Pathnologic @pathnologic
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Strongyloides stercoralis Hyperinfection - Physical examination revealed reticulated purpuric patches with dusky centers on the abdomen,
biopsy of the rash ... revealed filariform ... #Clinical #Derm ... InfectiousDisease #Rash ... FilariformLarvae #Microscopy
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
Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
HSV #Pathology #Microscopy ... #Clinical #LymphNode
Tinea Versicolor - Physical examination revealed large, coalescing, hypopigmented patches and macules on her torso and
#Clinical #Derm ... TineaVersicolor #Rash ... #Microscopy #Spaghetti
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
PatternC #Pathology #Microscopy ... #LymphNode #Clinical
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
Glucagonoma-Associated Rash - The rash involved the arms, genitals, and buttocks and had progressed to the
Glucagonoma-Associated Rash ... - The rash involved ... resolve (Panel D) #Clinical ... #HONC #Derm #Pathology ... #Microscopy #CT
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
#Histiocytes #LymphNode ... #Pathology #Clinical ... #Microscopy
Cutaneous Actinomycosis - the left knee was noted to have edema, erythema, hyperpigmentation, hyperkeratinization, and several
organism (Panel C) #Clinical ... #Derm #Pathology ... #Rash #Cutaneous ... SplendoreHoeppli #Microscopy