13 results
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... nodules, notice sparing ... CTChest #Nodular #Pattern ... #Comparison #Table
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... woman of child-bearing ... LowAttenuation #Cystic #Pattern ... #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... woman of child-bearing ... LowAttenuation #Cystic #Pattern ... #Comparison #Table
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... nodules, notice sparing ... CTChest #Nodular #Pattern ... #Differential #Comparison ... #Table #RadiologyAssistant
Ulcerative Colitis vs Crohn's Disease - IBD Comparison Table
Ulcerative Collitis
 - Location
Disease - IBD Comparison ... Table Ulcerative ... involvement and sparing ... Amy Chung, MD, MSc ... #Table #UC
Estimated Medical Radiation Doses for 5 Year-Old Child

3-view ankle	0.0015 mSv	1/14th CXRs
2-view chest	0.02 mSv	1 CXRs
Anteroposterior and lateral
view chest 0.02 mSv ... cystogram 0.18 mSv ... PatientInfo #Radiology #Background ... #CT #Nuclear #Comparison ... #Table #Risks #
Radiation Dose to Adults from Common Imaging Examinations
ABDOMINAL REGION
 - Computed Tomography (CT) — Abdomen and
and Pelvis 10 mSv ... CT for Calcium Scoring ... PatientInfo #Radiology #Background ... #CT #Nuclear #Comparison ... #Table #Risks #
TISSUE APPEARANCES ON 
MUSCULOSKELETAL ULTRASOUND 

Bone:
 
Bone is represented as a very bright structure and appears
or ‘hypoechoic’ background ... the fibrillar pattern ... a hyperechoic background ... MUSCULOSKELETAL #MSK ... Clinical #Radiology #Comparison
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Differential Diagnosis Algorithm ... involvement, irregular pattern ... Amy Chung, MD, MSc ... Lymphoproliferative #Disorders #Classification ... #differential #algorithm
How much radiation is used in paediatric radiology examinations compared to other exposures?

Estimated dose - Days
dose - Days of background ... radiation Natural background ... PatientInfo #Radiology #Background ... #CT #Nuclear #Comparison ... #Table #Risks #