Elżbieta Michalak

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BACKGROUND The potential role of VEGF in osteosarcoma has been evaluated in several studies. The majority of them included heterogeneous and limited series of patients, giving conflicting results. The aim of presented study is to evaluate the prognostic role of VEGF-A in biopsy samples of clinically homogeneous group of osteosarcoma patients with at least 5(More)
BACKGROUND Response to chemotherapy is a prognostic factor in patients with Ewing sarcoma (ES); the role of FDG PET to predict response in these patients has not been thoroughly investigated. We evaluated the diagnostic accuracy and the potential of FDG PET to predict response to chemotherapy (CHT). MATERIALS AND METHODS We analyzed data of 50 patients(More)
The aim of the study was to compare stroke volume (SV), ejection time (ET) and pre-ejection period (PEP) measurements obtained using a central haemodynamics ambulatory monitoring device based on impedance cardiography (ICG), in supine and tilted positions (60°), with pulsed Doppler echocardiography as a noninvasive reference method. The Holter-type ICG(More)
The change in the species richness following a gradual invasion of Carpinus betulus in the patch of oak forest (Potentillo albae-Quercetum) in Białowieża was studied between years 1980 and 1994. Species richness and species deletion were compared to the spatial variation in the density and size of C. betulus individuals. The study showed that, in a(More)
Cervical spinal tuberculosis is a rare variant of extra-pulmonary tuberculosis. We present the case of Vietnamese woman, aged 48, who was admitted to the Department of Neurosurgery because of a cervical spine (C7) compression fracture. Several months earlier, the patient complained of neck pain and numbness of the hands. On physical examination, the woman(More)
Congenital central nervous tumours form a unique group of neoplasms. They are different from other tumour groups not only due to the onset time but also to their histopathology, anatomic location, and biologic behaviour. Congenital glioblastoma is one of the rarest types of congenital brain tumours and is uncommon in the prenatal period. We report a rare(More)
BACKGROUND Treatment of giant melanocytic nevi (GMN) remains a multidisciplinary challenge. We present analysis of diagnostics, treatment, and follow- up in children with GMN to establish obligatory procedures in these patients. MATERIAL/METHODS In 24 children with GMN, we analyzed: localization, main nevus diameter, satellite nevi, brain MRI,(More)
Twenty-four children with giant congenital melanocytic nevi underwent brain MRI at 1.5 T scanner. Melanin deposits in the brain were found in seven children (29.2%) located in temporal lobes, thalamus, cerebellum, and pons. One patient showed leptomeningeal involvement. Six patients were asymptomatic, and one had epilepsy. As opposed to previous reports,(More)
Cervical spinal tuberculosis is a rare variant of extra-pulmonary tuberculosis. We present the case of Vietnamese woman, aged 48, who was admitted to the Department of Neurosurgery because of a cervical spine (C7) compression fracture. Several months earlier, the patient complained of neck pain and numbness of the hands. On physical examination, the woman(More)
BACKGROUND Ewing sarcoma (ES) is the second most common pediatric malignant bone tumor with a wide spectrum of clinical presentations. Although metastatic disease to the lungs is often the cause of death, isolated lung metastases at diagnosis are not frequent. The specific role of chemotherapy, surgery, and lung radiation has not been clearly defined. We(More)