Janevska, Vesna

Preferred name

Janevska, Vesna

Official Name

Janevska, Vesna

Main Affiliation

vesna.janevska@medf.ukim.edu.mk

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Synchronous occurrence of ileal stromal tumor (GIST) and colonic adenocarcinoma: a case report.
(2015)
Trajkovska, Elizabeta
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Introduction: Gastrointestinal stromal tumors (GIST) are the most common mesenchymal tumors of the digestive tract. There is an increasing number of literature reports on synchronous occurrence of gastrointestinal stromal tumors and another malignancy of distinct etiology and evolution. The most reported cases include gastric synchronous occurrence of gastrointestinal stromal tumors and adenocarcinoma and gastric gastrointestinal stromal tumors and colonic adenocarcinoma. Case report: We present a case of a 77-old female, with synchronous cecal moderately differentiated adenocarcinoma in Stage IIA according to the TNM classification and ileal spindle cell type GIST with low malignant potential, positive for c-Kit, CD34, vimentin, Actin, and negative for S100. Conclusion: The synchronous occurrence of small bowel gastrointestinal stromal tumors and other primary gastrointestinal malignancies has been rarely reported. There is a need of further investigations to identify the relationship between gastrointestinal stromal tumors and colorectal cancers.
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Percutaneous Imaging-Guided versus Open Musculoskeletal Biopsy: Concepts and Controversies
(Georg Thieme Verlag KG, 2020-12)
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Ivanoski, Slavcho
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Bone and soft tissue tumors are a largely heterogeneous group of tumors. Biopsy of musculoskeletal (MSK) tumors is sometimes a challenging procedure. Although the open biopsy is still considered the gold standard for the biopsy of MSK lesions, core needle biopsy can replace it in most cases, with similar accuracy and a low complication rate. The biopsy should be performed in a tertiary sarcoma center where the multidisciplinary team consists of at minimum a tumor surgeon, an MSK pathologist, and an MSK radiologist who can assess all steps of the procedure. Several factors can influence the success of the biopsy including the lesion characteristics, the equipment, and the method used for the procedure. This review highlights some of the important aspects regarding the biopsy of the MSK tumors, with special attention to imaging a guided core needle biopsy and highlighting some of the recent advancements and controversies in the field.
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Tertiary Lymphoid Structures in Colorectal Cancers and Their Prognostic Value
(ID Design 2012/DOOEL Skopje, 2018-10-25)
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Karadzov, Zoran
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Hadzi-Manchev, Dragan
Tumor-infiltrating lymphocytes (TIL) in tumour stroma are considered to be involved in the elimination of malignant cells and prevention of metastasis formation. TIL consist of T lymphocytes including cytotoxic lymphocytes that are a constituent part of the effector mechanism of anti-tumour immunity and B lymphocytes that can form tertiary lymphoid structures (TLS). TLS has been described in several solid tumours and colorectal carcinoma (CRC), and the influence on the local and systemic anti-cancer response.
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Standardization and optimization of fluorescence in situ hybridization (FISH) for HER-2 assessment in breast cancer: A single center experience
(Association of Basic Medical Sciences of FBIH, 2018-05-20)
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<jats:p>Accurate assessment of human epidermal growth factor receptor 2 (HER-2) is crucial in selecting patients for targeted therapy. Commonly used methods for HER-2 testing are immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH). Here we presented the implementation, optimization and standardization of two FISH protocols using breast cancer samples and assessed the impact of pre-analytical and analytical factors on HER-2 testing. Formalin fixed paraffin embedded (FFPE) tissue samples from 70 breast cancer patients were tested for HER-2 using PathVysion™ HER-2 DNA Probe Kit and two different paraffin pretreatment kits, Vysis/Abbott Paraffin Pretreatment Reagent Kit (40 samples) and DAKO Histology FISH Accessory Kit (30 samples). The concordance between FISH and IHC results was determined. Pre-analytical and analytical factors (i.e., fixation, baking, digestion, and post-hybridization washing) affected the efficiency and quality of hybridization. The overall hybridization success in our study was 98.6% (69/70); the failure rate was 1.4%. The DAKO pretreatment kit was more time-efficient and resulted in more uniform signals that were easier to interpret, compared to the Vysis/Abbott kit. The overall concordance between IHC and FISH was 84.06%, kappa coefficient 0.5976 (p < 0.0001). The greatest discordance (82%) between IHC and FISH was observed in IHC 2+ group. A standardized FISH protocol for HER-2 assessment, with high hybridization efficiency, is necessary due to variability in tissue processing and individual tissue characteristics. Differences in the pre-analytical and analytical steps can affect the hybridization quality and efficiency. The use of DAKO pretreatment kit is time-saving and cost-effective.</jats:p>
