Hypoplasia and obstruction of the circle of Willis in a case of atypical cerebral hemorrhage and its relationship to Nishimoto's disease

Moya-moya disease: clinical and pathological report of a case with associated myopathy.

“…The changes which have been reported include the marked prominence of surface vessels (Maki and Nakata, 1965;Halonen et al, 1973) and of deep vessels throughout the brain (Vuia et al, 1970), or occlusion of one or more of the components of the circle of Willis (Kawakita et al, 1965). Some authors have described vessels as hypoplastic generally (Vuia et al, 1970) while others described hypoplasia of one or other constituent of the vessel wall.…”

Intracranial saccular aneurysm and moyamoya disease.

“…1113 Harper recently proposed that the sympathetic nervous system is the coarse adjuster of cerebral blood flow (CBF), as contrasted to the fine control exerted by tissue metabolism. 14 The concept that mechanisms intrinsic to the brainstem, and probably neurogenic in character, are capable of influencing CBF and cerebral metabolic rate is supported by a variety of studies. Pial and cortical flow, as well as cerebral metabolism, may be increased by electrical stimulation of many areas in the brainstem 15 " 17 and hypothalamus.…”

Multiple Vascular Thrombosis with Vasculogenic Lesions in the Course of Meningoencephalitis

“…Busch [1] likewise reports a case of abnormal collateral circulation. V uia et al [11] consider as etiologic a process of obliterat ing endarteritis evolving against a background of congenital vascular hy poplasia. In 1969, Taveras [10] outlines an obstructive disease-follow ing study of 10 cases, of which only 1 was Japanese, certain characteris tic criteria of the syndrome were indicated, among which evolution and regression of the disease assessed angiographically is an essential condi tion that explains survival of the patients and paucity of the pathoanatomic examinations.…”