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Case Rep Oncol Med. 2014;2014:162534. doi: 10.1155/2014/162534. Epub 2014 Jul 17.

Maintenance therapy with trastuzumab in her2 positive metastatic parotid ductal adenocarcinoma.

Case reports in oncological medicine

Muhammad Shahid Iqbal, Ghazia Shaikh, Sanjoy Chatterjee, Helen Cocks, Josef Kovarik

Affiliations

  1. Department of Clinical Oncology, Northern Centre for Cancer Care, Freeman Hospital, Newcastle upon Tyne NE7 7DN, UK.
  2. Department of Oncology, Tata Medical Centre, Kolkata 700 156, India.
  3. Department of Otolaryngology, Sunderland Royal Hospital, Kayll Road, Sunderland SR4 7TP, UK.

PMID: 25136467 PMCID: PMC4127246 DOI: 10.1155/2014/162534

Abstract

Salivary ductal carcinomas (SDCs) are extremely rare and aggressive malignancies, accounting for approximately 6% of all salivary gland malignancies. One distinct feature is their resemblance to ductal carcinomas of breast. A significant percentage of SDCs overexpress Her2 and the use of targeted therapy with trastuzumab can be considered in these patients. We report a rare case of long term disease control with trastuzumab in Her2 positive metastatic parotid ductal carcinoma. Our case also highlights that isolated brain metastasis should be managed aggressively to allow optimal local control when systemic disease is under remission with trastuzumab. We have also reviewed the published literature on the use of trastuzumab in SDCs.

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