Premature closure of coronal, sagittal, and lambdoid sutures results in NOT RELATED-SURGERY
## Core Concept
Premature closure of cranial sutures, also known as craniosynostosis, can lead to various skull deformities. The type of deformity depends on which sutures are involved. The coronal, sagittal, and lambdoid sutures are key to understanding the shape and growth of the skull.
## Why the Correct Answer is Right
Premature closure of all three major sutures (coronal, sagittal, and lambdoid) results in a condition known as **oxycephaly** or **acrocephaly**. This condition is characterized by a tall, tower-like skull. When all these sutures fuse prematurely, the skull grows upwards because it cannot expand laterally or anteriorly and posteriorly. This results in a high, peaked skull.
## Why Each Wrong Option is Incorrect
- **Option A:** This option is incorrect because premature closure of the coronal suture alone leads to **brachycephaly**, characterized by a short, wide skull.
- **Option B:** This option is incorrect as it might suggest another form of craniosynostosis but does not accurately describe the outcome of premature closure of all three sutures.
- **Option D:** This option is incorrect because it does not accurately represent the clinical outcome of premature closure of the coronal, sagittal, and lambdoid sutures.
## Clinical Pearl / High-Yield Fact
A key point to remember is that **oxycephaly** or **acrocephaly** results from premature closure of multiple cranial sutures, leading to a tall, peaked skull. This condition can be associated with increased intracranial pressure and developmental delays if not addressed.
## Correct Answer: C.