morph Flashcards
Toxic granulations: coarse, dark, abnormal azurophilic (primary) neutrophilic granules
sepsis/severe inflamm –> leukocytosis
Dohle bodies: patches of dilated ER seen as sky-blue cytoplasmic puddles
sepsis/severe inflamm –> leukocytosis
LNs:
- Large germinal centers with numerous mitotic figures.
- Nodes are swollen, gray-red and engorged
- Endothelial cell hyperplasia (lining the sinus).
Acute Nonspecific Lymphadenitis
centeroblasts
Chronic Nonspecific Lymphadenitis: follicular hyperplasia (dark)
cernteocytes
Chronic Nonspecific Lymphadenitis: follicular hyperplasia (light)
Tingible-body MF
Chronic Nonspecific Lymphadenitis: follicular hyperplasia
o Contain the nuclear debris of B cells
immunobalsts
Chronic Nonspecific Lymphadenitis: paracortical hyperplasia
-Activated T cells 3-4 times the size of resting lymphocytes
marrow hypercelular w lymphobalsts
ALL (acute lymphoblastic leukemia)
-condensed chromatin, less prominent nucleoli, cyto w/o granules
LN archetectural effacement
- C/SLL (chronics,small lymphocytic leukemia)
- follicular lymphoma
LN Proliferation centers Larger lymphocytes gathered in loose aggregates that contain mitotically active cells*
C/SLL (chronics,small lymphocytic leukemia)
Smudge cells
C/SLL (chronics,small lymphocytic leukemia)
-Small round lymphocytes in the peripheral blood with scant cytoplasm, disrupted when making the smear.
high mititc index; apop; starry sky pattern d/t phagocytosis of nuclear remnants by mf
Burkitt lymphoma
centrocytes
follicular lymphoma
centroblasts
follicular lymphoma
paratrabecular lymphoid aggregates
follicular lymphoma
Rouleaux formation
multiple myeloma (plasma cell myeloma) =plasma cell: increased M protein causes RBCs to stick together linearly in blood smears, indicative, but not specific.
Flame cells
multiple myeloma (plasma cell myeloma) =plasma cell: intracellular accumulation of degraded protein with fiery red cytoplasm
Mott cells
multiple myeloma (plasma cell myeloma) =plasma cell: multiple grapelike cytoplasmic droplets
Russel inclusions
-multiple myeloma (plasma cell myeloma)
-lymphoplasmacytic lymphoma
= plasma cell: PAS+ cytoplasmic globules
Dutcher inclusinos
-multiple myeloma (plasma cell myeloma)
-lymphoplasmacytic lymphoma:
=plasma cell: PAS+ nuclear globules
Heavily infiltrated splenic red pulp = obliteration of white pulp w a beefy red gross appearance.
hairy cell leukemia
effaced LNs; mix of variably sized malig T-cells w eos and mfs and neoangiogenesis
Peripheral T-cell Lymphoma, Unspecified
- hallmark cells: anaplastic cells with horseshoe nuclei and voluminous cytoplasm
- tumor cells surround venules, infiltrating lymphoid sinuses
Anaplastic Large Cell Lymphoma
multi-lobated nuclei (‘cloverleaf’ or ‘flower’ cells)
Adult T-cell Leukemia/Lymphoma