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C-0282 - Encapsulated papillary breast carcinoma: Anatomopathological and clinicoradiological aspects

R. A. E. K. Matsumoto, B. Bresciani, B. THOMPSON, N. de Barros; São Paulo/BR Type: Educational Exhibit
Area of Interest: Breast
Imaging Techniques: MR, Ultrasound, Mammography
Procedure: Biopsy
Special Focus: Cancer
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Learning objectives: to describe the main histological characteristics of an encapsulated papillary carcinoma (EPC), highlighting the staging difficulties that arise from the absence of the myoepithelial cell layer; to describe the typical imaging findings of EPCs in the methods available nowadays; to illustrate the[...]

Background: Encapsulated papillary breast carcinomas (EPC), also known as intracystic or encysted papillary carcinomas, are rare tumors, representing less than 2% of all breast cancers. This subtype of breast tumor mainly affects elderly postmenopausal women with clinically palpable changes or bloody nipple dis[...]

Findings and procedure details: Histological aspects Encapsulated papillary carcinoma is a subtype of papillary carcinoma, located in dilated ducts which may extend to peripheral branches, and is characterized by thin fibrovascular cores with neoplastic epithelial cells of low or intermediate-grade and surrounded by a fibrous ca[...]

Conclusion: Encapsulated papillary carcinoma is a rare tumor with an excellent prognosis and that mainly affects older women. The classification of this tumor is controversial and may be interpreted as an invasive or in situ carcinoma, often clinically managed as an in situ tumor. Radiological findings are not [...]

Personal information: Renato Augusto Eidy Kiota Matsumoto renatoaekm@gmail.com São Paulo - Brazil

References: 1. Collins, L; Encapsulated papillary carcinoma. In: Lakhani, SR, Ellis, IO, Schnitt, SJ, Tan, PH, van de Vijver, MJ, eds. World Health Organization classification of tumours of the breast. Lyon, France: IARC Press, 2012; 106-107 2. Soo MS, Williford ME, Walsh R et al. Papillary carcinoma of the bre[...]

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