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Prokop M, Vesely M, Capek P, Paidar M, Bouzek K. High-temperature PEM fuel cell electrode catalyst layers part 1: Microstructure reconstructed using FIB-SEM tomography and its calculated effective transport properties. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2
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Prokop M, Capek P, Vesely M, Paidar M, Bouzek K. High-temperature PEM fuel cell electrode catalyst layers Part 2: Experimental validation of its effective transport properties. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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3
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O'Malley O, Trompeter AJ, Krishnanandan S, Vesely M, Holt P, Goh G, Papadakos N, Bhatia V, Hing CB. How common are vascular injuries in open tibial fractures? A prospective longitudinal cohort study. Eur J Orthop Surg Traumatol 2019; 29:1119-1124. [PMID: 30864017 PMCID: PMC6570774 DOI: 10.1007/s00590-019-02416-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 03/05/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND Tibial fractures have an incidence of 15% of all adult fractures. They have been shown to have the highest incidence of non-union in long bone fractures and the highest incidence of vascular injury. Evidence from the literature suggests that a good vascular supply is important to ensure bone union. The aim of our study was to prospectively assess the incidence of vascular injuries in open tibial fractures and determine whether they were associated with an increased risk of non-union. METHODS We performed a prospective study to investigate the incidence of arterial injuries with computed tomography angiography (CTA) in patients with Gustilo-Anderson grade I-III open tibial fractures between 2013 and 2015. CTA was performed with the trauma series at acute admission and reported by two independent musculoskeletal radiologists. Patients were followed up with clinical and radiographic assessment for 1 year. RESULTS We recruited 77 patients into the study, and 56 patients (47 males, 9 females) were available for the final analysis, between 16 and 90 years of age. At the initial assessment, 29% had signs of arterial injury with active extravasation in 5%. The most common site of injury was in the diaphysis (87.5%), and the commonest mechanism was a road traffic accident. We found no significant relation between occult vascular injury and non-union (p > 0.05). CONCLUSION The incidence of vascular injury in open tibial fractures is 29%, and CTA is therefore a useful test in identifying vascular injuries that may require vascular intervention.
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Affiliation(s)
- O O'Malley
- Department of Trauma and Orthopaedics, St George's University Hospitals NHS Foundation Trust, London, UK.
| | - A J Trompeter
- Department of Trauma and Orthopaedics, St George's University Hospitals NHS Foundation Trust, London, UK
| | - S Krishnanandan
- Department of Trauma and Orthopaedics, St George's University Hospitals NHS Foundation Trust, London, UK
| | - M Vesely
- Department of Trauma and Orthopaedics, St George's University Hospitals NHS Foundation Trust, London, UK
| | - P Holt
- Department of Trauma and Orthopaedics, St George's University Hospitals NHS Foundation Trust, London, UK
| | - G Goh
- Department of Radiology, The Alfred Hospital, Melbourne, Australia
| | - N Papadakos
- Department of Trauma and Orthopaedics, St George's University Hospitals NHS Foundation Trust, London, UK
| | - V Bhatia
- St George's University London, St George's University Hospitals NHS Foundation Trust, London, UK
| | - C B Hing
- Department of Trauma and Orthopaedics, St George's University Hospitals NHS Foundation Trust, London, UK
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Simcik M, Ruzicka M, Karaszova M, Sedlakova Z, Vejrazka J, Vesely M, Capek P, Friess K, Izak P. Polyamide thin-film composite membranes for potential raw biogas purification: Experiments and modeling. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.05.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Vesely M, Vajglova Z, Kotas P, Kristal J, Ponec R, Jiricny V. Model for photodegradation of polybrominated diphenyl ethers. Environ Sci Pollut Res Int 2015; 22:4949-4963. [PMID: 25345925 DOI: 10.1007/s11356-014-3741-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 10/17/2014] [Indexed: 06/04/2023]
Abstract
Polybrominated diphenyl ethers (PBDE) were, and in some countries still are, used as flame retardants for plastic materials. When released from plastics, PDBE cause harm to the environment. This creates the incentive for further investigation of the PBDE degradation. This work focused on a formulation of a PBDE photodegradation model based on the PBDE properties obtained by the quantum chemical calculations. The proposed model predicted degradation routes of arbitrary PBDE congener. The routes of selected congeners were validated by the two independently published data sets and showed the high fitting degree. The model can be easily modified for any reactor system if the initial reaction rate constant of one congener is available for the given system.
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Affiliation(s)
- M Vesely
- Institute of Chemical Process Fundamentals, AS CR, v. v. i., Rozvojova 135, 165 02, Prague 6, Czech Republic
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6
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Bonaros N, Schachner T, Kofler M, Lehr E, Lee J, Vesely M, Zimrin D, Friedrich G, Bonatti J. 056 * ADVANCED HYBRID CLOSED CHEST CORONARY REVASCULARIZATION: AN INNOVATIVE STRATEGY FOR THE TREATMENT OF COMPLEX MULTIVESSEL CORONARY ARTERY DISEASE. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt372.56] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Abstract
INTRODUCTION The British Orthopaedic Association/British Association of Plastic, Reconstructive and Aesthetic Surgeons guidelines for the management of open tibial fractures recommend early senior combined orthopaedic and plastic surgical input with appropriate facilities to manage a high caseload. The aim of this study was to assess whether becoming a major trauma centre has affected the management of patients with open tibial fractures. METHODS Data were obtained prospectively on consecutive open tibial fractures during two eight-month periods: before and after becoming a trauma centre. RESULTS Overall, 29 open tibial fractures were admitted after designation as a major trauma centre compared with 15 previously. Of the 29 patients, 21 came directly or as transfers from another accident and emergency deparment (previously 8 of 15). The time to transfer patients admitted initially to local orthopaedic departments has fallen from 205.7 hours to 37.4 hours (p=0.084). Tertiary transferred patients had a longer hospital stay (16.3 vs 14.9 days) and had more operations (3.7 vs 2.6, p=0.08) than direct admissions. As a trauma centre, there were improvements in time to definitive skeletal stabilisation (4.7 vs 2.2 days, p=0.06), skin coverage (8.3 vs 3.7 days, p=0.06), average number of operations (4.2 vs 2.3, p=0.002) and average length of hospital admission (26.6 vs 15.3 days, p=0.05). CONCLUSIONS The volume and management of open tibial fractures, independent of fracture grade, has been directly affected by the introduction of a trauma centre enabling early combined senior orthopaedic and plastic surgical input. Our data strongly support the benefits of trauma centres and the continuing development of trauma networks in the management of open tibial fractures.
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Affiliation(s)
- J Stammers
- St George's Hospital, Blackshaw Road, Tooting, London SW17 0QT, UK.
