Macroscopic on Cite Evaluation of EUS-FNA Specimen of Gastrointestinal Tumours With Everyday Needle (22g EUS FNA Needle)

In order for the diagnosis of digestive system tumors and their appropriate treatment afterward, the type of these tumors should be determined by the pathologist. Pathology doctors need sufficient tissue (a small part of the organ thought to be diseased) to make a diagnosis. Tissue samples were taken from the patients by biopsy procedure. It is examined with microscopes by performing various staining and occasionally it is reported that sufficient tissue cannot be provided to make a diagnosis. In this case, patients may be subjected to repeated biopsy procedures. The aim of this study is to investigate whether the biopsy material obtained by endoscopic ultrasonography (EUS) is sufficient for the diagnosis of the pathology physician with the naked eye. Researchers will try to determine to what extent the physician performing the biopsy procedure can predict whether the tissue he has obtained is sufficient for the pathologist. In this way, researchers think that fewer biopsy repetitions will be needed in the future.