Okay, let's tackle this question. The topic is Alport syndrome and its relation to deafness. First, I need to recall what Alport syndrome is. It's a genetic disorder that affects the basement membranes, right? Mainly in the kidneys, ears, and eyes. The hallmark is glomerulonephritis, but the question is about deafness.

So the options are about which statement is true regarding deafness in Alport syndrome. The correct answer isn't provided, but I remember that Alport syndrome is associated with sensorineural hearing loss. But wait, when does it occur? Is it high-frequency or low-frequency? I think it's high-frequency hearing loss. Also, the timing—does it present early or later in the disease course? I recall that hearing loss tends to appear later, after the kidney issues. Maybe after the onset of hematuria or nephritis.

Now, the options aren't given, but common distractors might include stating that it's conductive hearing loss, which is incorrect. Or maybe that it's associated with tinnitus, which might not be a primary feature. Another wrong option could be that it's a feature in all patients, but actually, not everyone develops hearing loss. Also, the inheritance pattern—Alport is X-linked dominant in most cases, so if the question is about inheritance affecting hearing, that's another point.

The core concept here is that Alport syndrome's deafness is sensorineural, typically high-frequency, and occurs later. The pathophysiology involves basement membrane defects in the cochlea. The wrong options would be about type of hearing loss, timing, or other features. The clinical pearl would be to remember the triad: hematuria, sensorineural hearing loss, and anterior lenticonus, with hearing loss being a late manifestation.

**Core Concept**
Alport syndrome is a genetic disorder characterized by glomerulonephritis, sensorineural hearing loss, and anterior lenticonus. Deafness in this condition results from basement membrane abnormalities in the cochlea, leading to high-frequency sensorineural hearing loss, typically manifesting in late childhood or adolescence.

**Why the Correct Answer is Right**
The correct statement would highlight that Alport syndrome causes **high-frequency sensorineural hearing loss** due to defective type IV collagen in the cochlear basement membranes. This structural defect impairs sound conduction in the high-frequency range. Hearing loss is a hallmark feature, often progressing with age and correlating with renal disease severity.

**Why Each Wrong Option is Incorrect**
**Option A:** *If it claims conductive hearing loss*—Alport syndrome causes sensorineural, not conductive, hearing loss. Conductive loss involves outer/middle ear structures, which are unaffected here.
**Option B:** *If it states low-frequency hearing loss*—Alport’s hearing loss is specifically high-frequency. Low-frequency loss is atypical for this condition.
**Option C:** *If it attributes deafness to tinnitus*—While tinnitus may occur, it is not the primary mechanism of hearing loss in Alport syndrome.
**Option D:** *If it claims universal hearing loss in all patients*—Approximately 60–70% of Alport patients develop sensorineural hearing loss; it is not universal.

**Clinical Pearl / High-Yield Fact**
Remember the **

✓ Correct Answer: C. Deafness always accompanied by evidence of renal disease