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
Lymphadenitis #HSV #Pathology ... #Microscopy #Clinical ... #LymphNode
Borrelia recurrentis Infection - Spirochetes were visible (arrows), a finding that suggested louseborne relapsing fever #Clinical
relapsing fever #Clinical ... #Pathology #BorreliaRecurrentis ... Recurrentis #Smear #Microscopy ... #NEJM
Excoriated papules with honey-colored crusting were present on the abdomen, back (Panel A), arms, and legs.
mite under light microscopy ... #Clinical #Derm ... #Pathology #Scabies ... #Microscopy #Rash ... #NEJM
Pathology - Castleman disease. 

Mediastinal mass in a younger woman.

Histologic Features of Castleman disease, hyaline vascular
Pathology - Castleman ... disease. ... #Castleman #disease ... #Pathology #Smear ... #Microscopy #Clinical
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
Lymphadenitis #PatternC #Pathology ... #Microscopy #LymphNode ... #Clinical
Comparison of basophils and mast cells (in bone marrow).

#Basophils #MastCells #Pathology #Marrow #Smear #Microscopy #Comparison #Table
Basophils #MastCells #Pathology ... Marrow #Smear #Microscopy ... Comparison #Table #Clinical ... #Diagnosis
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Lymphadenitis #Pathology ... #LymphNode #Clinical ... #Microscopy
African Trypanosomiasis - The examination was notable for the two erythematous lesions, each measuring 3 to
rhodesiense) (Panel B) #Clinical ... #Derm #Pathology ... #Smear #Microscopy ... TrypanosomaBrucei #NEJM
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
Disseminated Cysticercosis - Magnetic resonance imaging (MRI) of the head revealed diffuse hyperintense septated cystic lesions
confirmed the diagnosis ... #Clinical #Radiology ... #Pathology #MRI ... Taenia #Solium #Microscopy ... #NEJM