Pathnologic @pathnologic
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Hypersegmented neutrophil in a case of acute myeloid leukemia.

Dysplastic neutrophils are typically hypolobated but can be
Hypersegmented neutrophil ... Dysplastic neutrophils ... Hypersegmented #neutrophils ... AML #Clinical #Hematology
Classic mucosal-dominant Pemphigus Vulgaris. Suprabasal acantholysis leaving behind a “row of tombstones” (i.e. the basal layer
mucosal-dominant Pemphigus ... mucosal #dominant #Pemphigus ... Pathology #Microscopy #Dermatology
Dysplasia in Myelodysplastic Syndrome 
 - 
Dysgranulopoiesis 
 - Dyserythropoiesis 
 - Dysmegakaryopoiesis 

#Dysplasias #MDS #Myelodysplastic
Myelodysplastic Syndrome ... Myelodysplastic #Syndrome ... #Pathology #Hematology
A non-subtle example of true Sezary syndrome.  Patient presented with erythroderma without antecedent history of
of true Sezary syndrome ... mjcascio #Sezary #Syndrome ... Smear #Microscopy #Hematology
Megaloblastic neutrophils in bone marrow.

So-called "giant bands" and "giant metamyelocytes" (blue circles) are 1.5-2 times the
Megaloblastic neutrophils ... Megaloblastic #neutrophils ... BoneMarrow #Smear #Hematology
Pretty good example of Pemphigus Vulgaris. DIF shows intercellular IgG binding throughout entire epidermis. Note there’s
good example of Pemphigus ... SGottesmanMD #Pemphigus ... Pathology #Microscopy #Dermatology