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Marginal Mandibulectomy vs Segmental Mandibulectomy
Indications and Controversies
Arch Otolaryngol Head Neck Surg. 2002;128:600-603.
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Hypothesis: When resecting a floor-of-mouth (FOM) squamous cell carcinoma that abuts
a nonirradiated mandible, if neither clinical examination nor preoperative
studies have shown evidence of bony tumor invasion and if the periosteum is
histologically positive for cancer on frozen section and the underlying bone
is grossly normal, a segmental resection of the mandible is required. A marginal
resection is never appropriate.
BACKGROUND
Historically, when an FOM tumor abutted the mandible, a complete segment
of mandibular bone was resected en bloc with the tumor.1
It was believed that the FOM lymphatics drained through the mandibular periosteum
and bone to the neck, so that en bloc resection decreased the risk of later
neck disease. Unfortunately, the segmental mandibulectomy left the patient
with a significant functional and aesthetic deficit. Once Marchetta et al2 and Carter et al3 demonstrated
that cancer spreads to the mandible by direct invasion rather than lymphatic
spread, preservation or partial . . . [Full Text of this Article]
PRO
Clinical Examination Radiographic Evaluation Intraoperative Findings Postoperative Function and Cosmesis
CON
Clinical Examination Radiographic Evaluation Intraoperative Findings Survival Postoperative Function and Cosmesis
BOTTOM LINE
Corresponding author: Mark K. Wax, MD, Department of OtolaryngologyHead
and Neck Surgery, Oregon Health and Science University, 3181 SW Sam Jackson
Park Rd, PV-01, Portland, OR 97201 (e-mail: waxm@ohsu.edu).
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