18 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 ... #Cysts #Differential
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... patterns: reticular, nodular ... The cystic pattern ... seen and in many cases ... #Diagnosis #Radiology
Causes of Cystic Renal Mass - Differential Diagnosis Algorithm
Benign - Anechoic on ultrasound, Well-demarcated on ultrasound/CT,
Causes of Cystic ... Renal Mass - Differential ... , Positive family ... Carcinoma - No signs ... #RenalMass #Nephrology
Positive Throckmorton sign in a case of chronic osteomyelitis of the left hip. X-ray findings:
1) complete
Positive Throckmorton ... sign in a case ... femoral head 2) lytic ... as John Thomas sign ... #Clinical #Radiology
Summary table of common benign breast diseases and how to manage them. 
Fibroadenoma:
 • Most common
bilateral Breast cyst ... terminal duct lobular ... breast e.g. biopsy, car ... bruising/erythema/sign ... diseases #benign #differential
Neuromyelitis Optica (NMO) - Clinical Manifestations
 • Optic neuritis: Reduced visual acuity, ranging from mild to
Optica (NMO) - Clinical ... desaturation, Scotoma, Ocular ... complications (AQP4-positive ... Manifestations #diagnosis #neurology ... #symptoms #signs
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Ocular- 50%: Ptosis ... life-threatening Differential ... test - Cogan sign ... - Peek sign ... diagnosis #management #neurology
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
• Common clinical ... Acute meningeal signs ... • Gram stain: Positive ... 90% • Culture: Positive ... #diagnosis #neurology
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
association • M > F Clinical ... skin injury) • Neurologic ... Skin lesions • Positive ... Behcet disease) Differential ... diagnosis #management #signs
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
in HIV / AIDS - Differential ... should be based on clinical ... Demyelinating disease caused ... and <25% culture positive ... "punched-out" cystic