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8
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Bonaros N, Schachner T, Zimrin D, Lehr E, Vesely M, Kohn Z, Wehman B, DeBiasi A, Friedrich G, Bonatti J. Hybrid revascularization with robot and stents: Too much of technology or true close chest surgery for multivessel disease? Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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9
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Fitzgerald O’Connor E, Vesely M, Holt P, Jones K, Thompson M, Hinchliffe R. A Systematic Review of Free Tissue Transfer in the Management of Non-traumatic Lower Extremity Wounds in Patients with Diabetes. Eur J Vasc Endovasc Surg 2011; 41:391-9. [DOI: 10.1016/j.ejvs.2010.11.013] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2010] [Accepted: 11/10/2010] [Indexed: 10/18/2022]
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10
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Heintel D, Zojer N, Schreder M, Strasser-Weippl K, Kainz B, Vesely M, Gisslinger H, Drach J, Gaiger A, Jäger U, Ludwig H. Expression of MUM1/IRF4 mRNA as a prognostic marker in patients with multiple myeloma. Leukemia 2007; 22:441-5. [PMID: 17690696 DOI: 10.1038/sj.leu.2404895] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Schützinger C, Gaiger A, Thalhammer R, Vesely M, Fritsche-Polanz R, Schwarzinger I, Ohler L, Simonitsch-Klupp I, Reinhard F, Jäger U. Remission of pure red cell aplasia in T-cell receptor γδ-large granular lymphocyte leukemia after therapy with low-dose alemtuzumab. Leukemia 2005; 19:2005-8. [PMID: 16193089 DOI: 10.1038/sj.leu.2403956] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
MESH Headings
- Aged
- Aged, 80 and over
- Alemtuzumab
- Antibodies, Monoclonal/therapeutic use
- Antibodies, Monoclonal, Humanized
- Antibodies, Neoplasm/therapeutic use
- Antineoplastic Agents/therapeutic use
- Genes, T-Cell Receptor delta
- Genes, T-Cell Receptor gamma
- Humans
- Leukemia, T-Cell/complications
- Male
- Red-Cell Aplasia, Pure/drug therapy
- Red-Cell Aplasia, Pure/etiology
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Pokieser W, Cassik P, Fischer G, Vesely M, Ulrich W, Peters-Engl C. Malignant Pleural and Pericardial Effusion in Invasive Breast Cancer: Impact of the Site of the Primary Tumor. Breast Cancer Res Treat 2004; 83:139-42. [PMID: 14997044 DOI: 10.1023/b:brea.0000010706.24181.b6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND Malignant effusion in invasive breast cancer, either pleural or pericardial, is associated with a poor survival rate. We investigated the role of the location of invasive breast cancer in developing malignant pleural or pericardial effusion. METHODS Three thousand eight hundred and fifty six women with a history of invasive breast cancer between 1960 and 1994 were analyzed in a retrospective study. Two hundred and six patients (5.34%; group A) developed malignant pleural and/or pericardial fluid as the first visible clinical sign of distant metastasis. A control group of 206 patients (group B) without malignant effusions were matched in terms of clinical and pathological characteristics. The two groups were compared in respect of the location of the primary tumor. Fifty patients in group A (n = 50; 24.2%) had tumors in the inner quadrants, 83 patients (n = 83; 40.3%) in the outer quadrants, and 13 patients (n = 13; 6.3%) in a central location. No data were available for 60 patients (n = 60; 29.1%). In group B, 12 patients (n = 12; 5.9%) had tumors in the inner quadrants, 140 patients (n = 140; 68.0%) in the outer quadrants, 14 patients (n = 14; 6.8%) had centrally located tumors, while no data were available for 40 patients (n = 40; 19.4%). Invasive ductal carcinomas (IDC) located in the inner quadrants were highly significantly associated with increased pleural or pericardial effusion as the first site of distant metastasis (p <or= 0.0001; chi-square tests). CONCLUSION IDC in the inner quadrants were associated with a 4-fold higher rate of malignant pleural or pericardial effusions. Further studies will have to determine whether tumor location is a criterion for more aggressive adjuvant therapy.
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Affiliation(s)
- W Pokieser
- Institute for Pathology, Krankenhaus Lainz, Vienna, Austria.
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13
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Balogh B, Mayer W, Vesely M, Partsch H, Piza-Katzer H. [Periarterial sympathectomy of the radial and ulnar arteries in Raynaud's phenomenon--a preliminary study]. HANDCHIR MIKROCHIR P 2002; 34:374-80. [PMID: 12601603 DOI: 10.1055/s-2002-37471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
PURPOSE Assessment of the post-operative results of peripheral sympathectomy in Raynaud's phenomenon. METHODS Six patients with therapy refractory Raynaud's phenomenon underwent a 4 cm long adventitial stripping of the radial and ulnar arteries proximal to the wrist. The nerve of Henle was followed up to the surface of the palmar arch and resected. The pre- and postoperative examinations were performed using the help of a questionnaire, telethermography and infra-red laser reflexion rheography. RESULTS All but two patients (two hands) were free of complaints (four patients, six hands), the three ulcers on the finger tips healed well. According to the questionnaire there was a dramatic improvement in the quality of life of the patients. CONCLUSION In the follow-up period of two years, there was no recurrence. Adventitial stripping of the radial and ulnar arteries and resection of the nerve of Henle proximal to the wrist have demonstrated favourable results in the treatment of therapy-resistant complaints in Raynaud's phenomenon.
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Affiliation(s)
- B Balogh
- Abteilung für Plastische und Wiederherstellungschirurgie, KH Lainz der Stadt Wien, Vienna, Austria.
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14
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Abstract
Adventitial stripping of the palmar arch, the palmar common digital arteries, or the proper digital arteries is a last resort in the treatment of refractory primary or secondary Raynaud's phenomenon. Seven patients who had adventitial stripping of the ulnar and radial arteries proximal to the wrist and resection of the nerve of Henle, if identifiable, are presented. All of them were evaluated by telethermography, acral rheography, and a questionnaire before and after surgery. All were asymptomatic after surgery with satisfactory healing of the ulcers at the fingertips. None of them relapsed during the follow-up time of 1.5 years.
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Affiliation(s)
- Brigitta Balogh
- Department of Plastic and Reconstructive Surgery, KH Lainz, Wien, Austria
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15
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Abstract
PURPOSE In the hand surgery literature, more and more studies seem to indicate that the number of sympathetic fibers in the median and the ulnar nerves varies. However, there are no studies that confirm this suspicion. METHOD AND MATERIAL Six hours post mortem samples were taken from the median and ulnar nerves, the superficial branch of the radial nerve, and from all digital nerves (each five females and males, average age 78 years). 13 samples were taken from one hand. To make sympathetic fibers visible, the immunohistochemical staining technique with tyrosinhydroxylase (TH) antibodies was used. Quantitative assessment of the sympathetic axons was made in whole cross-sections of the nerve. Statistical evaluation was performed with Wilcoxon rank-sum tests. RESULTS The TH-positive axons are arranged in groups and are located in the endoneurium. No isolated sympathetic fibers were found in the peri- and epineurium. TH-positive axons were present on the arterial walls including the smallest arterioles. Proximal to the wrist, the median nerve has more sympathetic fibers than the ulnar nerve. The number, however, of the fibers was the same in each fascicle. A comparison of the digital nerves shows significant differences only between the radial nerve of the thumb and the ulnar nerve of the ring finger and between the radial nerve of the index finger and the ulnar nerve of the little finger. CONCLUSION Although the median nerve proximal to the wrist has on average 20 fascicles and the ulnar nerve only 14, the number of fibres in each fascicle is the same. Therefore, based on the present study we conclude that there is no significant difference in the sympathetic fiber distribution of the two nerves.
