Volume 35, Issue 11 pp. E343-E345
Case Report

Leptomeningeal carcinomatosis in sinonasal undifferentiated carcinoma

Stephen V. Liu MD

Corresponding Author

Stephen V. Liu MD

Division of Medical Oncology, Keck University of Southern California School of Medicine, USC Norris Comprehensive Cancer Center, Los Angeles, California

1441 Eastlake Avenue, Los Angeles, California. E-mail: [email protected]Search for more papers by this author
Naveed Wagle MD

Naveed Wagle MD

Department of Neurology, Keck University of Southern California School of Medicine, Los Angeles, California

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Gabriel Zada MD

Gabriel Zada MD

Department of Neurological Surgery, Keck University of Southern California School of Medicine, Los Angeles, California

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Bonnie Sun MD

Bonnie Sun MD

Department of Surgery, Keck University of Southern California School of Medicine, USC Norris Comprehensive Cancer Center, Los Angeles, California

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John Go MD

John Go MD

Department of Radiology, Keck University of Southern California School of Medicine, Los Angeles, California

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Afshin Rashtian MD

Afshin Rashtian MD

Department of Radiation Oncology, Keck University of Southern California School of Medicine, Los Angeles, California

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First published: 08 March 2013
Citations: 10

Abstract

Background

Sinonasal undifferentiated carcinoma (SNUC) is an uncommon neoplasm characterized by local extension and an aggressive course. Treatment often includes a combination of chemotherapy, radiation therapy, and surgery, although the optimal strategy remains unclear. Here, we present the first reported case of leptomeningeal carcinomatosis from SNUC.

Methods and Results

A 28-year-old man with rapidly progressive headaches, congestion, and exophthalmos was found to have a nasal mass. Biopsy revealed sinonasal undifferentiated carcinoma. He had a transient response to chemotherapy followed by a sustained response to concurrent chemoradiation. At the completion of radiation, he developed subtle neurologic findings and MRI revealed diffuse, bulky leptomeningeal spread. He was able to receive only a single fraction of external beam radiation to his spinal axis before his disease rapidly progressed, leading to respiratory failure and death.

Conclusions

Sinonasal undifferentiated carcinoma can be associated with leptomeningeal carcinomatosis, which can lead to a fulminant clinical course. Head Neck, 35: E343–E345, 2013

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