Pathnologic @pathnologic
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Rouleaux formation is common in IgM gammopathy and may be particularly striking

Genevieve Crane, MD, PhD@evemariecrane

#Rouleaux #formation
Rouleaux formation ... evemariecrane #Rouleaux ... Clinical #Pathology #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
Plasma cell leukemia with extensive rouleaux formation. Aggressive disease & patients typically younger than other forms
with extensive rouleaux ... PlasmaCell #leukemia #rouleaux ... Clinical #Smear #Hematology
Hypersegmented neutrophil in a case of acute myeloid leukemia.

Dysplastic neutrophils are typically hypolobated but can be
neutrophil in a case of acute ... AML #Clinical #Hematology
Acute promyelocytic leukemia (blood). Typical morphologic features are bilobed ("butterfly") nuclei with dispersed chromatin, subtle to
Acute promyelocytic ... #Auer #Rods #Acute ... APML #Pathology #Hematology
Acute Graft versus Host disease: vacuolar interface dermatitis w/ lymphoexocytosis, dyskeratotic keratinocytes, notable satellite cell necrosis.
Acute Graft versus ... Pathology #Microscopy #Dermatology
Autoagglutination should also be distinguished from “Rouleaux formation” wherein normal blood tends to form stacks on
distinguished from “Rouleaux ... Smear #Microscopy #Rouleaux ... #Formation #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