Diagnosis of mediastinal and left adrenal abnormalities with endoscopic ultrasonography.

Endoscopic ultrasound with fine-needle aspiration (EUS-FNA) is increasingly used for sampling of mediastinal or left adrenal abnormalities. We report two patients in whom EUS-FNA led to the diagnosis of malignancy. In one patient, left adrenal metastasis of a rectal adenocarcinoma was diagnosed, while in the other patient EUS-FNA established a plasmocytoma in the right hilum and mediastinum after several non-diagnostic interventions.