Seven cases of Histiocytosis-X in spine were discussed concerning to clinical appearances and radiological examination.
On follow-up studies, all of our patients had become asymptomatic within about one month from the onset and have had no discomfort since.
On radiological examination, three cases have shown the regeneration of vertebral body by the time of follow-up study.
The degrees of which were one half compared with normrl height.
The conclusions, obtained from our clinical and radiological studies, suggest that so-called Calvé's vertebral plana is due to the involvement of Histocytosis-X.
