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What is the lambdoidal suture?

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Quick Answer

The lambdoidal suture, sometimes referred to as the lambdoid suture, is a junction held together by a group of fibrous tissues that connects the parietal bone to the occipital bone in the human skull. Its name is derived from its lambda-like shape.

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Full Answer

Premature closure or fusion of the lambdoid suture is known as lambdoid synostosis. It is a rare form of craniosynostosis. It is diagnosed with an examination of the skull. Signs of the disorder include flattening on the back of the head where the suture is fused. The ear on the side where the suture has fused tends to be placed further toward the back bottom of the head than the ear on the unaffected side. Lamdoid synostosis poses little threat to normal brain development.

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