4 results
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
lesions < 4cm + mass ... enhancement on CT ... Demyelinating disease caused ... periventricular areas ... diameter - +mass
Guillain–Barré syndrome (GBS)
(aka: Landry–Guillain–Barré–Strohl syndrome:
	Most common cause of acute flaccid paralysis
	Rapidly progressive ascending paralysis & areflexia
	Autonomic
syndrome:  Most common ... cause of acute ... lower to upper areas ... Multiple Sclerosis: CNS ... level, MRI shows mass
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
to impaired B-cell ... - gastric and breast ... Chest CT: • Ground-glass ... levels are within normal ... DDX - Other causes
Langerhans Cell Histiocytosis (LCH)

Granulomatous Lesions comprising langerin-positive histiocytes and an inflammatory infiltrate can arise in virtually
areas include the ... lytic lesions, commonly ... CNS involvement: ... Imaging: X-rays, CT ... PET-CT / MRI: Staging