1
40
G Candelino y col. Implicancias pronósꢁcas de los márgenes quirúrgicos. Rev Argent Cirug 2019;111(3):129-141
cancer. In the same line, close margins would not be Conclusions
associated with adverse outcome in HPV-related
1
8
carcinoma .
Although there are many studies analyzing the
Probably, new intraoperaꢀve diagnosꢀc te- surgical margins in squamous carcinoma of the oral ca-
1
9
chnologies as fluorescence visualizaꢀon , spectrosco- vity, there is sꢀll no consensus regarding the prognos-
2
0
21,22
could offer more ꢀc value of close margins (1-5 mm) in terms of overall
py , or narrow band imaging (NBI)
accurate diagnoses. Narrow band imaging was imple- survival and disease-free survival. Therefore, extensive
2
1
mented by Farah et al in 2014 , and consists on the resecꢀons are oꢂen made or unnecessary adjuvant
endoscopic observaꢀon of the tumor to idenꢀfy tumor treatments are indicated without improving survival or
margins using selecꢀve wavelength reflectance magni- reducing recurrence, resulꢀng in unnecessary conse-
fying endoscopy with green light (wavelength 400-430 quences that will affect paꢀents’ quality of life.
nm) or blue light (wavelength 525-555 nm) instead of
white light. In their study, they evaluated the molecu- tent with the literature in that only histological charac-
The variables analyzed in this paper are consis-
lar changes in surgical margins determined by white terisꢀcs are predicꢀve factors.
light vs. NBI. Resecꢀon with NBI-defined margins would
Most paꢀents with close margins underwent
leave less malignant residual ꢀssue and thereby reduce adjuvant radiotherapy which could bias the results. We
the risk of local recurrence. All the studies evaluated also evaluated the benefit of adjuvant RT on overall sur-
included few paꢀents.
vival, but we failed to find any associaꢀon. This can be
The use of neoadjuvant chemotherapy could aꢃributed to the fact that when we subdivided the co-
modify the correct limit of resecꢀon. Loree et al.23 hort, the sample size decreases considerably and does
evaluated 82 paꢀents in whom tumor margins were allow obtaining staꢀsꢀcally significant results.
taꢃooed before starꢀng neoadjuvant chemotherapy.
For the future, a prospecꢀve study will be
Despite macroscopic remission was more than 90%, necessary to generate the foundaꢀons to develop an
the subsequent histopathological analysis of the spe- adequate consensus for the best treatment of these
cimen showed residual submucosal disease up to the paꢀents and for standardizaꢀon of the internaꢀonal
taꢃooed area. Therefore, the resecꢀon limit should be guidelines.
established before starꢀng neoajuvant therapy.
There are many issues to analyze, as neoad-
Finally, an internaꢀonal consensus and studies juvant treatment, which affect when deciding surgical
with greater level of evidence are required, considering margins. The implementaꢀon of new technologies and
that the NCCN is the only enꢀty that defines surgery how they will impact on paꢀents’ outcome should also
margins.
be evaluated.
Referencias bibliográficas | References
1
. Spiro RH, Guillamondegui O. Jr, Paulino AF, Huvos A G. Paꢃern of in-
vasion and margin assessment in paꢀents with oral tongue cancer.
Head Neck. 1999; 21(5):408-13.
10. Varvares MA, Poꢀ S, Kenyon B, Christopher K, Walker RJ. Surgical
margins and primary site resecꢀon in achieving local control in
oral cancer resecꢀons. Laryngoscope. 2015; 125:2298-307.
11. Maxwell JH, Thompson LDR, Brandwein-Gensler M, Weiss BG,
Canis M, Purgina B, et al. Early oral tongue squamous cell car-
cinoma sampling of margins from tumor bed and worse local
control. JAMA Otolaryngol Head Neck Surg. 2015; 141(12):1104-
110.
