Andrzej Radek

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Pituitary tumors diagnosed before surgery as "non-functioning" in fact represent a heterogenous group, the majority of which express glycoprotein hormones or their free subunits. It is known that some of them expresses somatostatin receptors, but the data available until now rarely refer to the receptor subtype. Five different subtypes of somatostatin(More)
The expression of proliferating cell nuclear antigen (PCNA) correlates to cell proliferation and for this reason it is commonly considered as one of proliferation markers. Since proliferation rate is an important factor determining the tumor aggressiveness, the evaluation of PCNA index (the percentage of PCNA-immunopositive nuclei in the investigated tumor(More)
The authors report on the efficacy of balloon kyphoplasty applied to obliteration of symptomatic cervical hemangioma. This 49-year-old woman suffered from progressive neck pain, numbness of the upper extremities, and frequent headaches. Hemangioma of the C-7 vertebral body was diagnosed. Kyphoplasty was performed successfully through a right anterolateral(More)
Cervicothoracic junction and upper thoracic spine down to T4 can be reached through anterior approach via sternotomy. Transsternal approach is the best route to gain access to lesions localized within vertebral bodies of the upper thoracic spine allowing for their resection, interbody fusion and replacement with bone cement. Consecutive modifications of(More)
The authors describe a case of spinal intracanal cysticercosis. The cysts were situated intradurally, provoking radicular symptoms: pain, paresis. CT investigations showed herniation of discs L4/L5 and L5/S1 interpreted as the cause of the mentioned symptoms. Surgical treatment included discectomy L4/L5 and L5/S1. Recurrence of symptoms was investigated by(More)
The authors describe a rare case of coexistence of cerebral angioma with hyperostosis frontalis interna in a female patient aged 28 years, suffering from mental disturbances. The coexistence of these two diseases in one person caused considerable diagnostic and therapeutic difficulties. The described case points out that both these conditions may occur(More)
The use of spinal implants in the pediatric population is controversial in terms of skeletal immaturity. The authors present the case of a 12-year-old boy with displaced Type III odontoid fracture, successfully treated by direct screw fixation. Fractures defined as Type II and Type III according to the classification by Anderson and D'Alonzo are instable(More)
Promising results have been obtained using brachytherapy in the treatment of brain tumors. Between November 99 and August 2000, 28 patients with brain tumors (15 newly diagnosed gliomas, 11 recurrent gliomas, 2 metastases) underwent implantation of temporary iridium 192 sources with stereotactic technique. This group received external beam radiation therapy(More)
BACKGROUND AND PURPOSE To evaluate the efficacy of surgical treatment of cervical disc disease using a relatively novel type of cage, to assess the association between changes in cervical spine curvature and pain intensity as well as quality of life, to assess how often implants of different sizes were applied, and to analyze statistically the occurrence of(More)
Diffusion tensor-based spinal cord tractography is a technically complicated but rapidly evolving diagnostic method. The difficulties result from the volume of the spinal cord, the constant pulsing of the cerebrospinal fluid and respiratory movements. The method is being used more and more frequently to examine long spinal tracts in patients with(More)