[Desmoplastic tumors with multiple differentiation. A new entity. Six cases].

antigenretrieve
June 28, 2021 Lieven 0 Comments

[Desmoplastic tumors with multiple differentiation. A new entity. Six cases]. Desmoplastic tumours with divergent differentiation are principally located in the abdomen and develop locally or regionally. They occur in adolescents or young adults and are characterized at histology by a proliferation of undifferentiated small cells surrounded by a dense stroma. Only immuno–histo–chemistry provides the diagnosis. Since their chemosensitivity …

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Complex impedance spectroscopy for monitoring tissue responses to inserted neural implants.

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April 28, 2021 Lieven 0 Comments

Complex impedance spectroscopy for monitoring tissue responses to inserted neural implants. A series of animal experiments was conducted to characterize changes in the complex impedance of chronically implanted electrodes in neural tissue. Consistent trends in impedance changes were observed across all animals, characterized as a general increase in the measured impedance magnitude at 1 kHz. …

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