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Affiliation(s)
- B Balogh
- Abteilung für Plastische und Wiederherstellungschirurgie, KH Lainz der Stadt Wien, Vienna, Austria.
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16
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Wehner R, Gallizzi K, Frei C, Vesely M. Calibration processes in desert ant navigation: vector courses and systematic search. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2002; 188:683-93. [PMID: 12397439 DOI: 10.1007/s00359-002-0340-8] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2002] [Indexed: 11/24/2022]
Abstract
This study investigates the ability of desert ants to adapt their path integration system to an "open-jaw" training paradigm, in which the point of arrival (from the nest) does not coincide with the point of departure (to the nest). Upon departure the ants first run off their home vector and then start a systematic search for the nest. Even if they are subjected to this training-around-a-circuit procedure for more than 50 times in succession, they never adopt straight homeward courses towards the nest. Their path integration vector gets slightly recalibrated (pointing a bit closer to the nest), and their search pattern gets asymmetric (with its search density peak shifted towards the nest), but the bipartite structure of the inbound trajectory invariably remains. These results suggest (1). that the ants cannot learn separate inbound and outbound vectors (i.e. vectors that are not 180 degrees reversals of each other), (2). that the recalibrated vector is dominated by the ant's outbound course, (3). that the recalibration of the vector and the modification of the search geometry are fast and flexible processes occurring whenever the ant experiences a mismatch between the stored and actual states of its path integrator.
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Huber S, Vesely M, Medl M, Czembirek H. Low-grade mucosa-associated lymphoma of the breast: radiological-pathological correlation. Eur Radiol 2002; 12:1093-6. [PMID: 11976851 DOI: 10.1007/s003300101035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2001] [Revised: 05/29/2001] [Accepted: 06/05/2001] [Indexed: 11/27/2022]
Abstract
Primary breast lymphoma generally is a rare disease. We present a case of a low-grade mucosa-associated (MALT) lymphoma of the breast in a 32-year-old woman, a distinctive type of localized non-Hodgkin's lymphoma (NHL), which is very seldom located in the breast. We performed differential diagnosis and radiological-pathological correlation with regard to typical microscopic criteria and clinical relevance that apply for that special entity.
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Affiliation(s)
- S Huber
- Department of Radiology, Lainz Hospital, Wolkersbergenstrasse 1, 1130 Vienna, Austria.
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18
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Huber S, Vesely M, Zuna I, Delorme S, Czembirek H. Fibroadenomas: computer-assisted quantitative evaluation of contrast-enhanced power Doppler features and correlation with histopathology. Ultrasound Med Biol 2001; 27:3-11. [PMID: 11295265 DOI: 10.1016/s0301-5629(00)00282-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We aimed to evaluate whether the histopathologic variability of fibroadenomas accounts for their varied appearance in contrast enhanced power Doppler (PD). Forty patients with fibroadenomas (aged 19 to 61 years) underwent power Doppler ultrasound (US) prior to and following IV bolus injection of a microbubble contrast agent. A 3-min computer-assisted assessment of the color pixel density (CPD) was used for objective evaluation of the increase in color Doppler signals. Enhancement characteristics were correlated to histopathologic features of microvessel density and epithelial hyperplasia, patient's age, tumor size, use of exogenous hormones and menopausal status. Epithelial hyperplasia was diagnosed in 19 patients. Compared to baseline values, patients with epithelial hyperplasia showed a significant increase in mean CPD following contrast media administration (p < 0.01). There was a significant correlation to patient's age (p < 0.0001) and tumor size (p < 0.0001), but not to the use of exogenous hormones and menopausal status. Microvessel counts did not show a significant correlation to CPD at baseline (p = 0.07) or with CPD on contrast enhanced PD (p = 0.13), or with patient age (p = 0.43) or tumor size (p = 0.34). Intratumoral epithelial hyperplasia, primarily occurring in young patients, may contribute to the differential diagnostic overlap in some fibroadenomas and thus limit the ability of PD to distinguish between benign and malignant masses on the basis of enhancement characteristics.
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Affiliation(s)
- S Huber
- Department of Radiology, Lainz Hospital, Vienna, Austria.
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19
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Huber S, Medl M, Vesely M, Czembirek H, Zuna I, Delorme S. Ultrasonographic tissue characterization in monitoring tumor response to neoadjuvant chemotherapy in locally advanced breast cancer (work in progress). J Ultrasound Med 2000; 19:677-686. [PMID: 11026579 DOI: 10.7863/jum.2000.19.10.677] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A program of computer-assisted texture analysis was applied to evaluate its usefulness for objective description of changes in tumor architecture due to primary medical treatment in patients with locally advanced breast cancer. Changes in values of parameters of the statistical pattern recognition technique were compared to ultrasonographically depictable, subjectively recorded changes in echogenicity and echotexture (brightness, homogeneity) and reviewed with regard to histopathologic evaluation of tumor regression. Characteristic trends of defined quantitative texture parameters (mean gradient, mean gray value, contrast from the co-occurrence matrix) corresponded to visually depictable changes of the B-mode image and underlying histopathologic changes. The results indicate that quantitative texture analysis may aid in noninvasive monitoring of tumor response to neoadjuvant chemotherapy.
