Changes

CytologicallyYoursCoW20131209Cytology1.jpg|4x magnification of a 4R lymph node. There Groups of cohesive epithelial appearing cells can be seen on low power. Lymphoid tissue is a polymorphic lymphoid population with scattered large atypical cellsnot easily identified.CytologicallyYoursCoW20131209Cytology2.jpg|20x magnification of paracaval a 4R lymph node. There are small lymphocytes This is a cellular specimen with background lymphoglandular bodiesgroups of cells along what appear to be a papillary or papillary-like structure. Scattered eosinophils and large atypical Single cells with prominent nucleoliare also dispersed in the background.CytologicallyYoursCoW20131209Cytology3.jpg|40x magnification of paracaval a 4R lymph node. There are On higher power, the nuclei appear mildly atypical binucleated cells among and the large atypical cellscytoplasm is delicate and finely vacuolated.CytologicallyYoursCoW20131209Cytology4.jpg|40x magnification Cell block of paracaval 4R lymph node. There The cytoplasm does not appear as vacuolated on alcohol fixed cell block material, but the nuclei are atypical binucleated cells among the large atypical cellsrelatively uniform and monotonous.CytologicallyYoursCoW20131209Cytology5.jpg|40x magnification of paracaval PAX8 on 4R lymph node. There are atypical binucleated cells among the large atypical cellsshows positive nuclear staining.