This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
Which of the following is not a typical feature of malignant otitis externa? 
Select and explain. 
A. Caused by Pseudomonas aeruginosa, B. Patients are usually old, C. Mitotic figures are high, D. Patient is immune compromised
C: Mitotic figures are high
Answer: C: Mitotic figures are high 
Explanation: Malignant otitis externa is not a neoplastic disease. The term malignant is used because of the severity of disease which can cause several complications including multiple cranial nerve palsies. Malignant otitis externa is an infective process caused mostly by P aeruginosa. It affects elderly diabetics or those with immunocompromised status.