This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
Presence of calcification on an intracranial lesion is best made out by: September 2012 
Select and explain. 
A. MRI, B. USG, C. CT scan, D. Contrast study
C: CT scan
Answer: C: CT scan 
Explanation: Ans. C i.e. CT scan CNS: Radiological signs and conditions IOC for subarachnoid hemorrhage (SAH): Non contrast CT Intracranial calcification is seen in: - Cystecercosis, - Pineal and dural calcification Basal ganglia calcification is seen in: Hypoparathyroidism Suprasellar calcification is seen in: - Craniopharyngioma, - Meningioma Rail road/ Tram track calcification: Sturge Weber syndrome Periventricular calcification is seen in: CMV infection Bracket calcification in skull is seen in: Corpus callosum lipoma Separation of sutures in a child is radiological sign of: Raised intra-cranial tension