Pathnologic @pathnologic
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Path Geek - All things #pathology
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Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
Herpes Simplex Virus ... DennisOMalleyMD) #Herpes ... Microscopy #Clinical #LymphNode
Acute promyelocytic leukemia (blood). Typical morphologic features are bilobed ("butterfly") nuclei with dispersed chromatin, subtle to
I see all of these ... promyelocytic #leukemia #APL ... #APML #Pathology
A 37-year-old woman initially presented with pancytopenia and found to have leukopenia (2.1 × 103/μL) with
and started on all-trans ... In addition to APL ... myeloid leukemia (AML ... ) t(8;21), AML with ... Rods #AuerRods #APL
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
Here is a lymph ... Pathology #Microscopy #LymphNode
Here are very large, immature myeloblasts with many nucleoli. A distincitve feature of these blasts is
Here are very large ... myelogenous leukemia (AML ... Rods #AuerRods #AML
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Lymphadenitis #Pathology #LymphNode
Hypersegmented neutrophil in a case of acute myeloid leukemia.

Dysplastic neutrophils are typically hypolobated but can be
#neutrophils #AML
Prolymphocytes

In our case, the patient has T-prolymphocytic leukemia (T-PLL) not Acute Myeloid Leukemia (AML).  🔬Tumor
Myeloid Leukemia (AML
Here are the morphological hallmarks of Rhabdomyosarcoma.

 - Broken arrow sign 

 - tad-pole rhabdomyoblasts
Here are the morphological
Here is another peripheral blood smear demonstrating changes with iron deficiency anemia. Note the increased zone
Here is another