Pathnologic @pathnologic
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Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
• HSV-infected cells ... are present in ... HSV #Pathology #Microscopy ... #Clinical #LymphNode
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
KyleBradleyMD "Pattern ... Warthin-Finkeldey type giant cells ... Monocytoid B cells ... #Pathology #Microscopy ... #LymphNode #Clinical
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Nodes, and lungs are ... fibrosis (A) and well-formed ... seen within giant cells ... Lymphadenitis #Pathology #LymphNode ... #Clinical #Microscopy
Tinea Versicolor - Physical examination revealed large, coalescing, hypopigmented patches and macules on her torso and
torso and upper arms ... and meatball” pattern ... #Clinical #Derm ... TineaVersicolor #Rash #Microscopy
Amiodarone induced thyroid changes

Histopath: Remarkably enlarged follicles, distended with colloid, without 
scalloping, and lined by flattened
Amiodarone induced thyroid ... flattened follicular cells ... There are two types ... AIT #Pathology #Clinical ... #Microscopy
Grouped Pustules on an Erythematous Base - On physical examination, grouped, coalescing pustules that had scalloped
seen on the left arm ... Microscopic examination ... multinucleated giant cells ... #Clinical #Derm ... Pathology #Herpes #Arm
Diffuse Sclerosis Variant—PTC 
 - Rare variant of PTC 
 - Approximately 3% ofall PTC
Diffuse Sclerosis ... • Carcinoma cells ... PTC #Papillary #Thyroid ... Cancer #Pathology #Clinical ... #Gross #Microscopy
Glucagonoma-Associated Rash - The rash involved the arms, genitals, and buttocks and had progressed to the
rash involved the arms ... tissue revealed a well-circumscribed ... resolve (Panel D) #Clinical ... #HONC #Derm #Pathology ... Glucagonoma #Rash #Microscopy