39 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Nodular LCH: - Sarcoidosis ... : 'signet ring sign ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... #CTChest #Cystic
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
non-perfused vessels and causes ... In daily clinical ... during a period of CHF ... #Clinical #Radiology ... #CXR #CHF #Cephalization
Luftsichel Sign in Left Upper Lobe Collapse - Chest X-Ray

An upper lobe collapse causes the collapse
Luftsichel Sign ... #Luftsichel #Sign ... LUL #Collapse #clinical ... #radiology #Chest ... #XRay #CXR
Hilum Overlay Sign on Chest X-Ray
If a mass is in contact with the pulmonary vessels then,
Hilum Overlay Sign ... the silhouette sign ... Hilum #Overlay #Sign ... #Chest #XRay #clinical ... #radiology #CXR
Heart failure with Reduced Ejection Fraction (HFrEF)
Clinical Presentation
1. Typical symptoms: dyspnea, orthopnea paroxysmal noctumal dyspnea, fatigue,
Fraction (HFrEF) Clinical ... More Specific Signs ... Less Specific Signs ... Chest x-ray: signs ... → no signs of CXR
Congenital absence of the pericardium: 
- CXR: leftward shift of the cardiac silhouette, Snoopy sign, no
pericardium: - CXR ... silhouette, Snoopy sign ... in a posterior position ... #chest #radiology ... #clinical
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... • Common clinical ... Acute meningeal signs ... • Gram stain: Positive ... Singh @rav7ks #CNS
Pleural effusion is not always visible as a meniscus in the costophrenic angle. 
A subpulmonic effusion
In these cases, ... a patient with signs ... there is a high position ... #Clinical #Radiology ... #CXR #CHF #Pleural
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... should be based on clinical ... Antimicrobial treatment ... Demyelinating disease caused ... and <25% culture positive
Neuromyelitis Optica (NMO) - Clinical Manifestations
 • Optic neuritis: Reduced visual acuity, ranging from mild to
Optica (NMO) - Clinical ... desaturation, Scotoma, Ocular ... pain • Extra-CNS ... complications (AQP4-positive ... neurology #symptoms #signs