Stran 1 iz 168 rezultatov
OBJECTIVE
To describe histopathologic features of anterior optic nerves of 12 eyes enucleated for sustained high ocular pressure from iris-ciliary body melanomas in 10 and choroidal melanomas with chronic angle closure in 2.
METHODS
In this retrospective study, we analyzed cases indexed in 2 eye
A 68-year-old man died 18 days after the onset of ischemic optic neuropathy caused by histologically proven giant-cell arteritis. On histopathologic study of the eye, ischemic necrosis of the prelaminar and retrolaminar optic nerve was seen, along with the massive presence of acid
Ten cases of myxomatous degeneration of the heart valves in Black subjects are described. The striking features, compared with other series, were the comparative youth of the patients and the predominance of aortic valve involvement. There was also a significant percentage of control subjects with
The arterial changes designated as "hyalinosis" in the vessels of spontaneously hypertensive rats were studied using light- and electron-microscopy. Such changes were classified into three types, hyaline, fibrinoid and atypical fibrinoid degeneration. Hyaline material consisted mainly of excessive
Although valvular lesions are rare in acromegaly, two patients with click-murmur syndrome and one patient with aortic insufficiency secondary to myxomatous degeneration and cystic medial necrosis of the aorta have been reported. Growth hormone excess has been postulated to potentiate these
METHODS
Report of two cases of acute lumbar nerve root compression caused by myxomatous degeneration of the ligamentum flavum.
OBJECTIVE
To report a rare cause of acute lumbar nerve root compression.
METHODS
Orthopaedic department, Osaka, Japan.
BACKGROUND
Two patients, both 50-year-old men
Steroid atrophy was induced in 3 volunteers by the continuous, occlusive application of clobetasol propionate to the forearms for 6 weeks. The changes were followed sequentially by light, scanning, and transmission electron microscopy. a 59% decrease in viable epidermal thickness was noted after the
OBJECTIVE
The pathogenesis of non-familial, sporadic ascending aortic aneurysms (SAAA) is poorly understood, and the relationship between ascending aortic atherosclerosis and medial degeneration is unclear. We evaluated the prevalence and severity of aortic atherosclerosis and its association with
A case of advanced pigmentary retinal degeneration is described. Posterior subcapsular cataract and a remnant of the anterior hyaloid system on the posterior lens surface were found. Extensive dispersion of pigment and organization of the vitreous base were present. Gliosis was seen in the retina,
From 1989 through 1993 thirty-eight patients underwent aortic valve replacement at our institution for isolated aortic regurgitation (AR) caused by idiopathic degeneration of the valve. There were 32 male and 6 female patients aged between 33 and 74 years with a mean of 59 years. Preoperative New
The essence of the process in which the corneal tissue disappears in atrophy of the eye has not yet been studied. The authors of this investigation studied the changes in cornea as they developed after a gross perforating injury to the eye in rabbit. They found that the diameter of the cornea had
To establish the etiology of isolated aortic valvular regurgitation, histologic examination was carried out on 27 consecutive surgically removed aortic valves from patients with aortic regurgitation. In 12 patients, the regurgitation was due to rheumatic or syphilitic valvular disease or a
Clinical and pathologic data were reviewed in 55 patients who had valve replacement for pure aortic regurgitation (AR) during a 6-year period. The clinical histories established the cause for AR in 34 cases: 11 rheumatic, 13 infective endocarditis, 4 congenital, 4 associated with aortic aneurysms