2. Resection
Removal of a tumor by incising through uninvolved tissues
around the tumor, thus delivering the tumor without direct
contact during instrumentation.
Also known as en bloc resection.
4. I. Marginal/Segmental Resection
Resection of a tumor without disruption of the continuity of
the bone.
Surgical technique
Resected specimen should include the lesion and 1cm bony margins around the
radiographic boundaries of the lesion.
Reconstruction limited to replacing lost osseous structure (alveolus)
5. I. Marginal/Segmental Resection
Surgical technique
Full thickness mucoperiosteal flap developed
from bone to be removed.
Air driven surgical burs - section bone
Determine if tumor has perforated the cortical plates and
invaded adjacent soft tissues .
• sacrificing tissue may be necessary
• supraperiosteal dissection of involved bone
Send specimens to pathologists for histopathologic exam.
6. Marginal or Segmental resection of
ameloblastoma
Intraoral exposure of mandible and
osseous cuts made around lesion
leave inferior border intact.
Intraoral defect after
removal of lesion
7. …cont’d(Marginal/Segmental resection of
ameloblastoma)
Radiographic appearance of the
lesion.
Its relationship to inferior
border of mandible is
demonstrated.
Radiographic appearance
immediately after graft placement
8. II. Partial Resection
Resection of a tumor by removing a full-thickness portion of
the jaw.
In the mandible, this can vary from a small continuity defect to
a hemimandibulectomy
Jaw continuity is disrupted.
12. IV. Composite resection
Resection of a tumor with bone, adjacent soft tissues, and
contiguous lymph node channels.
This is an ablative procedure used most commonly for malignant
tumors.
Surgical approach for treating cancer of the oral cavity and
oropharynx, results in considerable functional and cosmetic
deformity.
13. Squamous cell carcinoma of left posterior
mandible.
Neck dissection and Segmental resection of cancer
has been completed, and a titanium reconstruction
bar placed.
The neck lymph nodes and left
mandible cancer specimen.