All are true about temporal aeritis except
**Core Concept**
Temporal arteritis, also known as **giant cell arteritis**, is a large vessel vasculitis that affects the medium and large arteries, most commonly the temporal artery. It is characterized by **inflammation** of the arterial wall, leading to ischemic complications. The condition is often associated with **polymyalgia rheumatica**.
**Why the Correct Answer is Right**
Since the question is incomplete, let's discuss the general characteristics of temporal arteritis. The condition typically presents with **headache**, **jaw claudication**, and **visual disturbances**. The diagnosis is often confirmed by **biopsy** of the temporal artery, which shows **giant cell inflammation**.
**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific details of option A, we cannot determine why it is incorrect.
**Option B:** Similarly, without the details of option B, its incorrectness cannot be explained.
**Option C:** The same applies to option C.
**Option D:** Option D's incorrectness also cannot be discussed without its specifics.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that temporal arteritis is a medical emergency due to the risk of **permanent vision loss** if not promptly treated with **corticosteroids**.
**Correct Answer:** Correct Answer: D. Involves small vessels