Diseases of Bone - pseudocysts

Question 1

what is another name for the pseudocyst of maxillary sinus

Answer 1

antral pseudocyst

Question 2

how does the pseudocyst of the maxillary sinus present

Answer 2

dome shaped lesion on the floor of the maxillary sinus covered in sinus epithelium

Question 3

what are the other names for the submandibular salivary gland defect

Answer 3

• stafne cyst
• static bone cyst/cavity
• latent bone cyst

Question 4

describe the submandibular salivary gland defect where its located and the tx

Answer 4

• lingual developmental mandibular salivary gland depression
• developmental defect- lobe of submandibular gland fills defect
• well defined radiolucent area
• between mandibular canal and inferior border
• no treatment required

Question 5

what are the other names for the traumatic bone cyst-

Answer 5

• idiopathic bone cavity
• solitary bone cyst
• hemorrhagic bone cyst
• simple bone cyst
• unicameral bone cyst

Question 6

describe the traumatic bone cyst and the origin

Answer 6

• empty cavity - not a true cyst
• trauma - hemorrhage theory of origin

Question 7

how does the traumatic bone cyst present and what is its predilection

Answer 7

• male (2:1)
• teenagers - young adults
• mandible
• lucency
• scalloped border frequent
• asymptomatic
• expansion rare (20%)
• vital teeth
• biopsy initiated healing

Question 8

describe the aneurysmal bone cyst and its predilection

Answer 8

• young individuals below 20
• rapidly growing may blow out the cortex, painful
• mandible most commonly
• lucency, frequently multilocular

Question 9

what are the surgical findings of the aneurysmal bone cyst

Answer 9

• ballooning dilation of bone
• blood welling up from within the cavity, like a blood- soaked sponge
• fleshy aggregates of tumor surroudning cystic spaces filled with blood
• hemosiderin pigmentation

Question 10

what is the histology of the aneurysmal bone cyst

Answer 10

• not a true cyst
• cyst like cavities filled with blood
• multinucleated giant cells