A 35 year old lady Malti has unilateral headache, nausea, vomiting and visual blurring. The diagnosis is –
**Core Concept**
Migraine is a complex neurological disorder characterized by recurrent episodes of unilateral headache, often accompanied by nausea, vomiting, and visual disturbances. The pathophysiology of migraine involves the activation of trigeminal nerve terminals, leading to the release of vasoactive neuropeptides and the development of cerebral vasodilation.
**Why the Correct Answer is Right**
The correct answer is migraine because the patient presents with classic migraine symptoms, including unilateral headache, nausea, vomiting, and visual blurring. The activation of the trigeminal nerve terminals in the brainstem leads to the release of vasoactive neuropeptides, such as calcitonin gene-related peptide (CGRP), which causes blood vessels to dilate and leads to the characteristic symptoms of migraine. This process is mediated by the trigeminal nucleus caudalis, which is located in the brainstem.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because cluster headaches are typically characterized by severe, unilateral pain that is often described as burning or piercing, and is usually accompanied by autonomic symptoms such as ptosis, miosis, and rhinorrhea. Cluster headaches do not typically present with nausea, vomiting, or visual blurring.
**Option B:** This option is incorrect because tension headaches are typically characterized by bilateral, band-like pain that is often described as a dull ache or pressure. Tension headaches do not typically present with nausea, vomiting, or visual blurring.
**Option C:** This option is incorrect because sinusitis is typically characterized by facial pain or pressure that is often accompanied by nasal congestion, rhinorrhea, and a cough. Sinusitis does not typically present with unilateral headache, nausea, vomiting, or visual blurring.
**Clinical Pearl / High-Yield Fact**
Migraine is a complex disorder that is often triggered by hormonal changes, stress, and certain foods. Patients with migraine may also experience aura symptoms, such as visual disturbances, numbness, or tingling, which can occur before the onset of headache.
**Correct Answer: C. Migraine**