Hungarian Radiology

[Pulmonary abnormalities in haematological malignancies - The role of imaging in differential]

GYŐRI Gabriella, MAGYAR Péter, KOVÁCS Balázs, BÉRCZI Viktor, BALASSA Katalin, DEMETER Judit

OCTOBER 15, 2010

Hungarian Radiology - 2010;84(03)

[Patients with hematological malignancies may develop a wide range of pulmonary abnormalities due to the hematological disease itself as well as in response to therapy. Immunosuppression and intensive chemotherapy induced severe neutropenia hold a high risk of infection. Infectionrelated morbidity and mortality are still high. One of the most common infectious complications is invasive mycosis, which is lethal in a high percentage of cases if not treated immediately and adequately. Non-infectious complications, such as secondary pulmonary lymphoma, thromboembolism, hemorrhage or drug induced fibrosis may develop during the course of the disease. Sometimes it is difficult to make a definitive diagnosis. As invasive methods (bronchoscopy, bronchoalveolar lavage, biopsy) are mostly contraindicated in these patients with severe neutropenia and thrombocytopenia, imaging techniques are especially important. It is a great challenge to differentiate infectious and noninfectious processes. CT and HRCT play an essential role in differential diagnosis. An early and accurate diagnosis is sometimes the only chance for survival.]

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Hungarian Radiology

[Our future]

LOMBAY Béla

Hungarian Radiology

[Emergency imaging in pregnant women]

BORBÉLY Krisztina, KATHIA Chaumoître, FORRAI Gábor

[The use of adequate imaging protocol reduces morbidity and mortality in emergency cases of pregnant women. The least harmful, but sufficiently informative imaging method should be chosen that provides us with the diagnosis in the shortest delay. Although the reduction of harmful effects is important, life threatening complications can be avoided by an indicated and well effectuated imaging method using ionizing radiation.]

Hungarian Radiology

[Differential diagnosis of malignant cervical lymph nodes with real-time ultrasonographic elastography and Doppler ultrasonography]

ARDA Kemal, CILEDAG Nazan, GUMUSDAG Demir Pelin

[PURPOSE - Real-time ultrasonographic elastography is a new imaging technique which is used in characterizing the difference in hardness between pathologic and normal tissue. The purpose of our study was to evaluate the diagnostic performance of real-time ultrasonographic elastography and Doppler ultrasonography (DUS) individually and combined in differentiation of benign and malignant cervical lymph nodes (LN). PATIENTS AND METHODS - Fifty-one patients (12 men, 39 women) referred for fine-needle aspiration or surgical biopsies of suspected cervical lymph nodes were examined with gray scale ultrasonography, power DUS, and realtime ultrasonographic elastography. During DUS examination vascularity and resistance index (RI) values were evaluated. A five-group elastographic colour code pattern was used to evaluate the ultrasonographic elastograms for LN (pattern 1, an absent or a very small hard area; pattern 2, hard area <45%; pattern 3, hard area ≥45%; pattern 4, peripheral hard and central soft areas; pattern 5, hard area occupying entire solid component with or without soft rim). In addition, strains of LN and surrounding muscles were measured on elastograms, and the muscle-to-LN ratio (strain index) was calculated. Real-time ultrasonographic elastography and DUS results were compared with the final diagnosis obtained by fine-needle aspiration cytology analysis and/or by surgical pathology. The diagnostic potential of the examined criteria for malignancy was evaluated with univariate analysis and multivariate generalized estimating equation regression p≤0.05 indicated statistical significance. RESULTS - A strain index higher than 2.45 and colour pattern 4-5 had high utility in malignant LN classification with 93.8% sensitivity, 89.5% specificity (p<0.001). The results were significantly better than those obtained by using DUS characterization - that is, RI greater than 0.57 - which had 78.9% sensitivity (p<0.001). CONCLUSION - Real-time ultrasonographic elastography had 93.8% sensitivity and 89.5% specificity in the differentiation of benign and malignant cervical LN in patients referred for fine-needle aspiration or surgical biopsies with suspicion of malignancy. Real-time ultrasonographic elastography and DUS in addition to gray scale ultrasonography may improve the differential diagnosis of LN.]

