17 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Diagnosis- Compatible syndrome ... splenomegaly Other infections ... Infectious: ... differential #diagnosis #causes ... #radiology #neurology
Causes of Secondary Amenorrhea - Differential Diagnosis Algorithm
Absence of menses for more than 3 cycles or
Causes of Secondary ... , weight loss, stress ... • Infiltrative lesions ... Prolactinoma • Chest ... Radiation • Infection
Alice in Wonderland Syndrome
What? Metamorphophsia - Distortions of the visual perceptions with changes in size (micro
in Wonderland Syndrome ... (Many causes!) ... ) • Infection ( ... ) • Brain lesions ... #diagnosis #neurology
BEE Syndromes - Non-inflammatory Causes

Immune-mediated conditions affecting the Brain, Eye, and Ear

Visual or auditory symptoms in
Non-inflammatory Causes ... Non-inflammatory causes ... skull neoplasms (e.g ... LHON) plus MRI lesions ... #neurology #noninflammatory
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
Causes of spinal ... • Extrinsic Causes ... Infarction - Infection ... (e.g., poliovirus ... #diagnosis #neurology
Concurrent Brain and Lung Lesions
 • Bacteria: Nocardia spp, Strep anginosus, Staph aureus, Klebsiella pneumoniae (hypervirulent),
Brain and Lung Lesions ... hypervirulent), Lemierre's syndrome ... #Brain #Lung #Infections ... Differential #Diagnosis #causes ... #infectiousdiseases
Concurrent Brain and Lung Lesions
 • Bacteria: Nocardia spp, Strep anginosus, Staph aureus, Klebsiella pneumoniae (hypervirulent),
Brain and Lung Lesions ... hypervirulent), Lemierre's syndrome ... #Brain #Lung #Infections ... Differential #Diagnosis #causes ... #infectiousdiseases
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
but important causes ... nutritionally variant Strep ... antiphospholipid syndrome ... special stains (e.g ... differential #workup #infectiousdiseases
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... Pneumonia: • 3 syndromes ... Polymorphic skin lesions ... Multiple skin lesions ... differential #diagnosis #infectiousdiseases
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
Preeclampsia, Eclampsia, Infection ... showing cortical lesions ... Diagnosis: • Infection ... the underlying cause ... with AEDs until cause