Abstract
EUS-FNA is widely used for tissue acquisition of intra-abdominal mass. Cytological analysis from the FNA specimens, however, can be challenging especially when differentiating types of malignancy is needed due to limited tissue quantity. Cell block preparation offers histology and immunohistochemistry examination which potentially beneficial. Nonetheless, the data on its usefulness is scarce. Aims: To assess the diagnostic accuracy of combined cytology and cell block obtained from EUS-FNA of intra-abdominal mass and to assess the prognostic factors of tissue adequacy for both techniques.
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