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Affiliation(s)
- S Huber
- Department of Radiology, Lainz Hospital, Vienna, Austria
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Blakolmer K, Vesely M, Kummer JA, Jurecka W, Mannhalter C, Chott A. Immunoreactivity of B-cell markers (CD79a, L26) in rare cases of extranodal cytotoxic peripheral T- (NK/T-) cell lymphomas. Mod Pathol 2000; 13:766-72. [PMID: 10912936 DOI: 10.1038/modpathol.3880133] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The monoclonal antibodies L26 (CD20) and CD79a are very useful reagents for the immunohistochemical assessment of B-cell lineage in lymphoproliferative disorders. Although very few CD20-positive peripheral T-cell lymphomas (PTL) have been reported, comprehensive analyses of CD79a reactivity in extranodal PTL and NK/T-cell lymphomas have not been performed previously. This study investigated CD79a (clone JCB117) and CD20 reactivity in 94 extranodal non-B-cell lymphomas (enteropathy-type intestinal T-cell lymphoma [n = 52], nasal NK/T-cell lymphoma [n = 11], and primary cutaneous PTL [n = 31]) and in 17 cases of nodal PTL, unspecified. In four cases (enteropathy-type intestinal T-cell lymphoma [n = 3] and nasal NK/T-cell lymphoma [n = 1]), the majority of tumor cells stained for CD79a (all CD20 negative) and one cutaneous PTL, unspecified, was CD20 positive (CD79a negative). Extensive immunophenotyping and polymerase chain reaction-based molecular analyses revealed that all five B-cell marker-positive extranodal lymphomas had a cytotoxic phenotype and did indeed represent monoclonal peripheral T-cell proliferations. To minimize the risk of misinterpretation of lymphoma cell lineage, especially in cases of extranodal, lymphoproliferative disease, we suggest the use of both CD79a and CD20 in combination with a panel of antibodies reactive to T cells, such as betaF1 and CD5, and to T cells and NK cells, such as CD3, CD2, CD56, and TIA-1.
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MESH Headings
- Adult
- Aged
- Antigens, CD/analysis
- Antigens, CD20/analysis
- CD79 Antigens
- Clone Cells
- Humans
- Immunoenzyme Techniques
- Immunophenotyping
- In Situ Hybridization
- Intestinal Neoplasms/chemistry
- Intestinal Neoplasms/pathology
- Killer Cells, Natural/chemistry
- Killer Cells, Natural/pathology
- Lymphoma, T-Cell, Peripheral/chemistry
- Lymphoma, T-Cell, Peripheral/pathology
- Male
- Middle Aged
- Paranasal Sinus Neoplasms/chemistry
- Paranasal Sinus Neoplasms/pathology
- Polymerase Chain Reaction
- Receptors, Antigen, B-Cell/analysis
- Skin Neoplasms/chemistry
- Skin Neoplasms/pathology
- T-Lymphocytes, Cytotoxic/chemistry
- T-Lymphocytes, Cytotoxic/pathology
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Affiliation(s)
- K Blakolmer
- Department of Clinical Pathology, General Hospital Vienna, University of Vienna, Austria
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21
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Medl M, Peters-Engl C, Schütz P, Vesely M, Sevelda P. First report of lymphatic mapping with isosulfan blue dye and sentinel node biopsy in cervical cancer. Anticancer Res 2000; 20:1133-4. [PMID: 10810409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
BACKGROUND Sentinel lymph node status provides important information about the status of the regional nodes in various malignant tumors. Our report describes a method of identifying the sentinel lymph nodes in cervical cancer. PATIENTS AND METHODS In three cases of early cervical cancer, isosulfan blue dye was injected paracervically into each lateral fornix immediately before surgery. RESULTS In all cases we identified two to three blue stained (sentinel) lymph nodes located either at the iliac artery or in the obturatory space. The blue colored nodes were positive for disease, all other pelvic lymph nodes removed were negative. CONCLUSIONS Our findings demonstrate that preoperative lymphatic mapping with vital blue dye is an easy to perform technique to visualize sentinel lymph nodes in cervical cancer. Sentinel lymph node status may be representative of the pelvic lymph node status in cervical cancer and thus could provide important information for further treatment.
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Affiliation(s)
- M Medl
- Department of Gynecology and Obstetrics, Lainz Hospital, Vienna, Austria.
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Schlegelberger B, Zwingers T, Harder L, Nowotny H, Siebert R, Vesely M, Bartels H, Sonnen R, Hopfinger G, Nader A, Ott G, Müller-Hermelink K, Feller A, Heinz R. Clinicopathogenetic significance of chromosomal abnormalities in patients with blastic peripheral B-cell lymphoma. Kiel-Wien-Lymphoma Study Group. Blood 1999; 94:3114-20. [PMID: 10556197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
So far, reproducible histomorphologic and immunological criteria to distinguish clinicopathologic subtypes of blastic peripheral B-cell non-Hodgkin's lymphoma (BBCL), especially centroblastic (cb) and immunoblastic (ib) lymphomas, for daily diagnostic use are still lacking. Therefore, we correlated the cytogenetic findings in 126 patients with BBCL with histopathologic diagnoses. Subclassification of cb and ib lymphomas relied on the criteria defined in the updated Kiel classification; these subtypes are also listed in the Revised European-American Lymphoma (REAL) classification and in a preliminary report on the newly established World Health Organization classification, to investigate their clinical significance. Moreover, we performed a multivariate analysis to compare the prognostic significance of cytogenetic findings with the International Index. There were significant differences in the frequency of chromosome aberrations between different BBCL subtypes: t(8;14) was predominantly present in Burkitt's lymphomas, t(14;18) in centroblastic lymphomas, deletions in 8q and 14q, changes of 4q and losses of chromosome 10 in immunoblastic lymphomas; t(11;14) was restricted to blastoid mantle cell lymphomas and associated with a poor prognosis. In cb lymphomas, deletions in 1q42-qter, duplications in 1q23-32, trisomy 5, and changes of 15q were identified as independent prognostic factors. In ib lymphomas, changes of 7q and 8q had stronger impact on survival than the International Index. These findings underline that Burkitt's, cb, ib, and blastoid mantle-cell lymphoma are biologically distinct and clinically relevant entities and that cytogenetic findings can be helpful to subtype BBCL.
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23
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Zojer N, Meran JG, Vesely M, Grüner H, Ackermann J, Dellinger C, Zimmer-Roth I, Heinz R, Drach J, Ludwig H. Trisomy 13 is associated with poor prognosis in idiopathic myelofibrosis with myeloid metaplasia. Leuk Lymphoma 1999; 35:415-21. [PMID: 10706468 DOI: 10.3109/10428199909145748] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We report a case of idiopathic myelofibrosis with trisomy 13 as the sole clonal aberration, as demonstrated by metaphase cytogenetics. The clinical course was especially poor in this case, with death in blast crisis occurring within two weeks from diagnosis. The dismal outcome bears striking similarity to two previous cases of idiopathic myelofibrosis and trisomy 13 reported in the literature. Therefore trisomy 13 may be a predictor of a rapidly fatal outcome in this otherwise indolent disease. Fluorescence in situ hybridisation (FISH) with a chromosome 13 specific probe may enhance the detection of this aberration, since only 50% of cases of idiopathic myelofibrosis are karyotyped successfully using conventional techniques.
