Neoadjuvant imatinib in gastrointestinal stromal tumor of the rectum: report of a case.

Gastrointestinal stromal tumors are rare tumors of the gastrointestinal tract. Gastrointestinal stromal tumors involving the rectum are uncommon. We describe a case of a 43-year-old female with a gastrointestinal stromal tumor of the rectum who declined abdominoperineal resection.