lecture 1

Question 1

what is the only salivary gland that isn’t seromucous?

Answer 1

parotid (primarily serous)

Question 2

give the location of each gland

1. molar (cat)
2. parotid
3. sublingual
4. zygomatic
5. madibular

Answer 2

1. lingual to mandibular 1st molar
2. surround horizontal ear canal
3. rostral to mandibular gland and enclosed in the same capsule
4. ventral to zygomatic arch on floor of orbit
5. ventral to parotid gland

Question 3

1. what is ranula?
2. what is sialocele?

Answer 3

1. salivary tissue swelling below the tongue
2. cervical swelling right underneath the mandible

(pharyngeal or cervical)

Question 4

1. salivary pathology dx?

cat fun

(6 of them)

Answer 4

1. abscess, foreign body, trauma, cervicofacial actinomycosis, neoplasia, uknown cause

Question 5

1. cervical sialoceles result from what?
2. due to what?
3. what salivary gland is usually responsible?
4. what is best treatment?

Answer 5

1. disruption of a salivary gland or duct
2. obstruction, trauma, idiopathic, iatrogenic
3. sublingual
4. removal of offending gland/duct (sialoadenectomy)

(not draining/aspirating!)

Question 6

1. what is an incisional biopsy?
2. an excisional biopsy?
3. fine needle aspirates are limited to what only?

Answer 6

1. removing part of a mass
2. removing an entire mass
3. mandibular lymph node only

(metastasis only spreads to this LN ~50% of the time)

(LN biopsies are better he thinks)

Question 7

1-3. What are the three most common odontogenic tumors (in order)

Answer 7

1. peripheral odontogenic fibroma (fibromatous epulis)
2. focal fibrous hyperplasia (fibrous epulis)
3. canine acanthomatous ameloblastoma (acanthomatous Epulis)

Question 8

1-4. Most common non-odontogenic tumors?

Answer 8

1. malignant melanoma (30-40%)
2. SCC (20-30%)
3. fibrosarcoma (10-20%)
4. osteosarcoma (<10%)

(in cat 1 and 2 are switched)

Question 9

1. what is origin of peripheral odontogenic fibroma?
2. why is this important

Answer 9

1. periodontal ligament
2. will likely grow back if you just remove mass

Question 10

odontogenic vs. non-odontogenic (radiology)

1. which invades bone?
2. which displace teeth?
3. in which do teeth float?
4. rapid bone changes?
5. distinct margins?

Answer 10

1. non
2. odontogenic
3. non
4. non
5. odonto

Question 11

focal fibrous hyperplasia

1. mass that is primarily what?
2. why is removal of mass usually curative?

Answer 11

1. reactive tissue
2. origin is not periodontal (unlike Peripheral odontogenic fibroma)

Question 12

peripheral odontogenic fibroma

1. benign or malignant?
2. origin?
3. usually found in what regions?
4. growth rate?
5. how treated?

Answer 12

1. benign
2. periodontal ligament
3. premolar and incisor (can be by canine tooth though)
4. slow
5. excisional biopsy. if mass returns sx (remove teeth & periodontal ligament)

Question 13

(acanthomatous ameloblastoma)

1. malignant or benign?
2. invade what?
3. may arise from?
4. tx of choice?

Answer 13

1. benign
2. bone
3. epithelial rest of Malessez, adjacent bone, and/or periodontal ligament
4. sx (1 cm margins)

(radiation works 90% of time but can result in SCC or radiation necrosis)

Question 14

(odontontoma)

1. origin?
2. found in what age?
3. difference between complex and compound odontontomas?

Answer 14

1. epithelial or mesenchymal
2. young
3. complex - poorly differentiated

compound - denticles (teeth like) throughout tumor

Question 15

(dentigerous cysts)

1. arise from what tissue?
2. which teeth are most affected?
3. tx?

Answer 15

1. tissue surrounding crown of unerupted tooth
2. 1st premolars (often bilateral)
3. removal of tooth, curretting of cyst wall away from surrounding bone

Question 16

(malignant melanoma)

1. 80% local invasion and metastases to where?
2. masses what size good prog?
3. male or female more?
4. what kind of dogs get more?

Answer 16

1. LN and lungs
2. < 2 cm
3. male (4:1)
4. dogs with pigmented oral cavity

Question 17

(squamous cell carcinoma)

1. in what location are they highly invasive/osteolytic?
2. what rate of metastases?

Answer 17

1. gingiva
2. low

more rostral lower rate - but might be because they are more accessible and get noticed sooner

Question 18

(fibrosarcoma)

1. most common location in dogs?
2. metastases?
3. most common tx?

Answer 18

1. maxillary gingiva

hard palette too

2. rare

extensive local infiltration though

3. sx resection (1-2 cm margins usually curative)

Question 19

(parotid gland)

1. secretions exit from what?

where?

Answer 19

1. parotid papilla

apical and buccal to maxillary 4th premolar

Question 20

(zygomatic gland)

1. secretions exit what?

where?

Answer 20

1. zygomatic papilla

caudal to parotid papila

Question 21

(mandibular gland)

1. mandibular duct runs where?

terminates where?

Answer 21

1. sublingual

rostral to sublingual duct in the sublingual caruncle

Question 22

(sublingual gland)

1. monostomatic produces seromucous secretions via the sublingual salivary duct exiting where?
2. polystomatic portion has 6 to 12 small lobules of tissue where?

secretions are discharged where?

Answer 22

1. in the sublingual caruncle (or joing the mandibular duct before exiting)
2. under the mucosa of each side of the tongue

directly into oral cavity

Question 23

(nomenclature)

1. fibromatous epulis = ?
2. acanthomatous epulis = ?
3. fibrous epulis = ?

Answer 23

1. peripheral odontogenic fibroma
2. canine acanthomatous ameloblastoma
3. focal fibrous hyperplasia