This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
Mycotic aneurysm is an aneurysm infected because of- 
Select and explain. 
A. Fungal infection, B. Blood-borne infection (Intravascular), C. Infection introduced from outside (extravascular), D. Both intravascular and extravascular infection
D: Both intravascular and extravascular infection
Answer: D: Both intravascular and extravascular infection 
Explanation: A mycotic aneurysm is a dilation of an aery due to damage of the vessel wall by an infection. It is also referred to as infected aneurysm. The term "mycotic" referring to fungal is a misnomer as various organisms including predominantly bacterial can cause the aneurysm. Ref Davidson 23rd edition pg 345