Gray platelet syndrome

Gray platelet syndrome Lack of alpha granules... 

Mori, K., Suztrki, S., and Sugai, K., Electron microscopic and functional smdies on platelets in gray platelet syndrome. Tohoku J. Exp. Med. 143, 261-287 (1984). 

Levy-Toledanos, S., Caen, J. R, Breton-Gorius, J., etal, Gray platelet syndrome Alpha-granule deficiency Its influence on platelet function. J. Lab. Clin. Med. 98, 831-848 (1981). 

Lages, B., Sussman, I. I., Levine, P. S., et al., Platelet alpha granule deficiency associated with decreased P-Selectin and selective impairment of thrombin-induced activation in a new patient with gray platelet syndrome (alpha-storage pool deficiency). J. Lab. Clin. Med. 129, 364-375 (1997). 

Defects of platelet secretory granules—the cause of gray-platelet syndrome. 

Fig. 8 Patient with hypertensive encephalopathy secondary to eclampsia with the HELLP (hemolysis, elevated liver enzymes, and low platelets) syndrome, (a) A T2-weighted MRl showing the extensive cerebral edema in the posterior white matter regions with less involvement of the gray matter, (b) Diffusion-weighted images with only one small area of involvement. The lack of DWl changes is consistent with this being a vasogenic type of edema, and the patient had a good recovery without residual...

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