Cysts of soft tissues - salivary mucoceles

Question 1

2 types of salivary mucoceles?

Answer 1

mucous extravasation (90%)

mucous retention cysts (10%)

Question 2

What are the salivary mucoceles related to?

Answer 2

minor salivary glands

Question 3

contents of the salivary mucoceles?

Answer 3

cavity filled with saliva

Question 4

salivary mucoceles common or uncommon?

Answer 4

common

Question 5

Where are extravasation mucoceles located?

Answer 5

lower lip (70%)

followed by buccal mucosa and FOM

Question 6

age rage for extravasation mucoceles?

Answer 6

wide age range, nostly under 30

Question 7

colour of extravasation mucoceles?

Answer 7

bluish or translucent swelling

Question 8

clinical presentation of extravasation mucoceles?

Answer 8

lower lip, buccal mucosa, FOM
wide age range, mostly under 30

bluish or translucent swelling

history or rupture, collapse and refilling

Question 9

in mucoceles, what happens when you bite your lip n done of the salivary ducts is severed?

Answer 9

into surrounding tissue

foreign body

inflammation

have a localised area that has saliva - area of granulation tissue and saliva

Question 10

why does the extravasation cyst appear at meal time?

Answer 10

production of saliva

so swelling the dissipate and disappear

Question 11

pathogenies of extravasation cyst?

Answer 11

mucous extravasation from a ruptured duct

history of trauma

Question 12

histopathology of extravasation cyst?

Answer 12

mucin filled cystic cavity

inflamed granulation tissue lining

no epithelial lining, but possible remnant of ruptured duct

chronic inflammation reaction

macrophages with phagocytosed mucin (foamy)

Question 13

extravasation cyst epithelial lining?

Answer 13

no

has an inflamed granulation tissue lining

Question 14

what cyst?

Answer 14

extravasation cysts

non epithelial lining - macrophages appear foamy

Question 15

why do macrophages appear foamy in extravasation cyst?

Answer 15

phagocytosed mucin

Question 16

What cysts is shown?

Answer 16

retention mucoceles

Question 17

What is the retention mucocele?

Answer 17

retention of saliva within the duct

Question 18

Does retention cyst have endothelial lining?

Answer 18

yes, the salivary duct itself

Question 19

what age grup get retention mucoceles?

Answer 19

over 50

Question 20

retention mucocles more common in upper or lower lip?

Answer 20

upper lip

Question 21

pathogenesis of retention mucoceles?

Answer 21

cystic dilation of a duct

lined by epithelium

no inflammation

micro-sialoliths can form in the mucous

Question 22

Is there inflammation of retention mucoceles?

Answer 22

no - maintained in duct

mucous not exposed to tissue surrounding it

Question 23

micro-sialoliths associate with what mucoceles?

Answer 23

retention mucoceles

Question 24

What are micro-sialoliths?

Answer 24

saliva has lots of electrolytes - stones forming inside retention mucoceles

Question 25

What mucoceles is shown?

Answer 25

retention mucoceles

no inflammation and epithelial lining