Invasive micropapillary carcinoma is a special subtype of invasive breast cancer with characteristic morula and pseudo papillae of eosinophilic tumor cells surrounded by clear space. Association with lymphovascular invasion and early nodal metastasis makes it an aggressive tumor. We present a case of a 51 years old female with awareness of lump in left breast. On USG a presumptive diagnosis of breast carcinoma was suggested post which she underwent modified radical mastectomy. On histopathology, diagnosis of Invasive micropapillary carcinoma, breast with metastatic deposits in 23/26 lymph nodes was given. It is a rare and aggressive form of tumor with high rate of recurrence. Timely and accurate diagnosis is required for improving outcome of the patient.

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Dr Anchana Gulati

Associate Professor, Department of Pathology, IGMC Shimla, India