CHEST X-RAY FINDINGS ON PYROPHYLLITOSIS

An outline of the chest X-ray findings on pyrophyllitosis was described in terms of working environments and its length of term in the dust. It was clarified that in pyrophyllitosis granular shadows were distributed in the upper and middle lung fields, which used to indicate an accretion trend at an early stage. A fast development of fibrosis in the lung was also assumed, from which standpoint, too, the malignancy of pyrophyllitosis is considered to be very serious. It requires careful and sufficient course-observations, while on the other hand an earlier isolation from such work in the dust must be taken into consideration.