Presence of a micropapillary pattern in mucinous carcinomas of the breast and its impact on the clinical behavior.

Infiltrating micropapillary carcinomas (IMPC) of breast are highly angioinvasive tumors with poor prognosis. This study is based on the observation that a similar micropapillary pattern is also observed in mucinous carcinomas of breast. About 102 mucinous carcinomas were evaluated for the presence a...

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Publicado en:Breast Journal Vol. 14; no. 5; pp. 412 - 421
Autores principales: Shet T, Chinoy R
Formato: pictorial research tables/charts Journal Article
Publicado: Wiley-Blackwell Sep/Oct2008
Acceso en línea:Ver este registro en EBSCOhost
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      dt: Sep/Oct2008
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      pub: Wiley-Blackwell
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        10.1111/j.1524-4741.2008.00616.x
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        atl: Presence of a micropapillary pattern in mucinous carcinomas of the breast and its impact on the clinical behavior.
      aug:
        au:
          Shet T
          Chinoy R
        affil: Department of Pathology, Tata Memorial Hospital, Parel, Mumbai, India; tanujashet@yahoo.com
      sug:
        subj:
          Breast Neoplasms
          Decision Making, Clinical
          Neoplasms, Cystic, Mucinous, and Serous Prognosis
          Survival
          Adult
          Aged
          Breast Neoplasms Classification
          Breast Neoplasms Diagnosis
          Breast Neoplasms Physiopathology
          Breast Neoplasms Prognosis
          Cox Proportional Hazards Model
          Data Analysis Software
          Data Analysis, Statistical
          Descriptive Statistics
          Female
          Kaplan-Meier Estimator
          Log-Rank Test
          Middle Age
          Record Review
          Human
          Adult: 19-44 years
          Aged: 65+ years
          Middle Aged: 45-64 years
          Female
      ab: Infiltrating micropapillary carcinomas (IMPC) of breast are highly angioinvasive tumors with poor prognosis. This study is based on the observation that a similar micropapillary pattern is also observed in mucinous carcinomas of breast. About 102 mucinous carcinomas were evaluated for the presence and impact of this micropapillary pattern on the clinical behavior. Of these, 68 were mucinous carcinomas with a micropapillary pattern (MUMPC), 20 had MUMPC mixed with an infiltrating duct carcinoma component, two were solid variants of papillary carcinoma with mucin (SVPCMU), five had collision of the MUMPC and SVPCMU patterns and seven were mucinous carcinomas with signet ring cells (MUS). The factors negatively affecting overall survival (OAS) and disease-free survival (DFS) included the histological type of mucinous carcinoma, nodal metastases, an irregular tumor border, <50% mucin and an IMPC type of local recurrence or metastases. In the multivariate analysis, the histologic type of mucinous carcinoma and an irregular tumor border were most significant for OAS and DFS. Thus, 86% of mucinous carcinomas in this study were mucinous variants of the angioinvasive infiltrating micropapillary carcinomas. These tumors can produce IMPC type of metastases and thus should be treated aggressively.
      pubtype: Academic Journal
      doctype:
        pictorial
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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