Browsing by Author "Stojšić, Jelena (23006624300)"

Introduction. An inflammatory myofibroblastic tumor (IMT) is a rare mesenchymal tumor of unclear etiology, which demonstrates myofibroblastic differentiation accompanied by inflammatory cells. IMT is a frequent primary lung tumor in children and is of nonspecific symptomatology and imaging methods. Its definitive diagnosis requires histopathology and immunohistochemistry of the tissue sample obtained after a rigid bronchoscopy or after complete surgical resection. Case report. A 16-year-old male patient was admitted to our clinic for further treatment of IMT verified by rigid bronchoscopy. He had previously been treated at another institution for left-sided pneumothorax with thoracic drainage. Since it had not resulted in lung reexpansion, a chest computed tomography was performed followed by rigid bronchoscopy that eventually established IMT diagnosis in the distal part of the left main bronchus. Since the tumor surrounded the left lobar carina and infiltrated the pulmonary artery, pneumonectomy was undertaken. Its morphology and immunoprofile determined the IMT diagnosis. Four years after surgical resection, the patient showed no recidivism of the illness. Conclusion. IMT is one of the most frequent primary lung tumors in children and needs to always be suspected upon. Pneumothorax can appear as an IMT manifestation. Its occurrence could be the consequence of either a visceral pleura lesion in case of peripheral tumors or a ball valve mechanism in case of endobronchial tumors. Definitive diagnosis of IMT requires not only histopathology but also immunohistochemical analysis. Complete surgical resection results in the best survival rates. Further monitoring of patients is necessary due to the risk of recurrence. © 2021 Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.

Background/Aim. Thymoma is the most common mediastinal tumor. The treatment procedures are based on the results from the research of retrospective studies because they are not frequent tumors. The aim of this work was to define common clinical features, therapeutic aspects, survival and recurrence free survival. Methods. This study was performed in the Clinic for Pulmonology, Clinical Centre of Serbia, Belgrade from January 1993 to December 2013. We analyzed 62 patients with histopathologically proven thymoma. The results were obtaind from medical history, physical exam, chest X-ray and/or computed tomography and operational findings or diagnostic procedure reports. Thymomas were clasiffied according to the World Health Organization classifying system, based on histopathological findings, and staged according to the Masaoka-Koga staging system. Results. There were more female (54.8%) patients. Patients were mostly in the seventh decade of life. One third (29%) of the patients were asymptomatic. Cough was the dominant symptom. Myasthenia gravis was the most common paraneoplastic syndrome (12.9%). Solitary tumor was the most common in our patients (61.3%), as well as the tumors larger than 5 cm (52.5%), and noninvasive thymomas (52.5%). The majority of patients (40%) were in the stage I of the disease. The operative approach was conducted in most of the patients (88.7%). A statistically significant difference in survival was in women, patients with solitary tumor, non-invasive thymomas, patients in the stage I of the disease, and those who were operated. The dimension of the tumor mass approached the conventional level of significance. Conclusion. In patients with thymomas, statistically significant survival rate predictors are gender, presence of solitary tumor mass, tumor invasiveness, clinical stage and surgical treatment of the disease. © 2020 Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.

[No abstract available]

[No abstract available]

Introduction Lung cancer is the leading cause of death from malignancy in Serbia. Objective This is a retrospective analysis of lung cancer epidemiological changes regarding to its histological type and patients' age of both genders. Data were based on surgically treated lung cancer patients from 1985 to 2005. Methods Data were collected from 972 pathohistological reports of operated patients of both genders divided into age groups. Histological types of lung cancer were distributed in four major groups: squamous cell cancer (SCC), adenocarcinoma (AC), small cell cancer (SCLC) and other rare histological types. Both genders together and separately were analysed. Chi-square with the level of significance p<0.05 and chi-square test for trends were used as statistical methods. Results SCC predominated in both genders; in 44.7% females and 68.0% males. AC was less frequently diagnosed (21.8%) than SCC (64.0%) in both genders and all age groups. The most frequently operated patients were aged between 51 and 60 years (36.6%) with SCC and AC predominance. Three patients with SCLC were operated in 61-70 age-group. In age-group up to 30 years, three (0.5%) patients were operated on for SCC and other rare lung tumours, respectively. Predominance of other rare lung tumours was established in 51-60 age-group, 25% of patients of both genders. Conclusion SCC is the most frequent histological type of lung cancer found in all age groups and in both genders of surgically treated patients.

