The British Journal of Psychiatry 131: 155-159 (1977)
© 1977 The Royal College of Psychiatrists
Hyperostosis frontalis interna and mental morbidity
J Walinder
Forty-six mentally ill women with radiologically verified hyperostosis
frontalis interna (HFI) were compared with 46 matched mentally ill women
without HFI in respect of mental morbidity among the full siblings of the
two groups. It was found that mental morbidity was lower among the siblings
on mentally ill women with HFI than among those of similar mentally ill
women without HFI. A reasonable interpretation of these findings is that
the combination mental illness- HFI is more often exogenously determined
than other forms of mental illness.