Radiation-Induced Thyroid Cancer: Gender-Related Disease Characteristics and Survival

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Abstract

Background:

Radiation exposure is a well-known risk factor for well-differentiated thyroid cancer (WDTC). However, gender disparity in disease characteristics is not completely understood. The purpose of this study was to determine the behavior of radiation-induced thyroid cancer according to gender.

Methods:

Charts of all patients diagnosed with WDTC after radiation exposure between the years 1985 and 2013 in a tertiary referral center were retrieved.

Results:

Forty-three patients were reviewed, 29 females and 14 males. Mean age of exposure for women and men were 17.1 ± 19.5 and 15.5 ± 12.5 years, respectively (P = .78). Age at diagnosis were 47.5 ± 15.5 and 41.5 ± 15 years for women and men, respectively (P = .18). Mean disease-specific survival was 44.1 and 43.7 years for women and men, respectively (P = .50).

Conclusions:

Similar disease characteristics, tumor pathology, disease-free survival, and overall survival in both genders. In sporadic well-differentiated thyroid carcinoma, female gender is associated with better tumor behavior and prognosis. However, our results suggest that women are more affected by radiation than men and therefore have the same prognosis as men.

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