Anders J. Leu

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Despite a clinically recognized association between the lymphatics and metastasis, the biology of tumor-lymphatic interaction is not clearly understood. We report here that functional lymphatic capillaries are absent from the interior of a solid tumor, despite the presence within the tumor of the lymphangiogenic molecule vascular endothelial growth factor(More)
Despite its relevance to the physiology of lymph formation and propulsion, the instantaneous flow velocity in single lymphatic capillaries has not been measured to date. The method of fluorescence recovery after photobleaching (FRAP) was adapted for this purpose and used to characterize flow in the lymphatic capillaries in tail skin of anesthetized mice(More)
The present study had two goals: 1) to establish an animal model in which a large network of the initial lymphatics of the skin can be investigated in vivo and 2) to measure effective flow velocity (defined as axial component of the flow velocity) in the lymph capillary network of the skin for the first time. A fluorescence microlymphography technique was(More)
PURPOSE To define the prevalence of popliteal artery occlusion during active plantar flexion in normally active and highly trained young volunteers by measuring plantar flexion force and to assess the force level associated with popliteal artery occlusion. METHODS Eighty-four limbs of 42 healthy subjects were studied. Eighteen subjects were highly trained(More)
We report on three patients with a symptomatic inguinal mass as a late complication of repetitive arthroplastic hip surgery. In one case, there was a false aneurysm and in two cases a so-called "synovial cyst". A synovial cyst is usually an enlarged iliopsoas bursa in communication with the capsule of the hip joint. Hypersecretion in arthritic joints may(More)
OBJECTIVES to evaluate the long-term outcome after recanalisation of chronic iliac artery occlusions by combined catheter therapy without stent placement. DESIGN retrospective study. MATERIAL AND METHODS between 1979 and 1995 75 consecutive patients were treated (53 men, 22 women; mean age 63.1+/-13.7 years; mean length of the occluded segment 6.9+/-3.5(More)
The lymphatic clearance of the human skin at the instep of the foot was measured in 20 healthy volunteers (mean age +/- SD 33.8 +/- 10.5 years). Ten microliters of fluorescein isothiocyanate-dextran 150,000 were injected intradermally and the fluorescent light intensity of the deposit was measured 10 min and 24 h after injection by window densitometry.(More)
The results of conventional capillary microscopy and fluorescence videomicroscopy are described in 7 patients with well established dermatomyositis (mean age 34.3 +/- 19 years, mean duration of the illness 25.7 +/- 26.9 months). All patients showed marked microangiopathy characterized by avascular fields, increased capillary tortuosity and enlargement, and(More)
Introduction Two years later she presented with acute chest pain and dyspnoea. Ventilation/perfusion scintigraphy Pulmonary embolism frequently results from deep showed a high probability for pulmonary embolism (Fig. 1(B)). Duplex sonography revealed a largely venous thrombosis. For both conditions anticoagulation is the recommended treatment. We report(More)
Infrapopliteal pseudoaneurysms and arteriovenous fistulae are known complications of Fogarty balloon embolectomy. Management of these complications in two patients with associated critical foot ischemia by modified interventional embolization techniques is described.