22 results
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Head&neck, Lymph ... Nodes, and lungs ... Lymph node entirely ... seen within giant cells ... Lymphadenitis #Pathology #LymphNode
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
nodes in upper ... nodes - Pruritus ... node groups) ... - Lymph nodes throughout ... Tuberculosis • HIV
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
Here is a lymph ... node that is lymphoid-depleted ... proliferation (seen in lymph ... nodes from patients ... Pathology #Microscopy #LymphNode
Fever of Unknown Origin (FUO) - Further Workup

 • CNS symptoms? Get an LP and imaging
Unknown Origin (FUO ... Returning Traveler’ algorithm ... Lymph node biopsy ... udaygulati #FUO
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis Algorithm
Neoplasm:
• NHL
• Hodgkin's lymphoma
• Leukemia
• Solid
Unknown Origin (FUO ... Differential Diagnosis Algorithm ... nodosum • Giant cell ... Infection: • HIV ... UnknownOrigin #FUO
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
Here is a lymph ... node with florid ... Warthin-Finkeldey type giant cells ... Monocytoid B cells ... Pathology #Microscopy #LymphNode
Bronchiectasis: diagnosis and management 

Causes of localized -> diffuse bronchiectasis
Foreign body, Bronchial stenosis (tumor, .. ),
compression from lymph ... node Mycobacteria ... deficiency, CVID+++, HIV ... Differential #workup #algorithm
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
Signet ring cell ... histiocytes in lymph ... node sinuses! ... #SignetRing #Cell ... #Histiocytes #LymphNode
Lymphadenopathy - Differential Diagnosis Algorithm
Localized: 
 • Cervical: EBV, CMV, HIV, Toxo, TB, Lymphoma, Head /
Differential Diagnosis Algorithm ... Cervical: EBV, CMV, HIV ... Supraclavicular: Virchow's Node ... Infection: Acute HIV ... Angioimmunoblastic T-cell
Possible Algorithm for Workup of Fever of Unknown Origin (FUO)
Tier 1 Workup:
 • CBC, comprehensive metabolic
Possible Algorithm ... Unknown Origin (FUO ... blood cultures • HIV ... , Bone marrow, Lymph ... node, Liver •