Imp signs

1. SUPERIOR SAGITTAL SINUS THROMBUS IN CT surrounded by TRAINGULAR ENHANCEMENT...=delta sign
2.copper beaten appearance=raised ICT
3.rim sign= SEVERE HYDRONEPHROSIS IN NEPHROGRAM AND ACUTE COMPLETE ARTERIAL OBST
4.ADDER HEAD APPEARENCE ON IVP.=ureterocele
5. SPIDER LEG APPEARENCE= ADPKD
6. BRACKET CALCIFICATION = lipoma corpus callosum
7.tram track calcification= struge weber
8. BICONVEX HYPERDENSE IN WHICH HAEM..= EDH
9. Sinus thrombosis on ncct is known as triangle sign or cord sign.
10.Empty delta sign or negative delta sign on cect is in dural sinovenous thrombosis.
11. SWAN NECK DEFORMITY = RA
12. Swan neck . Z deformity . Boutunier or piano sign or wind swept sign = RA
13. MARTEL OF G sign = gout
14. OPERA GLASS DEFORMITY= psoriasis
15. GULL WING SIGN= erosive osteoarthritis
16. PENCIL IN CUP APPEARANCE = PSORIATIC ARTHRITIS
17.FOOTBALL SIGN = Pneumoperitoneum (SUPINE XRAY)
18. RICE GRAIN CALCIFICATION ON CT = NEUROCYSTICERCOSIS
19.KEY HOLE SIGN = Post. Urethral Valve
20.CARTWHEEL APPEARENCE ON USG= HYDATID CYST