title: Transgastroscopic ultrasonography.
abstract: A newly designed ultrasonography probe is presented which can be advanced through the instrumentation channel of an operative endoscope (TGF-Olympus). The A-scan allows the differentiation between solid and cystic masses in the upper abdomen leading to gastric impression. Guided puncture of pancreatic pseudocysts is based on a solid diagnosis and can be performed from the gastric lumen thus avoiding the development of pancreato-cutaneous fistulas.
mesh_terms: D003937:Diagnosis, Differential; D020699:Gastroscopes; D006801:Humans; D010181:Pancreatic Cyst / Q000175:diagnosis / Q000601:surgery; D010190:Pancreatic Neoplasms / Q000175:diagnosis; D013274:Stomach Neoplasms / Q000175:diagnosis*; D014463:Ultrasonography