Question 40 (part 2) · LDEK · Cysts of the jaws
Choose true statements regarding the cysts of maxillary sinuses:
1) clinical and radiological image of retention cyst and pseudocyst of maxillary sinus is almost identical;
2) the most common location of retention cyst is the maxillary sinus floor;
3) myxoma is one of the possible causes of silent sinus syndrome;
4) retention cyst develops due to accumulation of inflammatory exudate between the floor mucosa and periosteum;
5) asymptomatic retention cyst of maxillary sinus floor is a contraindication for sinus lift procedure.
Correct answer is:
2) the most common location of retention cyst is the maxillary sinus floor;
3) myxoma is one of the possible causes of silent sinus syndrome;
4) retention cyst develops due to accumulation of inflammatory exudate between the floor mucosa and periosteum;
5) asymptomatic retention cyst of maxillary sinus floor is a contraindication for sinus lift procedure.
Correct answer is:
- A. 1,4.
- B. 1,3.
- C. 2,3,5.
- D. 3,4.
- E. 1,2,3.
Hint
Separate the mechanism of a true retention cyst (duct obstruction) from that of a pseudocyst (exudate beneath the mucosa).
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