Pathnologic @pathnologic
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Pathology - Castleman disease. 

Mediastinal mass in a younger woman.

Histologic Features of Castleman disease, hyaline vascular
Pathology - Castleman ... disease. ... in paracortical blood ... #Pathology #Smear ... #Microscopy #Clinical
Acute promyelocytic leukemia (blood). Typical morphologic features are bilobed ("butterfly") nuclei with dispersed chromatin, subtle to
promyelocytic leukemia (blood ... leukemia #APL #APML #Pathology ... #Hematology #Clinical
Plasma cell leukemia with extensive rouleaux formation. Aggressive disease & patients typically younger than other forms
Aggressive disease ... rouleaux #formation #Clinical ... #Smear #Hematology ... #Pathology
Acute Graft versus Host disease: vacuolar interface dermatitis w/ lymphoexocytosis, dyskeratotic keratinocytes, notable satellite cell necrosis.
Graft versus Host disease ... #versus #Host #disease ... #Pathology #Microscopy ... #Dermatology #Clinical
Megaloblastic neutrophils in bone marrow.

So-called "giant bands" and "giant metamyelocytes" (blue circles) are 1.5-2 times the
#neutrophils #BoneMarrow ... #Smear #Hematology ... #Pathology #Clinical
Peripheral blood findings in microangiopathic hemolytic anemia.  DIC is a clinical and laboratory diagnosis, not
Peripheral blood ... DIC is a clinical ... hemolytic #anemia #Hematology ... #Pathology #Smear
Myeloma: In this BM core, most plasma cells contain cytoplasmic immunoglobulin (Russell bodies).

They're difficult to identify
#PlasmaCells #BoneMarrow ... #Clinical #Pathology ... #Hematology
Aldosteronoma — Spironolactone Bodies 

1. Spironolactone is often used to treat hypertension caused by hyperaldosteronism, and
Red blood cells ... Spironolactone #Bodies #Pathology ... #Clinical #Gross
Autoagglutination should also be distinguished from “Rouleaux formation” wherein normal blood tends to form stacks on
wherein normal blood ... #Clinical #Pathology ... #Blood #Smear # ... Rouleaux #Formation #Hematology
Peripheral blood smear of a patient with tick bite and PCR positive for Ehrlichia ewingii.

Ehrlichia ewinqii
Peripheral blood ... Smear #Morulae #Hematology ... #Pathology #Microscopy ... #TickBite #Clinical