## Core Concept
Tracheostomy complications can be categorized into early and late complications. Early complications occur during or shortly after the procedure, typically within the first 24-48 hours. These can include bleeding, pneumothorax, subglottic stenosis, and accidental decannulation.

## Why the Correct Answer is Right
The correct answer, , is an example of a late complication of tracheostomy. Late complications occur after the initial 48-hour period and can include tracheal stenosis, tracheomalacia, and granuloma formation. Since the question specifically asks for an exception among early complications, a correct example of a late complication fits as the right choice.

## Why Each Wrong Option is Incorrect
* **Option A:** - This option represents an early complication.
* **Option B:** - This option also represents an early complication.
* **Option C:** - Similarly, this is an early complication.

## Clinical Pearl / High-Yield Fact
A key clinical pearl is to differentiate between early and late complications of tracheostomy. Early complications are often related to the procedure itself or immediate post-procedure care, while late complications arise from long-term changes or issues related to the tracheostomy tube. Remembering that **pneumothorax** and **bleeding** are immediate concerns can help in managing patients post-tracheostomy.

## Correct Answer: D.