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We examined the capillaries in muscle biopsy specimens from two patients with Ullrichs disease with collagen VI deficiency by light and electron microscopy. Collagen VI plays an important role in platelet aggregation for binding von Willebrand factor. Using immunohistochemistry, collagen VI was shown to be absent on capillaries from patients with Ullrichs disease, while von Willebrand factor, collagen...
Abstract We found a microvascular endothelial abnormality in a biopsy specimen from the gastrocnemius muscle of a patient with gastric cancer, who had severe myalgia and angialgia in the calf region with the symptoms of thrombophlebitis. There were no definite findings of inflammatory myopathy in histochemical and immunohistochemical studies. Electron microscopic examination revealed the accumulation...
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