CHAPTER 27 



RELATIONS OF THE ADULT PINEAL ORGAN 



Some of the more important relations are seen in Fig. 276, which 

 is an X-ray photograph of a patient aged 50, showing a calcified pineal, 

 and Fig. 1, p. 2, also of a calcified pineal organ. Fig. 277 is from a section 

 of the pineal region made in the median sagittal plane, and Fig. 278 a trans- 

 verse section of a brain containing a tumour in the pineal region. Fig. 274 



Fig. 275. — Radiographs of Skull, showing Calcification in the Choroid 



Plexus. 



also shows diagrammatically the position of the great cerebral vein, basal 

 vein, and internal occipital vein to the pineal body ; the relations that a 

 pineal tumour growing backwards beneath the tentorium cerebelli would 

 have to the splenium of the corpus callosum ; the junction of the great 

 cerebral vein with the inferior sagittal sinus to form the straight sinus, 

 and the convolutions and sulci on the adjacent tentorial surface of the 

 brain. The falx cerebri, tentorium, and falx cerebelli, the cerebellum 



412 



