Apr 15, 2021 · Extramammary carcinoma metastatic to the breast, such as ovarian carcinoma, lung carcinoma with papillary features or thyroid papillary carcinoma (J Cancer Res Clin Oncol 2013;139:77, J Surg Res 2021;261:105): Correlation of the clinical history and radiologic findings is essential Ovarian carcinoma is positive for PAX8 and WT1 Aug 13, 2021 · Solid papillary carcinoma in situ frequently demonstrates neuroendocrine differentiation. The illustrated lesion is an example of solid papillary carcinoma in situ. Solid papillary carcinoma is characterized by a solid cellular proliferation of monomorphic, atypical ductal cells with interspersed delicate fibrovascular cores. Invasive breast carcinoma of any type, with or without ductal carcinoma in situ (DCIS) Includes microinvasive carcinoma and carcinoma with neuroendocrine features . This protocol is NOT required for accreditation purposes for the following: Procedure . …