Mediastinal biopsy for indeterminate chest lesions.
D001706:Biopsy; D003937:Diagnosis, Differential; D008197:Lymph Node Excision; D008207:Lymphatic Metastasis; D008482:Mediastinum / Q000601:surgery; D011379:Prognosis; D013896:Thoracic Diseases / Q000175:diagnosis*; D013899:Thoracic Neoplasms / Q000175:diagnosis*