This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
Interstitial cystitis is also known as? 
Select and explain. 
A. Eosinophilic cystitis, B. Radiation cystitis, C. Hunner's cystitis, D. Tubercular cystitis
C: Hunner's cystitis
Answer: C: Hunner's cystitis 
Explanation: Interstitial cystitis is also known as Hunner's cystitis or elusive ulcer.It is common in psychic females.There is pancystitis withnfibrosis of vesical musculature along with linear ulcers in the bladder mucosa.Bladder eventually becomes thimble (systolic)bladder with decreased bladder capacity up to 30-60 ml. Reference:SRB's manual of surgery,5th edition,page no:1032