Case contributed by Sepehr Haghighi
Diagnosis almost certain


Head deformity

Patient Data

Age: 5 months
Gender: Male

Premature fusion of the metopic suture resulting in trigonocephaly.

Case Discussion

Trigonocephaly refers to the triangular shape of the frontal skull created by premature closure of the metopic suture 1.

The metopic suture is usually open at birth and normally fuses in the first 12 months of life 2.

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