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
Which of these is NOT a sign of increased intracranial tension (ICT)? 
Select and explain. 
A. Erosion of dorsum sella, B. Sutural diastasis, C. Ballooning of sella, D. Copper-beaten appearance
C: Ballooning of sella
Answer: C: Ballooning of sella 
Explanation: X-ray findings of increased intracranial tension: Sutural diastasis Sellar demineralization Erosion of posterior clinoids Silver beaten appearance Must know: Cushing's triad: It is the classic presentation of ICH: hypeension, bradycardia, and irregular respirations. Ref: Diagnostic Neuroradiology edited by Valery N.Kornienko, 2009, Page 562.