MANDIBULECTOMY, MAXILLECTOMY: 89 Flashcards
what is the name of the nerve that courses trough the mandibular canal? where does it exit?
inferior alveolar nerve; exit laterally trough mental foramina as mental nerve. Is a branch of trigeminal nerve
Major blood supply to Mandible
Inferior alveolar artery, branch of maxillary artery
blood supply to maxilla
1) major palatine artery
2) infraorbital artery
most common canine oral tumors and % metastatic
1) melanoma 81%
2) scc 82/20%
3) fibrosarcoma 35%
4) osteosarcoma
5) acanthomatous ameloblastoma
oral osteosarcoma has similar survival rates compared to appendicular osteosarcoma. T or F
F. longer SVT
how are called fibromatous and ossifying epulides?
peripheral odontogenic fibroma
what nerves or arteries should be resected during rostral maxillectomy?
None
most common site for dehiscence
1) over transected bone ends bilateral rostral mandibulectomy
2) mucosa to palate suture after large maxill
common problem with hemimandibulectomy
mandibulad drift
-> orthodontic rubber
-> shorten/extract mandbular canine tooth
1 year SVR
70-90%
rate local recurrence
50%
how tumor type influence prognosis
a) high metastatic potential -> poorer survival (malignant melanoma or osteosarcoma)
b) low metastatic potential -> better survival (scc, fibrosarcoma)
how location influence local recurrence
caudal»_space; local recurrence (more diff to resect + noticed later).
radiation therapy fro oral tumors?
commonly small oral malignancies are frequently responsive to radiation»_space; than big oral malignancies.
excellent to treat microscopic volumes of residual tumor
most common oral tumor in cats
scc
with what tumors can scc be confused
eosinophilic granuloma, odontogenic tumors
severe inappetence in cats after removal of ….% of the mandible
50