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Affiliation(s)
- N Zojer
- First Department of Medicine and Medical Oncology, Wilhelminenspital, Vienna, Austria
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24
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Abstract
The topography of the nerve of Henle was reviewed. Fifty-two human cadaveric upper extremities were studied. In 30 (58%) the nerve was well defined; in 22 (42%) its origin from the ulnar nerve was unidentifiable. The palmar cutaneous branch of the ulnar nerve separated from the ulnar nerve 5 to 11 cm distal to the medial epicondyle of the humerus to divide into its terminal branches in the distal forearm. Four patterns were detected: ulnar, radioulnar, vessel-related, and radial. These shared a consistent vascular branch, which sent 2 branches to the ulnar artery just proximal to the distal ulnar tunnel. Using a tyrosine hydroxylase antibody-based immunohistochemistry technique the nerve was shown to carry sympathetic fibers. Motor fibers were ruled out with Karnovsky's stain, which was used in combination with the tyrosine hydroxylase method in 10 specimens.
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Affiliation(s)
- B Balogh
- Ludwig Boltzmann Institute for Quality Assurance in Plastic and Reconstructive Surgery, Krankenhaus Lainz, Austria
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25
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Zhang Q, Siebert R, Yan M, Hinzmann B, Cui X, Xue L, Rakestraw KM, Naeve CW, Beckmann G, Weisenburger DD, Sanger WG, Nowotny H, Vesely M, Callet-Bauchu E, Salles G, Dixit VM, Rosenthal A, Schlegelberger B, Morris SW. Inactivating mutations and overexpression of BCL10, a caspase recruitment domain-containing gene, in MALT lymphoma with t(1;14)(p22;q32). Nat Genet 1999; 22:63-8. [PMID: 10319863 DOI: 10.1038/8767] [Citation(s) in RCA: 282] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Mucosa-associated lymphoid tissue (MALT) lymphomas most frequently involve the gastrointestinal tract and are the most common subset of extranodal non-Hodgkin lymphoma (NHL). Here we describe overexpression of BCL10, a novel apoptotic signalling gene that encodes an amino-terminal caspase recruitment domain (CARD), in MALT lymphomas due to the recurrent t(1;14)(p22;q32). BCL10 cDNAs from t(1;14)-positive MALT tumours contained a variety of mutations, most resulting in truncations either in or carboxy terminal to the CARD. Wild-type BCL10 activated NF-kappaB but induced apoptosis of MCF7 and 293 cells. CARD-truncation mutants were unable to induce cell death or activate NF-kappaB, whereas mutants with C-terminal truncations retained NF-kappaB activation but did not induce apoptosis. Mutant BCL10 overexpression might have a twofold lymphomagenic effect: loss of BCL10 pro-apoptosis may confer a survival advantage to MALT B-cells, and constitutive NF-kappaB activation may provide both anti-apoptotic and proliferative signals mediated via its transcriptional targets.
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MESH Headings
- Adaptor Proteins, Signal Transducing
- Amino Acid Sequence
- B-Cell CLL-Lymphoma 10 Protein
- Binding Sites
- Blotting, Northern
- Caspases/metabolism
- Cell Death/genetics
- Cell Line
- Chromosomes, Human, Pair 1/genetics
- Chromosomes, Human, Pair 14/genetics
- DNA/chemistry
- DNA/genetics
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- In Situ Hybridization, Fluorescence
- Lymphoma, B-Cell, Marginal Zone/genetics
- Male
- Molecular Sequence Data
- Mutation
- NF-kappa B/metabolism
- Neoplasm Proteins/chemistry
- Neoplasm Proteins/genetics
- Neoplasm Proteins/metabolism
- Protein Structure, Tertiary
- Sequence Alignment
- Sequence Analysis, DNA
- Sequence Homology, Amino Acid
- Tissue Distribution
- Translocation, Genetic
- Tumor Cells, Cultured
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Affiliation(s)
- Q Zhang
- Department of Pathology and Laboratory Medicine, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
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26
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Steiner G, Tohidast-Akrad M, Witzmann G, Vesely M, Studnicka-Benke A, Gal A, Kunaver M, Zenz P, Smolen JS. Cytokine production by synovial T cells in rheumatoid arthritis. Rheumatology (Oxford) 1999; 38:202-13. [PMID: 10325658 DOI: 10.1093/rheumatology/38.3.202] [Citation(s) in RCA: 173] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE To investigate the production of cytokines by T cells in patients with rheumatoid arthritis (RA), reactive arthritis (REA) and osteoarthritis (OA). METHODS The lymphokines interleukin (IL)-2, IL-4, interferon gamma (IFN-gamma) and tumour necrosis factor beta (TNF-beta), as well as the monokines IL-1, IL-6 and TNF-alpha, were measured by immunoassays in sera and synovial fluid (SF) from patients with RA, REA and OA. In addition, cytokine expression was studied by immunohistochemistry in synovial membrane tissue sections from patients with RA and OA. RESULTS Almost 60% of RA sera contained at least one of the cytokines investigated, though in low concentrations, whereas cytokines were generally not detectable in sera from REA and OA patients. In contrast, cytokines were found in virtually all SF; thus, the majority of SF from RA patients contained IFN-gamma (median level 17 pg/ml) in addition to the monokines IL-6 (4700 pg/ml) and TNF-alpha (157 pg/ml). IFN-gamma and IL-6 (but not TNF-alpha) were also frequently measured in SF from REA patients, whereas OA samples typically contained only IL-6. Immunohistochemical analysis of tissue sections from RA patients revealed lymphokine expression in 0.1-0.3% of T cells, particularly IL-2 and IFN-gamma, and to a lesser extent also IL-4. Interestingly, the expression of TNF-alpha and IL-6 by synovial T cells was also observed. The majority of cytokine-expressing T cells were CD4-positive T-helper cells typically found in perivascular areas, whereas cytokine-producing CD8-positive T cells were found distributed throughout the synovium. As expected, in specimens from OA patients, T cells were much less abundant and expression of cytokines could not be detected. CONCLUSION These data clearly demonstrate production of cytokines by T cells in RA synovial tissue, indicating that activated T cells play a role in the pathophysiological events of RA.
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Affiliation(s)
- G Steiner
- Division of Rheumatology, University of Vienna, Ludwig Boltzmann-Institute of Rheumatology, Austria
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27
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Chott A, Vesely M, Simonitsch I, Mosberger I, Hanak H. Classification of intestinal T-cell neoplasms and their differential diagnosis. Am J Clin Pathol 1999; 111:S68-74. [PMID: 9894471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
We studied 42 intestinal T-cell lymphomas (ITLs) to establish a simple and reproducible classification. The ITLs were classified into pleomorphic small cell (n = 3), monomorphic medium-sized cell (n = 10), pleomorphic medium and large cell (n = 17), immunoblastic (n = 1), and anaplastic large cell (n = 9) lymphomas. Two cases were unclassifiable. Overlapping histologic features were noted between some cases and also within the same tumor and between multiple lesions of the same patient. Histologic evidence of enteropathy was present in most cases. The ITLs expressed cytoplasmic CD3 and antigens associated with cytolytic function (TIA-1, granzyme B), but not CD4 and CD5. Six of the 10 monomorphic medium-sized cell lymphomas were CD56+ T-cell lymphomas. Because of the histologic heterogeneity in some ITLs, we suggest a classification system with 2 main categories: (1) small to medium-sized cell, comprising pleomorphic small and monomorphic medium-sized cell lymphomas; and (2) large cell, comprising the remaining subtypes. The differential diagnosis includes B-cell lymphomas, tumors of histiocytic origin, anaplastic carcinoma, and malignant melanoma.
