Collision tumor: invasive ductal carcinoma in association with mucosa-associated lymphoid tissue (MALT) lymphoma in the same breast

Southern Medical Journal
Joanne M QuilonCatherine Alley

Abstract

Synchronous occurrence of multiple neoplastic processes is uncommon and the relationship between breast cancer with lymphoproliferative diseases is unusual as well. Furthermore, breast involvement by malignant lymphoma is a rare event and primary breast mucosa-associated lymphoid tissue (MALT) lymphoma is even rarer. We report a patient with synchronous occurrence of malignant lymphoma of MALT type and ductal carcinoma of the breast, presenting as "collision tumor," invading each other and occurring as a single mass in the breast. Involvement of the sentinel lymph node by MALT lymphoma was demonstrated with no evidence of metastatic carcinoma. Staging bone marrow biopsy did not show involvement by malignant lymphoma or carcinoma. Our patient was treated with chemotherapy for the lymphoma. She also received radiotherapy and aromatase inhibitor as adjuvant therapy for the breast carcinoma.

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Citations

Jul 4, 2012·The Breast : Official Journal of the European Society of Mastology·T TroupisP Skandalakis
Jun 22, 2011·Pathology, Research and Practice·Xavier CatteauJean-Christophe Noël
Jul 16, 2008·Clinical Breast Cancer·Ramji R RajendranLawrence J Solin
Jul 25, 2008·Clinical Breast Cancer·Namrata Sadanand AnavekarCraig Murphy
Oct 11, 2012·Case Reports in Oncological Medicine·Edward F Miles, Laura L Jacimore
Jun 6, 2009·Irish Journal of Medical Science·B D Kelly
Apr 23, 2008·Irish Journal of Medical Science·S GuruswamyB D Kelly
Aug 27, 2013·The American Journal of Case Reports·Sebastian AranaIsabel T Rubio

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