The aim of the study was to assess the expression and significance of HER2 and HER3, and Ile/Val single nucleotide polymorphism (SNP) of HER2 in lung cancer patients. Thirty seven cases of lung cancer were investigated immunohistochemically for HER2 and HER3 expression. PCR followed by restriction fragment length polymorphism (RFLP) was used to analyze the presence of HER-2 SNP at codon 655 in 20 samples. The results were compared with clinical and pathological parameters of investigated patients. We found that 100 % of the cases were negative for HER2, 29.7 % were with moderate or strong HER3 expression and 70.3 % of the tumors—without or with low expression for HER3. Lymph node metastasis were found in 40 % of HER3 positive cases (χ2 = 4.752; p = 0.029). Moderately-differentiated tumors do not express neither of investigated markers (χ2 = 6.719; p = 0.035). HER2 RFLP—PCR analysis showed genotype AG in five patients (25 %) and the rest of 15 cases (75 %) had АА (Ile/Ile) genotype. Patients with metastasis had genotype АА (Ile/Ile) in 80 % and genotype AG (Ile/Val) in 20 % (χ2 = 2.857; p = 0.091). Our results indicate that SNP in HER2 codon 655 and investigation of HER2 and HER3 expression could be helpful to outline the prognosis for patients with lung adenocarcinoma. © 2015, Springer-Verlag Wien.

Pulmonary artery intimal sarcoma (PAS) is a rare mesenchymal tumor mostly diagnosed in middle-aged women. In a 63-year-old female, the radiological findings showed cavitation in the left upper lobe of the lung and infiltrative tumor mass around the left pulmonary artery. PAS consisted of small, round tumor cells with about 80% of mitotic activity and with myxoid background and specific immunoprofile and diagnosed as undifferentiated sarcoma with round cell features type. The final diagnosis of PAS was established according to the pathohistological, chest computed tomography scan, and surgery finding. © 2018 Journal of Research in Medical Sciences | Published by Wolters Kluwer - Medknow.

Introduction. Inflammatory myofibroblastic tumor (IMT) is a rare neoplasm. This disease, of unknown etiology, runs an unpredictable course. Its definitive diagnosis calls for a detailed histopathological analysis including immunohistochemistry. Microscopically, IMT is composed of myofibroblastic spindle and inflammatory cells in different proportions. It presents infrequently in adults with nonspecific symptomatology. The presence of IMT is described in every anatomical region but the tracheal one is especially uncommon. Case report. A 41year-old female patient checked into our institution due to exacerbation of asthma-like symptoms such as shortness of breath, cough and exertion intolerance. She was originally treated as the asthmatic patient with the bronchodilator therapy with no success. Chest x-ray done during one of the outpatient follow-up appointments pointed to a suspected change in the tracheal distal part. After her admission to our institution, the following diagnostic procedures were performed: Spirometry, chest computed tomography (CT) scan, chest magnetic resonance imaging (MRI) and bronchoscopy and the change in tracheal distal third was confirmed. Right-sided thoracotomy with mobilization of lung, tracheal resection and termino-terminal (T-T) anastomosis was undertaken. Subsequent histopathological analysis of surgically removed afflicted tracheal part of them trachea including immunohistochemistry enabled us to definitively of diagnose IMT. Four years after surgical resection, the patient showed no recidivism of illness. Conclusion. Definitive IMT diagnosis requires the detailed diagnostic tests, most importantly, an adequate histopathological analysis including immunohistochemistry. Complete surgical resection is the treatment of choice in case of IMT. Further monitoring of patients is necessary due to a risk of recurrence. © 2019, Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.