Hungarian Radiology

[Interdisciplinary mummy research - Paleoradiology and paleopathology research of the Archbishop of Kalocsa Pál Széchényi’s mummy]

KRISTÓF Lilla Alida, POHÁRNOK László, KERÉNYI Tibor, TÓTH Vilmos, ISTÓK Roland, HARGITTAI Péter, FORNET Béla, PAP Ildikó, PÁLFI György

[Purpose - The scientific study of Pál Széchényi’s mummy was carried out by our research team composed of the members of several institutions in 2007 April. The scientific examinations represented a milestone, since up till now it was unclear whether it was a natural or artificial mummy and the century-old question whether Pál Széchényi was in fact a victim of arsenic poisoning in 1710 or it was only a legend could also be answered. Methods - The non-invasive examinations were carried out with multislice CT, traditional X-ray, biopsy, toxicology, energy-dispersive X-ray, X-ray fluorescens analysis, 3D optical digitalization indicator system, endoscope and 3D rapid-prototyping printing. Results - The examinations proved that Archbishop Pál Széchényi’s death was natural, and his body was artificially mummified. The CT examinations were carried out in a slice thickness of under 1 mm facilitating printed skull copy made by 3D rapid-prototyping method which provided the exact and detailed basis for the facial reconstruction.]

Hungarian Radiology

[Fournier’s gangrene]

MÁTÉKA Ilona, MORVAY Zita, PALKÓ András

[INTRODUCTION - Fournier’s gangrene is a rare, rapidly progressive specific form of necrotizing fasciitis that involves the soft tissues of the genital and perianal regions. The infection may spread from these regions along the abdominal wall or towards the lower limbs and has a very high mortality rate. History of the patient, the clinical features and the imaging techniques all together help to recognize the condition and to localize the affected area. CASE REPORT - We present the case of a thirty-year-old male patient, who had on admission a swollen left lower limb. Deep venous thrombosis was excluded by Doppler us. A few days later an other us examination revealed the fasciitis of the left thigh and the scrotum, originating from the deep gluteal bed-sore of the patient. A CT was performed to define the extent of the process and help the planning of the surgical intervention. The patient has recovered well after the operation. CONCLUSION - Due to the high mortality rate of Fournier’s gangrene it is essential to recognize this condition in time and to provide the appropriate surgical intervention or antibiotic therapy. Imaging modalities play a very important role in the diagnosis of Fournier’s gangrene.]

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[INTRODUCTION - Inactivated influenza and H1N1 vaccination is recommended yearly for patients with inflammatory bowel disease receiving immunosuppressive therapy; however, immunomodulator and biological therapy might impair the immune response to the vaccination. In our study, we assessed whether immunity can develop in response to H1N1 influenza vaccination in patients receiving immunomodulator and/or biological therapy. We also assessed the occurrence of side effects after the immunisation in these patients. PATIENTS AND METHODS - In our prospective study, blood samples were obtained from 24 patients (12 Crohn’sdisease, 12 ulcerative colitis) one month after immunisation against influenza A/California/ 07/2009 (H1N1) virus. At the time of vaccination, all patients have been receiving immunomodulator and/or biological therapy for at least three month. Antiviral antibodies were detected by using microneutralisation assay. The safety of the vaccination was assessed by questionnaires. RESULTS - Every patient developed complete immunity against influenza A (H1N1) virus, independently from the type of immunosuppressive therapy. Regarding side effects, local symptoms occurred in six patients and systemic symptoms in another six patients. Mild diarrhea occurred in five patients. Moderate exacerbation of the disease was observed in 2 patients with Crohn’s disease and in one patient with ulcerative colitis. CONCLUSIONS - According to our results, immunocompromised patients with IBD can be safely advised to receive the vaccination. In our study, all patients developed adequate immunity according to microneutralisation titers.]

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HARIS Ágnes, TISLÉR András, ONDRIK Zoltán, FILE Ibolya, MÁTYUS János, ZSARGÓ Eszter, DEÁK György, AMBRUS Csaba

