10 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
Here are the morphological hallmarks of Rhabdomyosarcoma.

 - Broken arrow sign 

 - tad-pole rhabdomyoblasts
rhabdomyoblasts - Wraith cells ... - Cross striations ... Rhabdomyosarcoma #Hallmarks #Pathology ... #Microscopy #Clinical
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
fibrosis (A) and well-formed ... 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
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 ... visualize host cell ... Stains fungal cell ... component of fungal cell ... melanin pigment in cell
Aldosteronoma — Spironolactone Bodies 

1. Spironolactone is often used to treat hypertension caused by hyperaldosteronism, and
Red blood cells ... endoplasmic reticulum in cells ... Spironolactone #Bodies #Pathology ... #Clinical #Gross ... #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
Diffuse Sclerosis Variant—PTC 
 - Rare variant of PTC 
 - Approximately 3% ofall PTC
• Carcinoma cells ... around the tumor cells ... Thyroid #Cancer #Pathology ... #Clinical #Gross ... #Microscopy