This week's artwork was donated by Lonny, a pediatric cancer patient who received treatment at The Children's Hospital of Philadelphia .
Primary treatment is usually surgical removal with en bloc resection for invasive tumors.
Thymomas rarely metastasize outside of the chest. Preoperative radiation appears to offer no major survival advantage. Recurrences may be surgically resected in some situations. Postoperative adjuvant radiation therapy is recommended for those patients with the invasive form of thymoma. A histologic classification has been proposed that has been shown to correlate with prognosis.