23 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
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
Causes of Fever ... Unknown Origin (FUO ... nodosum • Giant cell ... UnknownOrigin #FUO ... #causes
Mediastinal Mass - Differential Diagnosis Framework

Anterior Mediastinal Mass - 5T’s
 • Thymic neoplasm
 • Teratoma (or
cyst/Tumor • Lymph ... node hyperplasia ... nodes ... The most common cause ... nodes
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
Bronchiectasis: diagnosis and management 

Causes of localized -> diffuse bronchiectasis
Foreign body, Bronchial stenosis (tumor, .. ),
management Causes ... compression from lymph ... node Mycobacteria ... Differential #workup #algorithm
Neck Mass - Differential Diagnosis Algorithm
Congenital Neck Mass:
 • Thyroglossal Duct Cyst
 • Branchial Cleft Anomalies
Differential Diagnosis Algorithm ... : • Squamous Cell ... Spread to Cervical Lymph ... Nodes) • Melanoma ... #Causes
Leukemias Overview: ALL, CML, AML, APML, CLL

Acute leukemias > 20% blasts in the peripheral blood smear
of ALL is of B-cell ... lymphadenopathy • Blast cells ... -> AML: Blast crises ... are in the Lymph ... Nodes: • Small
Lymphadenopathy - Differential Diagnosis Algorithm
Localized: 
 • Cervical: EBV, CMV, HIV, Toxo, TB, Lymphoma, Head /
Differential Diagnosis Algorithm ... Supraclavicular: Virchow's Node ... Angioimmunoblastic T-cell ... Differential #Diagnosis #Algorithm ... #Causes
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
otalgia Most Common Causes ... Basal/squamous cell ... puffy tumor) • Lymph ... node: lymphadenopathy ... , lymph node malignancies