Pathnologic @pathnologic
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Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
Herpes Simplex Virus ... #Simplex #Virus ... Lymphadenitis #HSV #Pathology ... #Microscopy #Clinical ... #LymphNode
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
Here is a lymph ... KyleBradleyMD "Pattern ... infection) - "Pattern ... #Pathology #Microscopy ... #LymphNode #Clinical
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
Here is a lymph ... KyleBradleyMD "Pattern ... Lymphadenitis #PatternA ... #Pathology #Microscopy ... #LymphNode #Clinical
Here are the morphological hallmarks of Rhabdomyosarcoma.

 - Broken arrow sign 

 - tad-pole rhabdomyoblasts
Here are the morphological ... Rhabdomyosarcoma #Hallmarks #Pathology ... #Microscopy #Clinical
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Lymphadenitis #Pathology ... #LymphNode #Clinical ... #Microscopy
Acute Graft versus Host disease: vacuolar interface dermatitis w/ lymphoexocytosis, dyskeratotic keratinocytes, notable satellite cell necrosis.
after BMT like here ... Host #disease #Pathology ... #Microscopy #Dermatology
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
#Histiocytes #LymphNode ... #Pathology #Clinical ... #Microscopy
Tinea Versicolor - Physical examination revealed large, coalescing, hypopigmented patches and macules on her torso and
and meatball” pattern ... Clinical #Derm #Pathology ... TineaVersicolor #Rash #Microscopy
Olfactory Neuroblastoma Pathology

Morphology and other IHC clinched the diagnosis of olfactory neuroblastoma here. The tumor had
Neuroblastoma Pathology ... neuroblastoma here ... Neuroblastoma #Pathology ... #Microscopy #Clinical
Grouped Pustules on an Erythematous Base - On physical examination, grouped, coalescing pustules that had scalloped
Microscopic examination ... Clinical #Derm #Pathology ... #Herpes #Arm #Pustules ... Tzsanck #Smear #Microscopy