12 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Chorioretinitis • Diagnosis ... • 80% with lung ... Syphilis • Pyogenic Abscess ... #Brain #differential ... #diagnosis #causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... Lung abscess ... Abscess Diagnosis ... stable residual lesion ... Abscess Differential
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
mnemonic for the causes ... - pulmonary abscess ... bronchogenic cyst #Diagnosis ... Mnemonic #Cavitary #Lesions ... #Differential #
Lung Nodule - Differential Diagnosis Algorithm
Nodule on > 2 Years Without a Change in Size:
 •
Lung Nodule - Differential ... Diagnosis Algorithm ... Granuloma • Abscess ... Metastases ("cannonball lesions ... #Causes #Pulmonary
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
Diagnosis Framework ... Fistulas • Dieulafoy lesion ... westermani, PNA, Lung ... abscess, Aspergillosis ... #causes
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Cord Disorders - Differential ... Diagnosis Framework ... Non-compressive Spinal Cord Causes ... sclerosis - Transverse ... TB - Spinal abscess
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
Causes of spinal ... Spinal stenosis - Abscess ... patients with a long ... #differential # ... diagnosis #neurology
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
verrucous) • Lung ... Septic Emboli Cause ... Marantic (NTBE) Differential ... Treat underlying cause ... or destructive lesion
Guillain–Barré syndrome (GBS)
(aka: Landry–Guillain–Barré–Strohl syndrome:
	Most common cause of acute flaccid paralysis
	Rapidly progressive ascending paralysis & areflexia
	Autonomic
 Most common cause ... Differential diagnosis ... hyperreflexia, multiple lesions ...  Transverse myelitis ... relapses, requires long-term
Lemierre's Syndrome on Neck POCUS with IJ Thrombosis - Transverse View

Male with high fever and right
Syndrome on Neck POCUS ... IJ Thrombosis - Transverse ... Differential/diagnosis ... Lemierre's Syndrome case ... septic emboli in lungs