Fig. 1

A–D US guided transcutaneous CNB was performed in a 53-year-old male patient presented with mass at left tongue. B Transcutaneous sonography demonstrated a hypoechoic mass with irregular margins. The lesion had eroded into the midline of the tongue. C, D US guided transcutaneous biopsy was then performed with the use of an 18-gauge needle. The histologic diagnosis was squamous cell carcinomas. E–H US guided transoral CNB was performed in a 60-year-old male patient presented with mass at left lateral tongue. F Transoral sonography demonstrated a hypoechoic mass with irregular margins. G, H US guided transoral biopsy was then performed with the use of an 18-gauge needle. The histologic diagnosis was squamous cell carcinomas