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Affiliation(s)
- A Chott
- Department of Clinical Pathology, University of Vienna, Austria
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28
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Abstract
The tissue concentrations of urokinase-type plasminogen activator (u-PA), urokinase-type plasminogen activator receptor (u-PAR), plasminogen activator inhibitor type 1 (PAI-1) and tissue-type plasminogen activator (t-PA) were investigated by an ELISA technique in normal and malignant samples of the prostate from 24 patients undergoing radical prostatectomy for organ-confined prostate cancer. The median concentration of u-PA was significantly higher in cancerous than in normal prostate tissue (p = 0.006). No significant increase of u-PAR, PAI-1 and t-PA was found in cancer tissue in comparison with the benign samples (p > 0.05). Assessment of the relationship between fibrinolytic proteins and DNA ploidy revealed an increased u-PA, u-PAR and PAI-1 in diploid prostate cancer as compared with the normal controls. However, in aneuploid cancer u-PA remained high but u-PAR and PAI-1 were decreased. This led to a higher local concentration of u-PA in aneuploid samples than in normal prostate and in diploid prostate cancer. No alteration of median t-PA was found in benign prostate or in diploid or aneuploid prostate cancer. The altered expression of u-PA, u-PAR and PAI-1 in diploid and aneuploid prostate cancer suggests a possible role of fibrinolytic proteins in the different biologic behavior of tumors, and may be one explanation for the higher metastatic potential of aneuploid tumors.
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Affiliation(s)
- E Plas
- Department of Urology and Ludwig Boltzmann Institute for Urology and Andrology, Lainz Hospital Vienna, Austria
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29
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Finsterer J, Breiteneder S, Mueller MR, Wogritsch C, Vesely M, Kleinert R, Pendl G, Mamoli B. Pleural and bone marrow metastasis from supratentorial oligoastrocytoma grade III. Oncology 1998; 55:345-8. [PMID: 9663425 DOI: 10.1159/000011875] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We report a 62-year-old man with symptomatic metastasis to the pleural cavity and the bone marrow from a supratentorial oligoastrocytoma grade III, 24 years after the initial symptoms. Before tumor dissemination, the patient underwent brain surgery four times in 5 years. Six months after the last treatment, extraneural dissemination to the right pleural cavity was discovered. Despite resection of the pleural metastasis, local and distant spread to the bone marrow developed. The patient died 5 months after the occurrence of extraneural tumor metastasis. It is speculated that repeated brain surgery and extended survival may promote extraneural dissemination of supratentorial oligoastrocytoma grade III.
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Affiliation(s)
- J Finsterer
- Ludwig Boltzmann Institute for Research in Epilepsy and Neuromuscular Disorders, Vienna, Austria
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30
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Hueber W, Dominkus M, Vesely M, Mendel M, Kotz R, Czembirek H, Smolen JS. Chronic lower back pain due to sarcoma. Clin Exp Rheumatol 1998; 16:309-12. [PMID: 9631756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We describe a 74-year-old woman with extensive pelvic leiomyosarcoma presenting with uncharacteristic musculoskeletal pain of the lumbosacral region and left lower extremity. Hemipelvectomy was considered the treatment of choice, and a model for a pelvic prosthesis was constructed based on imaging analysis. However, the tumour (and the complaints) responded surprisingly well to a combined treatment regimen including superselective arterial catheter embolization, which led to tumour regression to such a degree that aggressive surgical treatment became unnecessary.
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Affiliation(s)
- W Hueber
- 2nd Medical Department, Centre for Diagnosis and Treatment of Rheumatic Diseases, Lainz Hospital, Vienna, Austria
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31
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Finsterer J, Wogritsch C, Pokieser P, Vesely M, Ulrich W, Grisold W, Mamoli B. Light chain myeloma with oro-pharyngeal amyloidosis presenting as bulbar paralysis. J Neurol Sci 1997; 147:205-8. [PMID: 9106130 DOI: 10.1016/s0022-510x(96)05326-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A 53-year old woman developed slowly progressive dysarthria, mild enlargement of the tongue and dysphagia since 1 year ago. All neurological differential diagnoses that could have explained the bulbar symptoms were excluded. The swallowing sequence was pathologic and immunoglobulins were markedly reduced. A bone marrow biopsy revealed light chain myeloma grade III. Amyloid deposits were found in the tongue but not in the kidneys. Oro-pharyngeal amyloidosis was held responsible for the described complaints. It is concluded that multiple myeloma must be considered in the differential diagnosis of bulbar paralysis and that biopsy of specific lesions is necessary to confirm local amyloidosis.
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Affiliation(s)
- J Finsterer
- Department, Neurological Hospital Rosenhügel, Vienna, Austria
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32
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Deutsch M, Meinhart J, Vesely M, Fischlein T, Groscurth P, von Oppell U, Zilla P. In vitro endothelialization of expanded polytetrafluoroethylene grafts: a clinical case report after 41 months of implantation. J Vasc Surg 1997; 25:757-63. [PMID: 9129636 DOI: 10.1016/s0741-5214(97)70307-0] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
PURPOSE Forty-one months after we performed bilateral implantation of in vitro endothelialized femoropopliteal bypass grafts in a 69-year-old patient, we obtained a central graft segment for histologic and ultrastructural investigation. METHODS Before implantation the grafts were confluently lined with autologous first passage mass cultures of pure cephalic vein endothelial cells. The precoating of the expanded polytetrafluoroethylene prosthesis was done with fibrinolytically inhibited fibrin glue. Reoperation became necessary because of symptomatic unilateral atherosclerotic lesions located in the center of one of the two in vitro lined grafts. A 21 cm long graft segment was removed and replaced by a new in vitro endothelialized expanded polytetrafluoroethylene graft. RESULTS On scanning electron microscopy a confluently covering mature endothelium was found throughout the whole length of the removed prosthesis. The endothelial identity was confirmed by a positive immunohistochemical CD 34, von Willebrand factor-staining, and the ultrastructural demonstration of Weibel Pallade bodies. The endothelium rested on a collagen IV positive basement membrane. Histologic cross sections revealed uniformly developed subintimal tissue of 1.21 +/- 0.19 mm thickness, which was separated from the intima by a distinct internal elastic membrane. The cells of this cell-rich matrix stained strongly positive for actin. Ultrastructurally, this matrix was dominated by highly contractile myofibroblasts loaded with peripherally located well-developed actin fillaments. A number of these cells also showed signs of secretory cells with a distinct endoplasmic reticulum and a Golgi complex. In areas of atherosclerotic lesions the subendothelial matrix was partially exposed, and the internal elastic membrane had to a certain extent disintegrated. Only in these areas KP-1 and MG-M1 positive foamy macrophages and CD 34 positive capillaries were found. The myofibroblasts of this diseased part of the subintimal tissue contained large lipid vacuoles. CONCLUSIONS We conclude that the confluent in vitro lining of synthetic vascular grafts with pure autologous endothelial cells facilitates graft healing, which may result in a hybrid structure with features of a native vessel.
