<prompt> Breast conservation surgery for breast cancer is indicated in one of the following conditions:T1 breast tumorMulticentric tumorExtensive in situ cancerT4b breast tumor  <response>: Ans. is a i.e. breast tumour V Extensive in situ cancer Its quite sure that for Multicentric tumor and T4b breast tumor conservative surgery is not indicated.Multicentricity means occurrence of a second breast cancer outside the breast quadrant of the primary cancer cf: Multifocality refers to the occurrence of a second cancer within vicinity or in the same breast quadrant as the primary cancerT4b Breast tumor implies - tumor of any size with skin involvement cf: T4a implies tumors of any size with chest involvement Both T4a T4b are relative contraindication for Breast Conservative SurgerySo we are left with two optionsT1 breast tumor and Extensive in situ cancerT1 breast tumour means tumor 2 cm in sizeBCT is done in T1 tumors unless some contraindications are presentExtensive in situ cancer Here the examiner is talking about extensive intraductal component - EICEIC is a pattern of DC1S that is seen associated with invasive carcinoma.The above mentioned book writes - At our institution EIC positive tumors are defined as invasive carcinomas that show the simultaneous presence of prominent DCIS within the tumor usually comprising 25 or more of the area of the tumor and DCIS beyond the edges of the invasive tumor. Also included among EIC positive cases are tumors that are predominantly DCIS with one or more foci of microinvasion.The significance of EIC positive tumors is that in these tumors the intraductal involvement is more extensive than can be appreciated clinically or at the time of surgery. Therefore EIC positive patients who undergo a limited resection of the clinically evident- tumor frequently have considerable residual DCIS in the vicinity of the tumor site. This earlier led to increased recurrence in EIC positive tumors managed by BCT.But, now these tumors are not a contraindication for BCT, provided that microscopically negative margins can be obtained Ref: Washington Manual of Surgery 4the, p 533. More careful mammographic pathological evaluation are necessary on EIC positive tumors to define the extent of the lesion and to determine the adequacy of excision.But if one answer is to be chosen, it would be option a i.e. T1 breast tumor.For complete management of Breast carcinoma Refer to Chapter- Breast in our Surgery for PGMEE 