Patients receive carboplatin intravenously (IV) over 30 minutes on day 1, gemcitabine hydrochloride IV over 30 minutes on days 1 and 8, and oral thalidomide once daily on days 1-21. Treatment repeats every 21 days for 3 courses in the absence of disease progression or unacceptable toxicity. Within 2-6 weeks after the completion of chemotherapy, patients with resectable tumors undergo surgical resection.