected) -no significant histological abnormalities in the salivary gland biopsies.

Treatment

Aspiration to temporarily relieve pressure and reduce size of mass
Surgery for mucocele
- remove salivary gland and duct
- remove both sides if origin cannot be determined
- marsupialisation of ranula (if one is present)
- cervical drainage if removal is not anatomically possible
Surgery for Sialolith
- incise over duct and allow to heal by secondary intention

Prognosis

Very good if removal is complete

References

Blood, D.C. and Studdert, V. P. (1999) Saunders Comprehensive Veterinary Dictionary (2nd Edition) Elsevier Science
Fossum, T. W. et. al. (2007) Small Animal Surgery (Third Edition) Mosby Elsevier
Merck & Co (2008) The Merck Veterinary Manual (Eighth Edition) Merial
Slatter, D.S. (2003) Textbook of Small Animal Surgery 3rd Ed

@@ Line 1: / Line 1: @@
-{{OpenPagesTop}}
+== Description ==
-== Introduction  ==
 Sialadenosis: 'non-inflammatory swelling of the salivary glands'
-Usually the masses are bilateral, uniform, fluctuant and painless, unless the cause of the swelling is neoplastic.
+Usually the masses are&nbsp;bilateral, uniform, fluctuant&nbsp;and painless, unless the cause of the swelling is neoplastic.
-A [[Salivary Mucocele|salivary mucocele]] (accumulation of saliva in sub-cutaneous tissue) or a sialolith (a stone in the salivary duct) is the usual cause of the swelling.
+A salivary mucocele (accumulation of saliva in sub-cutaneous tissue) or a sialolith (a stone in the salivary duct) is the usual cause of swelling.
-It is most common in dogs.
+It is most common in dogs
+&nbsp;
 == Clinical Signs ==
-Often there are no clinical signs other than the presence of the masses. Retching or gulping can sometimes be seen, as can dyspnoea if the mass is obstructing the airways. Other symptoms such as fever and pain are occasionally seen if the mass becomes infected.
+*Often non
+*Retching/gulping sometimes seen
-== Diagnosis  ==
+*Fever and pain seen if infected
+*Occasionally dyspnea if obstructing the airway
-Diagnosis is often confirmed by palpation plus aspiration of the mass. Findings of the aspirate would show a golden or serosanguinous viscous fluid (saliva), which would appear cytologically indifferent from saliva.
-A stain for mucous with periodic acid-schiff can be performed if felt needed.
-Sialography can be performed but is usually only done to identify the side of origin if this cannot be detected upon palpation. Biopsies can also be taken but would show no abnormalities in the salivary gland so are considered unnecessarily invasive.
-== Treatment  ==
-Aspiration can be performed to temporarily relieve pressure but is not a permanent treatment option.
-Surgery should be undertaken to remove both the gland and duct (from both sides if site of origin cannot be determined). Marsupialisation of a ranula can be done if one is present but is a rather historical choice for this treatment in the current era.
+&nbsp;
-For a sialolith, incise over the duct and allow to heal by secondary intention.
+== Diagnosis ==
-== Prognosis  ==
+*Palpation
+*Aspiration<br>- viscous fluid (saliva) <br>- often serosangiunous or golden<br>- cytologically indifferent from saliva<br>- stain for mucus with periodic acid-schiff
+*Sialography (rarely performed)- used to detect side of origin if difficult to palpate
+*Biopsy (rarely performed unless neoplasia suspected) -no significant histological abnormalities in the [[Salivary Glands - Anatomy & Physiology|salivary gland]] biopsies.<br>
-Very good if removal is complete.
+== Treatment ==
-{{Learning
+*Aspiration to temporarily relieve pressure and reduce size of mass
-|Vetstream = [https://www.vetstream.com/canis/search?s=sialadenitis Sialadenitis]
+*Surgery for mucocele<br>- remove salivary gland and duct<br>- remove both sides if origin cannot be determined<br>- marsupialisation of ranula (if one is present)<br>- cervical drainage if removal is not anatomically possible
-}}
+*Surgery for Sialolith<br>- incise over duct and allow to heal by secondary intention
-== References  ==
+&nbsp;
-Blood, D.C. and Studdert, V. P. (1999) '''Saunders Comprehensive Veterinary Dictionary '''(2nd Edition) ''Elsevier Science ''
+== Prognosis ==
-Fossum, T. W. et. al. (2007)''' Small Animal Surgery '''(Third Edition)'' Mosby Elsevier''
+Very good if removal is complete
-Merck & Co (2008)''' The Merck Veterinary Manual '''(Eighth Edition)'' Merial''
+&nbsp;
-Slatter, D.S. (2003) '''Textbook of Small Animal Surgery '''(3rd Edition ) ''Saunders''
+== References ==
+Blood, D.C. and Studdert, V. P. (1999) Saunders Comprehensive Veterinary Dictionary (2nd Edition) Elsevier Science <br>Fossum, T. W. et. al. (2007) Small Animal Surgery (Third Edition) Mosby Elsevier <br>Merck &amp; Co (2008) The Merck Veterinary Manual (Eighth Edition) Merial <br>Slatter, D.S. (2003) Textbook of Small Animal Surgery 3rd Ed
-{{review}}
+&nbsp;
-{{OpenPages}}
+&nbsp;
-[[Category:Expert_Review - Small Animal]] [[Category:Salivary_Glands_-_Pathology]][[Category:Oral Diseases - Dog]]
+[[Category:To_Do_-_Review]] [[Category:Salivary_Glands_-_Pathology]]