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Oral Surgery > Odontogenic Dz of Mx sinus > Flashcards

Odontogenic Dz of Mx sinus Flashcards

1
Q

What are the four pair of paranasal sinuses?

A
  1. Maxillary
  2. Frontal
  3. Ethmoidal
  4. Sphenoidal
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2
Q

Into what nasal meatus does the maxillary sinus drain?

A

Middle meatus

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3
Q

What shape does the maxillary sinus make at birth vs. in adulthood?

A

Tubular at birth

Pyramidal as an adult

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4
Q

What is the posterior/apex border of the maxillary sinus?

A

zygomatic process of maxilla

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5
Q

What is the anterior border of the maxillary sinus?

A

Nasal surface of maxilla

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6
Q

What is the superior border of the maxillary sinus?

A

orbital surface of the maxilla

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7
Q

What is the inferior border of the maxillary sinus?

A

alveolar process of maxilla

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8
Q

What four arteries supply the maxillary sinus?

A

Facial, maxillary, infra-orbital, and greater palatine

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9
Q

What is the venous drainage of the maxilla?

A

Anteriorly = sphenopalatine vein
Posteriorly = pterygoid veins
(plexus is posterior and communicates with cavernous sinus)

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10
Q

What nerves innervate the maxilla?

A

ASA, MSA, PSA, infra-orbital, and greater palatine

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11
Q

What kind of epithelium surrounds the space of the maxillary sinus?

A

ciliated columnar

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12
Q

Which of these are functions of the mx sinus?

a. warming inspired air
b. resonance of voice
c. produce bacterial lysozyme
d. store mucus

A

a. warming inspired air
b. resonance of voice
c. produce bacterial lysozyme

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13
Q

What are some techniques to examine the mx sinus?

A

palpation, percussion, and transillumination, x-ray, CT, ultrasound

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14
Q

Agenesis, aplasia/hypoplasia, and supernumery mx sinuses all constitute what kind of pathologies?

A

Developmental anomalies

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15
Q

When the inflammation develops in the sinus either due to infection or allergy it is termed ________.

A

sinusitis

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16
Q

What is the most common disease involving the maxillary sinus?

A

Sinusitis

17
Q

Sinusitis lasting between 3 weeks and 3 months is considered what?

A

Subacute sinusitis

18
Q

What are two frequent etiologic viral causes of sinusitis?

A

Rhinovirus

Influenza virus

19
Q

Diagnose this pt.
Complaints of pressure and heaviness on left side, pain on left side of face that worsens upon bending position, and frequent headaches.

A

Acute sinusitis

20
Q

Ephedrine sulphate, phenylephrine, and zylometazoline are examples of what kind of sinusitis treatment?

A

nasal decongestants

21
Q

What antibiotics could you prescribe for a non-odontogenic related sinusitis?

A

Bactrim, augmentin, azithromycin, or cefdinir

22
Q

What antibiotics could you prescribe for an odontogenic related sinusitis?

A

Amoxicilin, clindamycin, or metronidazole

23
Q

Invasion of the maxillary sinus and establishment of direct communication with the oral cavity is referred to as an _____________.

A

oro-antral fistula

24
Q

What type of epithelium lines a fistula?

A

stratified squamous

25
Q

What are influencing factors of oro-antral fistulas?

A

Hypercementosis, density of alveolar bone, size of sinus, apical pathosis, attached granulomas, rough extraction, cyst or tumor, periodontitis

26
Q

Bubbling of blood from the socket or nostril might be a sign of what?

A

A mx sinus fracture or fistula

27
Q

What causes a pseudocyst?

A

Accumulation of serum under the sinus mucosa

28
Q

What is the etiology of retention cysts?

A

Blockage of mucus ducts within the mucus secreting glands of the sinus mucosa.

29
Q

What is the most common malignancy involving the mx sinus?

A

Squamous cell carcinoma (80%)

30
Q

Exposure to African Mahogany dust increases risk for what?

A

Adenocarcinoma of mx sinus

31
Q

People in _____ and _______ industries are prone to develop cancer of mx sinus.

A

Nickel and Chrome

32
Q

What are some clinical features of a mx sinus tumor?

A

nasal obstruction, recurrent sinusitis, cranial neuropathy, facial paresthesia, proptosis, diplopia

Oral Surgery (8 decks)

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