Question

The commonest site for hypertensive intracerebral bleed is:

• A. Putamen
• B. Cerebellum
• C. Pons
• D. Midbrain

Hint:

Hypertensive bleeds strike the sharply angled lenticulostriate branches feeding the basal ganglia hardest.

Answer 1

The Correct Option is A

Step 1: Recall the epidemiology of hypertensive bleeds.
Chronic high blood pressure damages the walls of small penetrating arteries deep inside the brain. These vessels form tiny outpouchings called Charcot-Bouchard aneurysms, and they rupture more often in some brain regions than others.

Step 2: Identify the most common site.
The putamen, part of the basal ganglia, receives blood from the lenticulostriate arteries, small branches that come off the middle cerebral artery at a sharp angle. This sharp angle puts extra strain on the vessel wall, so it is the site hit hardest by chronic hypertension. About 35 to 50 percent of hypertensive bleeds start here.

Step 3: Rank the other common sites.
After the putamen, the next most frequent sites are the thalamus, the pons, and the cerebellum, each accounts for a smaller share of cases. The midbrain is a rare site for a primary hypertensive bleed.

Step 4: Rule out the wrong options.

(2) Cerebellum: A recognized site, but far less common than the putamen.

(3) Pons: Bleeds here are dangerous because of the many vital centers nearby, but they occur less often than putaminal bleeds.

(4) Midbrain: An uncommon site for a hypertensive bleed.

Final Answer:
The putamen is the most common site for a hypertensive intracerebral hemorrhage.
\[ \boxed{\text{Putamen}} \]