BACKGROUND
To identify and estimate the prevalence of mediastinal cysts lined by the epithelium expressing steroid receptors.
METHODS
We retrieved 19 mediastinal cysts from our pathology files from 1996 to 2004, and examined estrogen receptor (ER) and progesterone receptor (PR) expressions in the cysts.
RESULTS
Three paravertebral cysts, all in women, one bronchogenic cyst in a woman, nine ...