ADENOCARCINOMA IN PLEURAL EFFUSION Figure 3-77 ADENOCARCINOMA IN PLEURAL EFFUSION While the nuclear features of malignancy are seen at the periphery, evaluation of the entire cluster requires changing the focal plane in a 3-D structure. More about this image found in ADENOCARCINOMA IN PLEURAL EFFUSION While the nuclear features of malignanc...

REACTIVE MESOTHELIAL CELLS IN PLEURAL EFFUSION Figure 3-78 REACTIVE MESOTHELIAL CELLS IN PLEURAL EFFUSION The flat sheet is in focus throughout, and the cells are relatively uniform with a pavemented appearance. More about this image found in REACTIVE MESOTHELIAL CELLS IN PLEURAL EFFUSION The flat sheet is in focus ...

SMALL CELL CARCINOMA IN EFFUSION Figure 3-79 SMALL CELL CARCINOMA IN EFFUSION The cell block shows uniform chromatin, nuclear molding, and scant cytoplasm, supportive diagnostic features. More about this image found in SMALL CELL CARCINOMA IN EFFUSION The cell block shows uniform chromatin, n...

MALIGNANT MELANOMA IN EFFUSION Figure 3-80 MALIGNANT MELANOMA IN EFFUSION A,B: Nuclear enlargement with prominent nucleoli and moderate amount of cytoplasm on thin prep cytology (A)and cell block histology (B). C: Neither preparation reveals pigment. Immunohistochemistry for HMB45 can be useful ... More about this image found in MALIGNANT MELANOMA IN EFFUSION A,B: Nuclear enlargement with prominent nuc...

REACTIVE EFFUSION Figure 3-85 REACTIVE EFFUSION Clusters and cellularity can be seen in reactive effusions. More about this image found in REACTIVE EFFUSION Clusters and cellularity can be seen in reactive effusio...

PRIMARY EFFUSION LYMPHOMA Figure 6-1 PRIMARY EFFUSION LYMPHOMA Sheets of monotonous large blastic lymphoid cells are present within a cell block from a pleural effusion. More about this image found in PRIMARY EFFUSION LYMPHOMA Sheets of monotonous large blastic lymphoid cell...

PRIMARY EFFUSION LYMPHOMA Figure 6-2 PRIMARY EFFUSION LYMPHOMA The cells have prominent single nucleoli and focally show plasmacytoid features. More about this image found in PRIMARY EFFUSION LYMPHOMA The cells have prominent single nucleoli and foc...

PRIMARY EFFUSION LYMPHOMA Figure 6-3 PRIMARY EFFUSION LYMPHOMA Tumor cells are positive for HHV8 latency-associated nuclear protein (LANA). More about this image found in PRIMARY EFFUSION LYMPHOMA Tumor cells are positive for HHV8 latency-associ...

ACUTE AND CHRONIC EFFUSION Figure 8-2 ACUTE AND CHRONIC EFFUSION Both neutrophils and lymphocytes are present within proteinaceous debris. A cluster of mesothelial cells shows mild reactive atypia. More about this image found in ACUTE AND CHRONIC EFFUSION Both neutrophils and lymphocytes are present wi...

LYMPHOCYTIC EFFUSION Figure 8-3 LYMPHOCYTIC EFFUSION Most cells are small lymphocytes without atypia, mixed with a few plasma cells and histiocytes. More about this image found in LYMPHOCYTIC EFFUSION Most cells are small lymphocytes without atypia, mixe...

MESOTHELIAL HYPERPLASIA Figure 3-100 MESOTHELIAL HYPERPLASIA Mesothelial hyperplasia in a 65-year-old patient with pleural effusion and lung cancer. There are clusters of mesothelial cells within fibrous tissue, mimicking mesothelioma. More about this image found in MESOTHELIAL HYPERPLASIA Mesothelial hyperplasia in a 65-year-old patient w...

HEMOTHORAX DUE TO IATROGENIC INJURY Figure 8-14 HEMOTHORAX DUE TO IATROGENIC INJURY Left: Atypical epithelioid cells were seen in a blood-stained pleural effusion, and a cell block was subsequently created. Right: The cell block shows clusters of histologically normal liver parenchyma, presumabl... More about this image found in HEMOTHORAX DUE TO IATROGENIC INJURY Left: Atypical epithelioid cells were ...

DIFFUSE MESOTHELIOMA: PLEURA Figure 3-3 DIFFUSE MESOTHELIOMA: PLEURA Left: Thoracoscopic appearance of diffuse mesothelioma involving the parietal pleura shows multiple yellow-white nodules as well as diffuse growth. Normal pleura is on the left. A large pleural effusion is present. (Courtesy of ... More about this image found in DIFFUSE MESOTHELIOMA: PLEURA Left: Thoracoscopic appearance of diffuse mes...

SIMPLE AND ATYPICAL MESOTHELIAL HYPERPLASIA Figure 8-8 SIMPLE AND ATYPICAL MESOTHELIAL HYPERPLASIA A,B: Simple: A single layer of mildly atypical mesothelial cells lines chronically inflamed fibrotic pleura (A). An effusion contains an aggregate of histiocytes to the right of a small sheet of ben... More about this image found in SIMPLE AND ATYPICAL MESOTHELIAL HYPERPLASIA A,B: Simple: A single layer of...