A patient presents with recurrent episodes of sharp pain over his right cheek that is precipitated on chewing. Between attacks patients is otherwise normal.The most probable diagnosis is –
**Core Concept**
Trigeminal neuralgia is a condition characterized by recurrent episodes of severe, shock-like or stabbing pain in the distribution of the trigeminal nerve, which is often triggered by light touch or chewing. This condition is typically unilateral and occurs in the absence of any other neurological deficits.
**Why the Correct Answer is Right**
The correct answer is likely related to trigeminal neuralgia, which is a disorder of the trigeminal nerve (cranial nerve V). The pain is caused by demyelination of the nerve, leading to abnormal electrical activity and transmission of pain signals to the brain. This condition is often precipitated by light touch or chewing, which can stimulate the affected nerve.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not describe a condition that typically presents with sharp pain on chewing.
**Option B:** This option is incorrect because it does not accurately describe the clinical presentation of the condition in question.
**Option C:** This option is incorrect because it does not match the typical clinical presentation of the condition.
**Clinical Pearl / High-Yield Fact**
The pain in trigeminal neuralgia is often described as shock-like or stabbing, and is typically triggered by light touch or chewing. This condition is often treated with anticonvulsant medications or surgical intervention.
**Correct Answer:** C. Trigeminal Neuralgia