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Affiliation(s)
- M Deutsch
- First Department of Surgery, City-Hospital Vienna Lainz, Austria
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33
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Nowotny H, Karlic H, Grüner H, Hirsch J, Vesely M, Nader A, Heinz R. Cytogenetic findings in 175 patients indicate that items of the Kiel classification should not be disregarded in the REAL classification of lymphoid neoplasms. Ann Hematol 1996; 72:291-301. [PMID: 8645741 DOI: 10.1007/s002770050175] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Cytogenetics have proved to be a valuable tool for classifying systemic lymphatic neoplasms, as this technique allows different stem line aberrations and clonal developments to be distinguished. This study was designed to analyze how far groups defined according to common cytogenetic features correlated with their position in either the Kiel (KC) or the REAL classification. Cytogenetic analyses were performed on material from 175 patients with lymphoid neoplasms (LN). Samples were prepared from peripheral blood and bone marrow in acute lymphoblastic leukemia (ALL), from bone marrow in multiple myeloma (MM), and from lymph node biopsies in lymphomas. The results of this study support the inclusion of ALL, MM, and extranodal lymphomas into a comprehensive classification, because their chromosomal aberrations were always characteristic for LN. From the cytogenetic point of view, a subgroup of ALL appears as a leukemic manifestation of lymphoblastic lymphoma. MM have structural aberrations of chromosomes 1, 11, and 14 and secondary aberrations of chromosomes 3, 6, 7, 12, 13, and 18, all of which are characteristic for lymphatic disease. The groups with follicle center cell lymphoma and mantle cell lymphoma correlate well with our results both in the low-grade subtype and in the blastic variant type, the majority of cases demonstrating t(14; 18) and its variants and t(11; 14), respectively. In contrast, the group of diffuse large B-cell (DLB) lymphomas proved to be heterogeneous on the basis of our cytogenetic results. Accordingly, we would suggest keeping the immunoblastic lymphoma (IB) subtype defined by the KC. IB demonstrates no stem line aberration in common with any other group and seems to be characterized by stem line aberrations involving chromosomes 3 and 6. As some DLB lymphomas have a t(14;18) or variant translocations involving chromosome 18, they should either be separated as a subgroup or included into the group of follicle center lymphomas.
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Affiliation(s)
- H Nowotny
- Ludwig Boltzmann Institute for Leukemia Research and Hematology, Hanusch Hospital, Vienna, Austria
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34
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Baghestanian M, Bankl HC, Sillaber C, Beil WJ, Radaszkiewicz T, Füreder W, Preiser J, Vesely M, Schernthaner G, Lechner K, Valent P. A case of malignant mastocytosis with circulating mast cell precursors: biologic and phenotypic characterization of the malignant clone. Leukemia 1996; 10:159-66. [PMID: 8558922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The phenotypic and biologic properties of malignant cells in a case of aggressive mastocytosis with multi-organ involvement, circulating mast cell precursors and absence of skin infiltrates were analyzed. Circulating mast cell precursors were detected by immunostaining using antibodies against mast cell tryptase as well as by electron microscopy. These progenitors were tryptase+/chymase- (MCT) and accounted for 10 to 20% of nucleated mononuclear blood cells (MNC). A subset of them contained metachromatic granules. As assessed by combined toluidine blue/immunofluorescence staining, the granulated mast cell precursors were found to express CD9 (P24), CD33 (gp67) and CD44 (Pgp-1), but not basophil-related markers (CD11b (C3biR), CDw17 (lactosylceramide), CD123 (il-3R alpha))or monocyte-related antigens (CD14, CD15). Expression of the mast cell growth factor (MGF) receptor, c-kit(CD117), was also demonstrable, whereas the skin mast cell marker C5aR (CD88) could not be detected on mast cell precursors. The ligand of c-kit, recombinant human (rh) stem cell factor (SCF = MGF), induced histamine release from circulating mast cell progenitors, whereas rhC5a, a potent skin mast cell-/basophil-agonist, was ineffective over the dose-range (10(-9) to 10(-7(M)) tested. Analysis of mast cell antigens in malignant mastocytosis or mast cell leukemias may be helpful to establish a diagnosis and to determine the phenotype of the clone.
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Affiliation(s)
- M Baghestanian
- Department of Internal Medicine I, University of Vienna, Austria
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35
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36
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Fischlein T, Zilla P, Meinhart J, Puschmann R, Vesely M, Eberl T, Balon R, Deutsch M. In vitro endothelialization of a mesosystemic shunt: a clinical case report. J Vasc Surg 1994; 19:549-54. [PMID: 8126870 DOI: 10.1016/s0741-5214(94)70084-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The existence of a confluently covering endothelium that is free of any thrombotic appositions can be proved 30 days after clinical implantation of an in vitro endothelialized expanded polytetrafluoroethylene graft. The recipient of the mesosystemic H-graft was a 69-year-old man who had a thrombosed portal vein following pancreatitis. Autologous endothelial cells were obtained from the external jugular vein under local anesthesia, applying the in situ cannulation technique. After low-density plating, first-passage mass cultures of 1.22 x 10(6) endothelial cells were obtained 14 days after vein excision. After precoating was accomplished with fibrinolytically inhibited fibrin glue, a 10 mm expanded polytetrafluoroethylene graft was confluently lined with the autologous endothelial cells at a seeding density of 1.2 x 10(5) cells/cm2. After a maturation period of an additional 9 days and the microbiologic exclusion of a possible infection, an 11 cm graft segment was implanted between the superior mesenteric vein and the inferior vena cava. In spite of a patent shunt the patient had a repeat bleeding episode, needed parenteral nutrition, and died of sepsis on day 30. Immediately after the graft had been taken out, specimens were processed by scanning electron microscopy and light microscopy for the immunohistochemical proof of the endothelial nature of the surface-covering cell layer. The entire graft surface displayed a confluent cell lining that was free of any thrombotic appositions. A strongly positive stain result for both factor VIII-related antigen and the fixation-resistant CD34 molecule identified these cells as endothelial. No alpha-actin-positive cells could be detected. The underlying protein matrix was well preserved and unaltered in thickness and appearance, compared with preimplantation samples. None of the specimens showed any evidence of infection. This human demonstration of an intact endothelium on a patent venous prosthesis further establishes in vitro lining as a method that actually creates a persistent and functioning endothelium on a synthetic graft surface.