2
. Lin ChJ, Grandis JR, Carey TE, Gollin SM, Whiteside TL, Koch
WM, et al. Head and neck squamous cell carcinoma cell lines:
established models and raꢀonale for selecꢀon. Head Neck.
2
007;29:16388.
3
4
. Woolgar JA, Triantafyllou A. A histopathological appraisal of sur-
gical margins in oral and oropharyngeal cancer resecꢀon speci-
mens. Oral Oncol. 2005; 41:103443.
12. Ch’Ng S, Corbeꢃ-Burns S, Stanton N, Gao K, Shannon K, Clifford
A, Clark J R. Close margin alone does not warrant postoperaꢀve
adjuvant radiotherapy in oral squamous cell carcinoma. Cancer.
2013; 119(13): 2427-37.
.Eldeeb H, Macmillan C, Chrisꢀne Elwell C, Abdulla Hammod A. The
Effect of the Surgical Margins on the Outcome of Paꢀents with
Head and Neck Squamous Cell Carcinoma: Single Insꢀtuꢀon Expe-
rience. Cancer Biol Med. 2012; 9(1):29-33.
13. Lee DY , Kang SH, Kim JH, |Kim MS, Ho K , Woo JS, Kwon SY, Jung
KY Seung, Baek K. Head Neck. 2017; 40(1):1-9. Falta ꢅtulo.
14. Nason RW, Binahmed A, Pathak KA, Abdoh AA, Sándor GKB.
What is the adequate margin of surgical resecꢀon in oral cancer?
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009; 107:625-
9.
5
. Suꢃon N, Brown JS, Rogers SN, Vaughan ED, Woolgar JA. The prog-
nosꢀc implicaꢀons of the surgical margin in oral squamous cell
carcinoma. Int JOral Maxillofac Surg. 2003; 32:30-4.
6
. Gokavarapu S, Chander R, Parvataneni N, Puthamakula S. Cli-
nical Study Close Margins in Oral Cancers: Implicaꢀon of Close
Margin Status in Recurrence and Survival of pT1N0 and pT2N0
Oral Cancers. Internaꢀonal Journal of Surgical Oncology. 2014; 17:
15.-Zanoni DK, Migliacci JC, Bin Xu, Katabi N, Montero PH, Ganly I,
Shah JP. A Proposal to Redefine Close Surgical Margins in Squa-
mous Cell Carcinoma of the Oral Tongue. JAMA OtolaryngolHead
Neck Surg. 2017; 143(6):555-60.
6
-11.
7
. Leoncini E, Ricciardi W, Cadoni G, Arzani D, PetrelliL, Paludeꢄ
G, Boccia S. Adult height and head and neck cancer: A pooled
analysis within the INHANCE Consorꢀum. Head and Neck. 2014;
16. Brandwein-Gensle M. Oral Squamous Cell Carcinoma. Histologic
Riskassessment, but Not Margin Status, Is Strongly Predicꢀve of
Local Disease-free and Overall Survival. Am J Surg Pathol. 2005;
29(2): 82-6.
3
6(10):1391-5.
8
. Looser KG, Shah JP, Strong EW. The significance of “posiꢀve” mar-
gins in surgically resected epidermoid carcinomas. Head Neck
Surg. 1978; 1(2):107-11.
17. Hinni ML, Zarka MA, Hoxworth JM. Margin Mapping in Tran-
soral Surgery for Head and Neck Cancer. Laryngoscope. 2013;
123:1190-88.
9
. Smits RWH, Koljenovic S, Hardillo JA, Hove IT, Meeuwis CA, Sew-
naik A, et al. Resecꢀon margins in oral cancer surgery: Room for
improvement. Head Neck. 2016 38:E2197-E2203.
18. Molony P, Kharytaniuk N, Boyle S, Woods RSR, O’Leary G, Werner
R, et al. Impact of posiꢀve margins on outcomes of oropharyngeal
squamous cell carcinoma according to p16 status. Head & Neck.