True statements regarding patients with a mediastinal mass include:
A. Asymptomatic patients have a benign mass in over 75% of cases.
B. Symptomatic patients are more likely to have a malignant lesion than a benign lesion.
C. In a patient with a chest film demonstrating a mediastinal mass, a Tru-cut needle biopsy is a safe procedure.
D. Seminomas usually produce alpha-fetoprotein.
Answer:A
True statements regarding patients with a mediastinal mass include:
A. Asymptomatic patients have a benign mass in over 75% of cases. B. Symptomatic patients are more likely to have a malignant lesion than a benign lesion. C. In a patient with a chest film demonstrating a mediastinal mass, a Tru-cut needle biopsy is a safe procedure. D. Seminomas usually produce alpha-fetoprotein.