Occult cancer in specimens of reduction mammaplasty aimed at symmetrization. A multicentric study of 2718 patients.

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Date publication

mars 2015

Auteurs

Membres identifiés du Cancéropôle Est :
Pr DOLIVET Gilles, Pr MARCHAL Frédéric


Tous les auteurs :
Sorin T, Fyad JP, Delay E, Rouanet P, Rimareix F, Houpeau JL, Classe JM, Garrido I, Tunon De Lara C, Dauplat J, Bendavid C, Houvenaeghel G, Clough KB, Sarfati I, Leymarie N, Trudel M, Salleron J, Guillemin F, Oldrini G, Brix M, Dolivet G, Simon E, Verhaeghe JL, Marchal F

Résumé

Women who have undergone surgical treatment for breast cancer often benefit from a contralateral reduction mammaplasty (CRM) aimed at symmetrization of the contralateral breast unaffected by the initial cancer. In our 7-year multicentric study (12 centers) of 2718 patients, incidence of CRM cancers (CRMc) was 1.47% (n = 40) [95% CI 1.05%-2.00%]. The CRMc group had significantly more initial mammary cancers of invasive lobular carcinoma (ILC, 22.5% vs 12.0%) and ductal carcinoma in situ (DCIS, 35.0% vs 21.6%) types than the healthy CRM group (p = 0.017). 35.0% (n = 14) of patients had en bloc resection; 25.0% (n = 10) of surgical specimens were correctly oriented. En bloc resection and orientation of surgical specimens enable precise pinpointing of the CRMc. A salvage lumpectomy may be proposed as an option when margins are invaded. The histological distribution of the 40 CRMc (mean size 12.7 mm) was carcinoma in situ (CIS) 70%, ILC 12.5%, invasive ductal carcinoma (IDC) 12.5% and tubular carcinoma (TC) 5.0%.

Référence

Breast. 2015 Mar 11. pii: S0960-9776(15)00059-4