Ultrasound contrast agent delivered per os first diagnoses pharyngoesophageal tumour

Oral administration of ultrasound contrast agents has been described very little so far in medical literature. These agents are mainly administered intravenously and, less commonly, intracavitarily. We present the case of a patient with a cervical mass in whom sonographic examination with per os administration of SonoVue led to the diagnosis of a pharyngoesophageal tumour. The diagnosis was confirmed on barium swallow and endoscopy-guided biopsy.