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Journal of Cancer Epidemiology
Volume 2014 (2014), Article ID 680126, 5 pages
http://dx.doi.org/10.1155/2014/680126
Research Article

Incidence and Outcomes of Desmoplastic Small Round Cell Tumor: Results from the Surveillance, Epidemiology, and End Results Database

1Children’s Hospital and Medical Center, Omaha, University of Nebraska Medical Center, 8200 Dodge Street, Omaha, NE 68114, USA
2Phoenix Children’s Hospital, 1919 E. Thomas Road, Phoenix, AZ 85006, USA

Received 28 May 2014; Accepted 11 September 2014; Published 5 November 2014

Academic Editor: Lidia Larizza

Copyright © 2014 Christina K. Lettieri et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Desmoplastic small round cell tumor (DSRCT) is a rare but highly fatal malignancy. Due to the rarity of this neoplasm, no large population based studies exist. Procedure. This is a retrospective cohort analysis. Incidence rates were calculated based on sex and ethnicity and compared statistically. Gender-, ethnicity-, and treatment- based survival were calculated using the Kaplan-Meier method. Results. A total of 192 cases of DSRCT were identified. Peak incidence age was between 20 and 24 years. Age-adjusted incidence rate for blacks was 0.5 cases/million and for whites was 0.2 cases/million (). There was no statistically significant difference in survival based on gender or ethnicity. When adjusted for age, there was no statistically significant difference in survival amongst patients who received radiation therapy compared to those who did not (HRadj = 0.73; 95% CI 0.49, 1.11). There was a statistically significant survival advantage for patients who received radiation after surgery compared to those who did not (HR 0.49; 95% CI 0.30, 0.79). Conclusion. DSRCT is more common in males and in people of African-American descent. Although overall survival remains poor, radiation therapy following surgery seems to improve outcome in these patients.