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Johannes Bjornsson

Researcher at University of Iceland

Publications -  73
Citations -  4360

Johannes Bjornsson is an academic researcher from University of Iceland. The author has contributed to research in topics: Giant cell arteritis & Cancer. The author has an hindex of 31, co-authored 73 publications receiving 4115 citations. Previous affiliations of Johannes Bjornsson include Mayo Clinic & University of Rochester.

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Primary chondrosarcoma of long bones and limb girdles

TL;DR: Chondrosarcomas are common solid malignant tumors of bone, second in incidence only to osteosarcoma, and require long follow‐up intervals for meaningful survival analysis.
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Cancer as a complex phenotype: pattern of cancer distribution within and beyond the nuclear family.

TL;DR: It is concluded that genetic factors are involved in the etiology of many cancers and that these factors are in some cases shared by different cancer sites, and a significantly increased RR conferred upon mates of patients with cancer at some sites indicates that shared environment or nonrandom mating for certain risk factors also play a role in the familial clustering of cancer.
Journal Article

Tuberous sclerosis-associated renal cell carcinoma : Clinical, pathological, and genetic features

TL;DR: The findings suggest that some TSC-associated RCCs have clinical, pathological, or genetic features distinguishing them from sporadic RCC, and that the TSC tumor suppressor genes may play a specific pathogenic role in these tumors.
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Formation of new vasa vasorum in vasculitis. Production of angiogenic cytokines by multinucleated giant cells.

TL;DR: In this article, the formation of new vasa vasorum is regulated by inflammatory cells and not by arterial wall cells, raising the possibility that it represents a primary disease mechanism and not a secondary hypoxia-induced event.