Slipped Capital Femoral Epiphysis (SCFE) Southwick’s angle: Epiphyseal-shaft angle on lateral radiograph <30 degrees: mild 30-60 degrees: moderate >60 degrees: severe Klein’s line: Line drawn…
Explore more Lines and Angles in Orthopedics
Tag: Radiology
Ottawa rules for Extremitity Radiographs
Ottawa Ankle and Foot Rules Mnemonic: 44-55-66-PM Patients need an X-ray only if: 4: Unable to do 4 steps immediately AND 4: Unable to do…
Explore more Ottawa rules for Extremitity Radiographs
Pulmonary Embolism : Chest X-ray Signs
1. Classic presentation is normal X-ray in patient with dyspnea and hypoxia 2. Atelectasis or parenchymal abnormality (68%) 3. Elevated hemidiaphragm 4. Pleural effusion (Felson’s…
Explore more Pulmonary Embolism : Chest X-ray Signs
Rib Notching
Normal Rib Notching A small notch near the costo-vertebral joint is normal, so pathologic rib notching is more likely if the notching is more lateral.…
Explore more Rib Notching
Silhouette and Cervico-thoracic sign
Synonyms: Obscured margin sign, Loss of outline sign Silhouette refers to the shadow and derived it’s origin from shadow papercuts done by Etienne de Silhouette.…
Explore more Silhouette and Cervico-thoracic sign
Ball-on-Tee, Lobster Claw and Signet Ring Sign – Renal papillary necrosis
Synonym: Necrotizing papillitis In renal papillary necrosis, part or all of necrotic renal papilla sloughs and may fall into the pelvicalyceal system, which may remain…
Explore more Ball-on-Tee, Lobster Claw and Signet Ring Sign – Renal papillary necrosis
Liver Segments Explained with Mnemonic
Couniaud divided liver into 8 functional segments, each of which is supplied by it’s own portal triad (composed of a portal vein, hepatic artery and…
Explore more Liver Segments Explained with Mnemonic
Omental Cake
Definition of Omental Caking Thickening of the omentum resulting from localized or diffuse infiltration of omental fat by soft tissue density mass is referred as…
Explore more Omental Cake