Article

Apocrine differentiation in invasive pleomorphic lobular carcinoma with in situ ductal and lobular apocrine carcinoma: Case report

Department of Pathology, Marmara University Hospital, Istanbul, 81190, Turkey.
Pathology & Oncology Research (Impact Factor: 1.86). 02/2002; 8(2):151-2. DOI: 10.1007/BF03033728
Source: PubMed

ABSTRACT

Invasive pleomorphic lobular carcinoma (PLC) is a distinctive aggressive subtype of invasive lobular carcinomas (ILC). We report one case of PLC with in situ PLC and ductal carcinoma in situ with apocrine features.

Download full-text

Full-text

Available from: Erkin Aribal
  • [Show abstract] [Hide abstract]
    ABSTRACT: Breast carcinomas composed predominantly or exclusively of cells with foamy and/or granular cytoplasm have been termed histiocytoid breast carcinoma. Three cases of HBC had fine needle aspirates that were moderately cellular and composed of cells with abundant foamy and/or granular cytoplasm, arranged in loosely cohesive groups and dispersed singly. The cells showed subtle cytologic atypia, including nuclear hyperchromasia and slightly irregular nuclear outlines. Definitive cytologic diagnosis was not possible in the 3 cases, and they were reported as "suspicious for malignancy." Core biopsies of 2 cases showed a typical Indian file pattern of invasive lobular carcinoma, while the third case was composed of sheets of discohesive histiocytoid cells admixed with a prominent lymphoid infiltrate. All 3 cases were E-cadherin negative, confirming their lobular nature. HBC represents an unusual morphologic pattern of apocrine change that may be seen in lobular and ductal breast carcinomas. Recognition of these lesions is vital in that they may be mistaken for a variety of other entities composed of foamy/granular cells; some of those entities have vastly different implications for treatment and prognosis.
    No preview · Article · · Acta cytologica
  • Source

    Full-text · Article · Jan 2006
  • [Show abstract] [Hide abstract]
    ABSTRACT: Epithelial cells of fetal breast glandular structures, at the third trimester of pregnancy (28 weeks), produce GCDFP-15, in the absence of specific apocrine morphology. Apocrine epithelium of the breast may be a normal process of differentiation rather than a result of metaplasia, and it has been demonstrated that it is estrogen-receptor, progesterone-receptor and bcl-2 negative, but androgen-receptor (AR) positive. The significance of AR expression in apocrine epithelium is uncertain. Apocrine epithelium is seen in a wide spectrum of breast entities, ranging from benign lesions to invasive carcinoma. Breast cancer accounts 32% of all cancer cases among women and is the most common type of cancer in women. Little is known about breast carcinogenesis. Widely, it is accepted that breast cancer, like most other type of cancer, is being developed through the accumulation of genetic aberrations. Apocrine epithelium may reflect instability of the breast epithelium, creating an environment favouring further oncogenic alterations. In the last decade, several lines of evidence support the idea that some breast benign epithelial apocrine lesions are clonal lesions and may be considered as truly pre-malignant or precursors of breast carcinoma. Apocrine changes in many cases do not present any diagnostic difficulty; on the other hand, apocrine proliferations with cytologic atypia can be particularly difficult and challenging. The purpose of this study is to collect and highlight the areas of consensus in the literature as well as the controversial areas concerning the apocrine epithelium of the breast.
    No preview · Article · Jun 2006 · Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin
Show more