Pathnologic @pathnologic
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Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
Herpes Simplex Virus ... Lymphadenitis ... DennisOMalleyMD) #Herpes ... Simplex #Virus #Lymphadenitis ... #HSV #Pathology
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
Here is a lymph ... late phase HIV lymphadenitis ... Pattern C" in HIV Lymphadenitis ... pattern C #HIV #Lymphadenitis ... #PatternC #Pathology
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
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
Here is a lymph ... typical of HIV lymphadenitis ... Pattern A" in HIV Lymphadenitis ... HIV #EarlyPhase #Lymphadenitis ... #PatternA #Pathology
Myeloma: In this BM core, most plasma cells contain cytoplasmic immunoglobulin (Russell bodies).

They're difficult to identify
CD138 helps (same ... BoneMarrow #Clinical #Pathology ... #Hematology
Trichofolliculoma - Dermatopathology
Mnemonic: Mama and her Babies. Multiple vellus hair follicles emanating from one large central
section shown here ... trichofolliculoma #Pathology ... #Microscopy #Dermatology
Grouped Pustules on an Erythematous Base - On physical examination, grouped, coalescing pustules that had scalloped
Clinical #Derm #Pathology ... #Herpes #Arm #Pustules ... Smear #Microscopy #NEJM