Pfeiffer syndrome or acrocephalosyndactyly type 5 is a complex cranios
ynostosis syndrome characterized by craniosynostosis and broad thumbs
and toes, Nineteen cases had their case notes and X-rays reviewed, A w
ide range of anomalies was seen with many bones within the hand affect
ed on occasion by fusions, The most common anomalies were hypoplasia o
f the middle phalanx of the little or index fingers which occurred in
the majority of cases, This finding may be of more use in establishing
clinical diagnosis than the traditional thumb assessment.