Punched out lytic lesions

Punched out lytic lesions seen in multiple myeloma

Cotton wool skull

Cotton wool skull seen in Paget’s disease

Periventricular calcification :CMV

Perventricular calcification in CMV infection

Delta sign

Delta sign hyperdense triangular shadow in superior sagittal sinus thrombosis on noncontrast CT

Dawson fingers: multiple sclerosis

Dawson’s fingers in multiple slcerosis

Ca esophagus

Ca esophagus shouldering of ends

Acute SAH

Acute SAH Crescent shaped Not limited by sutures Due to rupture of Bridging veins

Acute EDH

Acute EDH Biconvex Limited by sutures Due to rupture of Middle meningeal artery

Zenker’s diverticulum

Zenker’s diverticulum Barium – IOC → contrast filled out pouching through killian dehiscenceEndoscopy is difficult with potential danger of rupture

Ischemic colitis

Ischemic colitis: -Thumb printing sign

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