Fat necrosis in level I oncoplastic breast-conserving surgery focusing on a modified round block technique.
Breast Cancer
; 27(4): 567-572, 2020 Jul.
Article
in En
| MEDLINE
| ID: mdl-31933122
ABSTRACT
The modified round block technique (MRBT) is a level I oncoplastic breast-conserving surgery (OBCS), which contains a very wide glandular flap created by extensive dual-plane undermining that is achieved by entire subcutaneous dissection and approximately 50% dissection of the breast parenchyma from the pectoralis muscle. A retrospective analysis was performed for 100 patients who underwent OBCS using MRBT from February 2009 to October 2017. The incidence of positive margin was 7.0% (seven cases), and there has been no local recurrence during a median follow-up period of 68 months. Short- and long-term complications included fat necrosis (11.0%), infection (4.0%), and hematoma formation (4.0%). When patients were divided into two groups based upon the preoperative mammography findings, fat necrosis occurred in 5.2% of the patients with extremely dense or heterogeneously dense mammography, and in 19.0% of patients with scattered fibroglandular or entire fat mammography, which showed a statistically significant difference. Therefore, in level I OBCS, the extent of dual-plane undermining should be minimized to less than 50% of the total parenchyma in fatty breasts.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Postoperative Complications
/
Breast Neoplasms
/
Mastectomy, Segmental
/
Mammaplasty
/
Fat Necrosis
Type of study:
Diagnostic_studies
/
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Adult
/
Aged
/
Female
/
Humans
/
Middle aged
Language:
En
Journal:
Breast Cancer
Journal subject:
NEOPLASIAS
Year:
2020
Document type:
Article
Affiliation country:
Japón
Publication country:
JAPAN
/
JAPON
/
JAPÃO
/
JP