31 results
Blurry vision in a patient with HIV/AIDS
Anterior Segment:
 • Herpes zoster ophthalmicus
 • Keratitis (HSV, Staph,
Cocci*, Toxo*, non-infectious ... retinitis* • Ocular ... • Choroidal infections ... seen with lower CD4 ... Anterior #Posterior #Differential
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... status, and focal neurologic ... confusion, and focal neurologic ... #differential # ... InfectiousDiseases #Neurology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Toxoplasmosis (CD4 ... splenomegaly Other infections ... multiple lesions Infectious ... Lesions #Brain #differential ... causes #radiology #neurology
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
CT Patterns - Differential ... Low Attenuation Nodular ... Metastases, Miliary Infection ... Consolidation: Pus, Blood, Water ... #CT #Patterns #Differential
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
symptomatology Differential ... allopurinol), Infection ... Investigations • Labs: CBC ... DAH, rule out infection ... #diagnosis #nephrology
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
Neutrophil (Normal) Differential ... superior indicator of infection ... #Bandemia #differential ... neutrophil #WBC #CBC ... #hematology #pathophysiology
Cytomegalovirus (CMV) in HIV-AIDS Patients
Cytomegalovirus (CMV): double-stranded DNA virus, herpesvirus family.
CMV infection: virus isolation or detection
CMV infection: virus ... patient with HIV and CD4 ... 50 or less: • Neurologic ... • Endocrine: Infectious ... AIDS #diagnosis #differential
Neurological Manifestations of Tuberculosis
Spinal Arachnoiditis & Polyradiculopathy:
 • Subacute onset of limb weakness, bladder/bowel dysfunction, muscle
Worsening of previous neurologic ... the tuberculoma (later ... and not direct infection ... Tuberculosis #diagnosis #differential ... #TB #neurology
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
Hypochloremia - Differential ... Exclusive D5W use • Water ... Hypochloremia #Differential ... Diagnosis #Algorithm #Pathophysiology ... #Nephrology #Chloride
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Found In: • Water ... • Nodular or ... • Municipal water ... Advanced HIV (CD4 ... #differential #