[Launching the Hungarian Vasculitis Registry aimed to collect information about prevalence and outcome of our patients with ANCA-associated vasculitis, and treatment protocols of the disease. The on-line data collection has been developing dynamically since its initiation five years ago, presently 278 patients’ files are available. Patients’ mean age is 58.2±14.5 years, 62% are women; their disease is associated with c-ANCA positivity in 51% and p-ANCA in 49%. At diagnosis GFR was 24.6±21.6 ml/min/1,73 m2, that time 29%, during the total follow up 39% of the registered subjects needed dialysis. Renal replacement therapy could be discontinued in 23% of them. In cases with focal histological changes, also with upper respiratory tract and skin involvement dialysis was significantly less frequently necessary, which underlines the importance of early diagnosis. In induction therapy steroid was administered for 94% of the patients, 85% of them got cyclophosphamide, 59% was treated by plasmapheresis, 11% got rituximab. Maintenance treat ment contained steroid in 80%, per os cyclophosphamide in 23%, parenteral cyclophosphamide in 22%, furthermore 40% of the patients got azathioprin, 8 subjects got mycophenolate and 6 got methotrexate. Median follow up was 30 months (IQR 6-78), during which period 20% of the patients died, 5% got kidney transplantation, and 5% were lost to follow up. Median survival was 14.8 years, five years survival was 85%, and ten years survival was 70%. Long term survival in patients with c-ANCA vasculitis seemed better comparing to p-ANCA vasculitis, but when correcting by age this difference disappeared. Predictors of death were age and dialysis dependent renal failure. Relapses developed in 27% of patients, 28% of them presented in the first year, 21% suffered it after five years of care. Collected data by the Hungarian Vasculitis Registry shows our society’s successful professional activity. Our results are comparable to the published data in the literature, yet there are several areas in our care where further improvements are warranted in order to increase our patient’s survival and quality of life.]

Lege Artis Medicinae

[The role of measuring galactomannan in the modern therapy of invasive aspergillosis]

SINKÓ János

[Invasive aspergillosis is a life threatening mycosis prevalent in groups of patients with specific risk factors. To establish the diagnosis a specimen for histological examination has to be obtained. However, the vast majority of patients are not suitable for biopsy or this procedure can only be performed late in the course of the disease. Current diagnostic workup is based on high resolution thoracic CT scans and serum galactomannan antigen testing. Antigen detection can either be used for screening to detect early phase infection or to prove the full-blown disease. Here clinical aspects of galactomannan antigen testing and its role in current management of aspergillosis are reviewed.]

Hypertension and nephrology

[Current diagnosis and treatment of membranous nephropathy]

STUDINGER Péter, CSEPREKÁL Orsolya, FINTHA Attila, KARDOS Magdolna, TISLÉR András

[Primary membranous nephropathy is a common glomerular disorder characterized by subepithelial immune deposits. The pathomechanism underlying these lesions has only recently been elucidated: M-type phospholipase A2receptor (PLA2R) protein emerged as being the leading autoantigen. Antibodies to PLA2R, typically of IgG4 subclass are expressed in 70-80% of patients with primary membranous nephropathy. The level of autoantibody to PLA2R was shown to correlate with disease severity and to change parallel with disease activity in response to therapy. While mild forms of the disease are prone to spontaneous remission and carry excellent prognosis, severe forms often progress into end-stage renal disease without treatment and necessitate immunosuppression. The latest guidelines recommend the application of corticosteroids with alkylating agents or calcineurin inhibitors as first-line therapy. Promising new therapies that are currently being explored for this disease include rituximab, mycophenolate mofetil, and adrenocorticotropic hormone.]

Hypertension and nephrology

[Systemic ANCA-associated vasculitis. Induction immunosuppression therapy, complications and outcome. Part 1]

HARIS Ágnes, POLNER Kálmán

[The present review is compiled of two parts, the first part aims to summarize the induction immunosuppressive therapy, the second part delineates the outcome and complications of ANCA-associated vasculitis. ANCA-associated vasculitis is a systemic disease, accompanied with rapidly progressive glomerulonephritis and severe, often life-threatening extrarenal complications. By early diagnosis and immediate initiation of immunosuppressive therapy, both patient and renal outcome have been substantially improved. The major aims of modern therapeutic protocols are, besides improving survival, to decrease immunosuppressive drug toxicity and avoid infections. Immunosuppression is based on the combination of large dose of corticosteroid and cyclophosphamide, which is advisable to supplement by plasma exchange. The B-cell depleting anti-CD20 monoclonal antibody rituximab, which has already been available in Hungary, has been proved to be similarly effective in newly diagnosed ANCA-vasculitis, and even more effective in a relapsing disease, compared to cyclophosphamide. Amongst rituximab’s further indications in this disease is the preservation of young women’s fertility, and it also has priority in some other special cases. Early diagnosis and prompt immunosuppressive treatment have resulted that ANCAvasculitis became a treatable disease with reasonably good clinical outcome, yet both the disease and the immunosuppressive medications frequently cause complications, which necessitate continuous alertness of the attending nephrologists.]