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Affiliation(s)
- T Fischlein
- Department of Cardiovascular and Thoracic Surgery, General Hospital, Wels, Austria
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37
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Porter J, Vesely M, Jane S, Stebbing MA. Mesenteric venous thrombosis with protein S deficiency. Am J Gastroenterol 1993; 88:2143. [PMID: 8250001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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38
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Abrahamian H, Pecherstorfer M, Vesely M, Baumgartner G, Irsigler K. [Recurrent hypoglycemia and lactate acidosis in non-Hodgkin's lymphoma]. Dtsch Med Wochenschr 1991; 116:1428-32. [PMID: 1893854 DOI: 10.1055/s-2008-1063768] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Two weeks after partial resection of the small intestine for an intra-abdominal stenosing centroblastic non-Hodgkin lymphoma, a 65-year-old man began to experience recurrent attacks of hypoglycaemia (down to 30 mg/dl) together with lactic acidosis (lactate 5.13 mmol/l), tachycardia and sensations of heat. Very high parenteral glucose input (up to 750 g/day) was necessary to maintain normal blood sugar levels. There was close correlation between the level of glucose consumption and the degree of lactic acidosis. After chemotherapy the abnormalities improved, but recurred as the neoplasm proliferated once more. An endocrine mechanism for the hypoglycaemic attacks was excluded by the low serum concentrations of insulin and of "insulin-like growth factors" I and II and by the fact that the levels of glucagon, glucocorticoids, growth hormone and thyroid hormone were within the normal ranges. There were pleural and peritoneal effusions containing large numbers of tumour cells. Investigated in vitro, the fluids showed a decline in glucose and a rise in lactate concentration. Studies with an artificial pancreas also showed that glucose utilization rate in vivo was increased to four times the normal and that it could be raised still further by insulin stimulation. These findings provide evidence of direct consumption of glucose by the tumour cells in the form of abnormally increased anaerobic glycolysis.
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Affiliation(s)
- H Abrahamian
- III. Medizinische Abteilung, Krankenhaus Wien-Lainz
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39
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Abstract
In a 59-year-old man with multiple myeloma (kappa-light chain paraproteinaemia) in stage IIIB, bone marrow infiltration with atypical plasma cells was reduced by five cytostatic treatment courses with vincristine, melphalan, cyclophosphamide and prednisone (VMCP protocol), but anaemia requiring blood transfusion persisted (haemoglobin concentration 5.3 g/dl). Even administration of interferon alpha-2b (5 million units s.c. every other day) failed to alter this. Only a combination of interferon and erythropoietin (150 U/kg i.v. every other day) achieved lasting regression of the anaemia (haemoglobin concentration up to 14 g/dl). In four other anaemic patients with multiple myeloma, stage III, treated according to the VMCP protocol but without additional interferon, erythropoietin did not improve erythropoiesis.
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Affiliation(s)
- M Pecherstorfer
- 5. Medizinische Abteilung mit Onkologie, Krankenhaus Lainz der Stadt Wien
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40
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Chott A, Kaserer K, Augustin I, Vesely M, Heinz R, Oehlinger W, Hanak H, Radaszkiewicz T. Ki-1-positive large cell lymphoma. A clinicopathologic study of 41 cases. Am J Surg Pathol 1990; 14:439-48. [PMID: 2158242 DOI: 10.1097/00000478-199005000-00003] [Citation(s) in RCA: 187] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We report the clinicopathologic findings of 41 patients with Ki-1 (CD30)-positive large cell lymphoma. The median age was 50 years; 13 patients were under 40 years of age. Ten patients presented with extranodal disease. Fifty-five percent of the patients presented with stage I or II disease, and bone marrow involvement was histologically documented in 30% and occurred exclusively in patients over 40 years of age. Two cytomorphologically distinct groups of Ki-1--positive large cell lymphomas could be separated. Group A lymphomas consisted of pleomorphic large cells, sometimes with wreathlike and embryo-like nuclei, whereas group B lymphomas displayed a rather monomorphic appearance. Clinically the two groups of lymphomas differed with respect to stage of disease, frequency of bone marrow involvement, and median survival. On paraffin sections, the Ki-1--related antibody Ber-H2 provided excellent staining results in all cases. Immunologic phenotyping disclosed a T cell type in the majority of cases, revealed marked loss of differentiation antigens, and frequent expression of HLA-DR and IL-2 receptor. The overall median survival was 13 months. Age below 40 years, limited stage of disease (I and II), and, although not statistically significant, lymphoma morphology were associated with longer survival. We conclude, that Ki-1--positive large cell lymphomas represent a morphologically and immunologically heterogeneous category of hematolymphoid neoplasms derived from dedifferentiated and activated lymphoid cells with marked age-dependent prognosis.
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Affiliation(s)
- A Chott
- Department of Pathology, University of Vienna, Austria
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41
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Hütter R, Irsigler K, Vesely M, Ogris E. [Hypoglycemic and hyperinsulinemic clamp technic to determine the secretory behavior of insulinoma]. Dtsch Med Wochenschr 1988; 113:1146-8. [PMID: 2839328 DOI: 10.1055/s-2008-1067784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In two female patients of 62 and 76 years of age, respectively, who had insulinomas subsequently confirmed by histology, the secretion pattern of insulin-producing tumours was studied. In the 62-year old patient complete reproducible suppression of insulinoma secretion was achieved by means of large exogenous doses of insulin, whereas this was not possible in the 76-year old patient. A modified hypoglycaemic clamping technique was used in the study. It is concluded that, depending on plasma insulin levels, relative suppression of insulinoma is possible, and it is recommended to use the described differentiated clamping procedure to investigate the secretion pattern of autonomous insulin-producing tumours.
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Affiliation(s)
- R Hütter
- 3. Medizinische Abteilung mit Stoffwechselkrankheiten
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42
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Abstract
Three autopsy cases with discrete metastatic involvement of one or several extraocular orbital muscles by disseminated amelanotic melanoma (one case) and lobular mammary adenocarcinoma (two cases) associated with extensive meningeal involvement are reported. Clinical ocular symptoms including pain, exophthalamus, and diplopia occurred 6 months to almost 5 years after resection of the primary tumor; in two cases CT scan showed spindle-like enlargement of orbital muscles. Pathologic examination disclosed solid localized metastatic deposits in several extraocular muscles of one (breast carcinomas) or both orbits (melanoma), with diffuse invasion of striated muscle, but without necrosis, inflammation, or involvement of other orbital adnexa, eye ball, optic nerves, or orbital bone. Since no continuous invasion of orbital or intraocular structures by diffuse meningeal blastomatosis was histologically observed, rare metastatic involvement of extraocular muscles via hematogenic route is suggested.
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