Metastases to Level IIB in Oral Cavity Cancers: Is there a Possibility of Super Selective Neck Dissection?

Autor: Elengkumaran, S., Puneet, C., Sabitha, K. S.
Předmět:
Zdroj: Journal of International Oral Health; 2016, Vol. 8 Issue 1, p71-74, 4p, 4 Color Photographs, 3 Charts
Abstrakt: Background: One of the common problems associated with supraomohyoid neck dissection (SOHND) is shoulder syndrome due to spinal accessory nerve (SAN) dysfunction. This prospective study investigated the incidence of cervical node metastasis in sublevel IIB lymph nodes to determine the oncologic safety of preserving these nodes during SOHND for oral cavity cancers (other than cancer tongue) with clinically negative neck (cN0), thus avoiding associated morbidity related to SAN dysfunction. Materials and Methods: A total of 101 oral cancer patients (other than cancer tongue) with cN0 who underwent SOHND (Levels I-III) between March and December 2010 were studied. Intraoperatively, sublevels IIB and IIA were dissected separately, labeled and subjected to histopathology to reveal the presence of sublevel IIB metastasis. The clinicopathological characteristics, such as perineural, perivascular and perilymphatic invasion, and tumor depth, were also recorded. Postoperatively, the patients were tested for signs of shoulder syndrome clinically. Results: Number of nodes per patient varied from 0 to 9 and the mean value was four. Of the 101 patients, the histopathology reports of 95 patients showed reactive nodes. Only six patients (6%) demonstrated malignancy of which one presented with the perinodal spread. Postoperatively, none of the patients presented with signs of shoulder syndrome. Conclusion: Of the total patients assessed, only 6% of the cases presented metastasis to sublevel IIB lymph nodes. Though the percentage of cases showing metastasis was very less, the benefits of preserving functions of SAN has to be weighed against possibly reduced oncological control. Since the primary goal of any cancer resection surgery is the oncological clearance and safety, sublevel IIB remains an important region to be incorporated in elective neck dissections for primary oral cavity cancers. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index