11 results
Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
• HSV-infected cells ... Lymphadenitis #HSV #Pathology ... #Microscopy #Clinical ... #LymphNode
Comparison of basophils and mast cells (in bone marrow).

#Basophils #MastCells #Pathology #Marrow #Smear #Microscopy #Comparison #Table
Comparison of basophils ... and mast cells ... Basophils #MastCells #Pathology ... Marrow #Smear #Microscopy ... #Comparison #Table
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
seen within giant cells ... Lymphadenitis #Pathology ... #LymphNode #Clinical ... #Microscopy
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
Signet ring cell ... #SignetRing #Cell ... #Histiocytes #LymphNode ... #Pathology #Clinical ... #Microscopy
Olfactory Neuroblastoma Pathology

Morphology and other IHC clinched the diagnosis of olfactory neuroblastoma here. The tumor had
Neuroblastoma Pathology ... Morphology and other IHC ... sustentacular cells ... Neuroblastoma #Pathology ... #Microscopy #Clinical
A morphologic mosaic of NUT carcinoma: monotonous primitive cells, basophilic to clear cytoplasm, abrupt keratinization, prominent
monotonous primitive cells ... positivity for NUT1 IHC ... NUT #carcinoma #Pathology ... #Clinical #Microscopy
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
Warthin-Finkeldey type giant cells ... Monocytoid B cells ... Lymphadenitis #PatternA #Pathology ... #Microscopy #LymphNode
Rhabdoid Cells versus Rhabdomyoblastic Cells

Rhabdoid Cells:

• Prominent nucleolus 

• Paranuclear inclusions 

• Pleomorphism Ø 

• CK/EMA
Rhabdoid Cells versus ... Rhabdomyoblastic Cells ... Rhabdoid Cells ... Rhabdomyoblastic #Comparison ... #Pathology #Microscopy
Important Fungal Stains
Mycology Lab:
 • Calcofluor white - Fluorochrome that binds glucans and chitin in fungal
chitin in fungal cell ... preparation from culture Pathology ... visualize host cell ... #microbiology #microscopy ... fungi #fungus #comparison
On the left radiological pathological correlation of Langerhans cell histiocytosis in respectively nodular stage and early
of Langerhans cell ... Clinical #Radiology #Pathology ... #CTChest #Microscopy ... #LCH #LangerhansCellHistiocytosis