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small animal surgery > salivary gland > Flashcards

salivary gland Flashcards

1
Q

discuss use of rads in salivary gland

A
  • Plain radiography Rarely helpful
    • May confirm diagnosis of sialolith
  • Contrast radiography (Sialography)
    • Rarely used
    • May help determine extent of salivary

involvement in cases of trauma, neoplasia,
sinus tracts, and foreign bodies

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2
Q

Subcutaneous (submucosal) accumulation of saliva within a non-epithelial, non- secretory lining

A
  • salivary mucocele
  • Most common disease of
    the salivary system in
    dogs and cats
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3
Q

gland Most commonly affected by mucocele

A
  • Sublingual salivary duct
    • monostomatic portion
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4
Q

Saliva accumulation sites for sublingual gland mucocele

A
  • Cervical mucocele
    • Intermandibular or cervical
    • accumulation
    • Most common
  • Ranula
    • Sublingual accumulation
  • Pharyngeal mucocele
    • Pharyngeal wall accumulation
    • Least common
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5
Q

Dog breeds overrepresented with
salivary mucocele

A
  • German shepherd dog (Smith, 2000)
  • Miniature poodle (Smith, 2000)
  • Pekingese
  • Dachshund
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6
Q

type of mucocele which results in Periorbital accumulation of saliva

A

Zygomatic gland mucocele

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7
Q

Clinical signs of salivary mucocele

A
  • Soft, non painful swelling
  • May be painful if in acute inflammatory

stage or if secondarily infected

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8
Q

which salivary mucocele results in respiratory distress

A

pharyngeal mucocele

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9
Q

Treatment of salivary mucocele

A
  • Surgical removal of the involved gland
    • Definitive treatment
  • Drainage of accumulated saliva
    • In conjunction with definitive treatment
    • Conservative treatment in high-risk patients
  • Aspiration of ranula or marsupialization?
  • Lancing of pharyngeal mucocele
    • To relieve respiratory distress
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10
Q

discuss how Sialoadenectomy is done

A
  • Lateral approach:
  • with the patient in lateral

recumbency,

  • an incision is made over the mandibular

salivary gland

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11
Q

discuss sialodectomy in mandibular and sublingual glands

A
  • Excision of mandibular and sublingual

salivary glands

  • Mandibular gland too closely associated with

sublingual gland to allow

  • excision of only the sublingual gland
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12
Q

5
Prognosis for salivary mucocele

A
  • Excellent prognosis
  • Recurrence after mandibular/sublingual gland resection
    • Less than 5%
    • Inadequate excision
    • Failure to remove enough of the polystomatic sublingual gland
  • Operation of the wrong side
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13
Q

Salivary duct stones

A

sialoliths

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14
Q

most commonly affected gland (dogs) by sialoliths

A

Parotid

obstruction of the duct leads to painful swelling

not a mucocele

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15
Q

dx for sialoliths

A

Palpation
Radiography

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16
Q

tx for cealoliths

A

Removal through oral incision over duct at site of sialolith

17
Q

Sialoadenitis

A

Primary disease (rare) or secondary to trauma or systemic infection (viral?)

18
Q

ddx for sialodenitis

A

Mucocele
Neoplasia

19
Q

which salivary gland is mostly affected by sialodenitis

A
  • Zygomatic salivary gland
  • May lead to retrobulbar abscess
20
Q

cause of the parotic fistula

A

thought to be caused by trauma to the parotid duct

21
Q

tx for parotid fistula

A

Ligation of the parotid duct results in atrophy
of the gland by the 5th day

22
Q

salivary gland tumors in dogs

A

no breed predilection

uncommon

parotid mostly

23
Q

salivary gland tumors in cats

A

uncommon

siamese cats

mostly mandibular gland

24
Q

tx for salivary tumors

A

radiotherapy

remember that adenocarcioma is the most common neoplasia of salivary glands

25
Q

dz/condition causing Salivary Gland Enlargement

A
  • Canine Necrotizing Sialometaplasia
    • Mandibular salivary gland necrosis; ptyalism, lip
    • smacking, gulping, dysphagia, and pain.
    • Terrier breeds
    • Anticonvulsivant medication
  • Canine Sialadenosis
    • Response to treatment with phenobarbital is rapid
    • Some consider these as separate entities
  • Mandibular gland most commonly affected
    • Less commonly zygomatic
26
Q

salivary glands most affected by mucocele

A

Sublingual salivary duct

27
Q

how to tx mococele

A

remove both subligual n mandibular s. gland

28
Q
A

small animal surgery (7 decks)

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