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Compared With Radical Nephrectomy, Nephron-sparing Partial Nephrectomy Protects Apolipoprotein E-deficient Mice From Atherosclerosis Progression
(Elsevier BV, 2015-05)
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Davceva, Olivera
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To compare the effect of radical with partial unilateral nephrectomy on the development of atherosclerosis in the apolipoprotein E (apoE(-/-))-deficient mouse model.
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S153 Partial nephrectomy may protect from future cardiovascular disease-first experimental evidence
(Elsevier BV, 2013-10)
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Davceva, O.
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Novel Ret Mutations in Macedonian Patients with Medullary Thyroid Carcinoma: Genotype-Phenotype Correlations
(Walter de Gruyter GmbH / MANU, 2015-05-01)
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Bogoeva, Biljana
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Medullary thyroid carcinomas (MTCs) are rare neoplasms comprising 2-10% of all thyroid malignnancies. More than 75% are sporadic tumors and the remainder is familial and MEN2 related. Both sporadic and syndromic MTCs frequently show mutations in the RET proto-oncogene. It has been noted that some MTC cases present an indolent, and some an aggressive clinical course. Ki-67 expression is generally low, with documented exceptions, whereas high expression of Bcl-2 has been reported in majority of the cases. Some studies have shown that Ki-67 and Bcl-2 expressions have prognostic value, as well as RET mutational status. We analyzed 20 unrelated MTC cases for Ki-67, Bcl-2 expression and RET mutations and tested their intercorrelations, correlations to the morphologic features and stage of the tumors, as well as their influence on survival. In 13 of the 20 analyzed cases we found 23 sequence changes distributed in exons 8, 10-13 and 16. There were 11 different missense mutations, single nucleotide deletion with frameshift, and 8 different synonymous mutations. Only 4 of the sequence changes have been previously published. Twelve patients (60%) had tumors expressing one or more missense mutations or single nucleotide deletion and 7 of them (35%) had at least one damaging or possibly damaging RET mutation. Most of the tumors had low Ki-67 expression (mean 6.48% of cells) and high Bcl-2 expression (mean 68.3%). Significantly better survival was observed in cases with low Ki-67 (< 6.5%; p < 0.05), high Bcl-2 expression (> 68.3%; p < 0.01) and younger age at diagnosis (< 51 years; p < 0.05).
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TP53 Mutation in Correlation to Immunohistochemical Expression of P53 Protein in Patients with Hepatocellular Carcinoma
(ID Design 2012/DOOEL Skopje, 2018-07-20)
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Chalovska-Ivanova, Viktorija
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BACKGROUND: Mutations causing p53 inactivation are among the most common genetic alterations in human malignant tumours including hepatocellular carcinoma. Detection of p53 gene mutations in patients with hepatocellular carcinoma (HCC) should provide relevant data for the patients from the Republic of Macedonia and should allow the survivals additional therapeutic option as is gene therapy. AIM: We aimed to detect p53 gene mutations in HCC tissue, and to correlate them with the immunoexpression of p53 protein and multiple clinicopathologic characteristics of a tumour. MATERIAL AND METHODS: We analysed thirty patients with HCC for multiple clinic-pathological characteristics. Tumour tissue samples were immunostained for p53 and detection of p53 gene mutations was performed by polymerase chain reaction followed by Sanger sequencing. RESULTS: Changes in p53 gene sequence were detected in four patients (13.33%), one of them a polymorphism and the other three were missense point mutations with p53 immunoexpression of 50%, 0%, 0% and 90%, respectively. All patients with p53 mutations had cirrhosis. Two of them had Hepatitis B infection, moderately differentiated tumour and T2 status. There was one case with a well-differentiated tumour and one with T4 status. All of them were with vascular invasion. The size of the tumours was in the range of 2.5 cm to 16 cm. All 3 mutations were located in exon 7. CONCLUSION: Mutations in p53 gene are not always associated with obviously altered immunoexpression of p53 protein. Detection of p53 gene mutations is necessary in each case because the new therapeutic modalities offer to apply gene therapy.
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Testicular adrenal rest tumors in boys with 21-hydroxylase deficiency, timely diagnosis and follow-up
(2018-04)
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Testicular adrenal rest tumors (TARTs) are found in 30-94% of adult males with congenital adrenal hyperplasia (CAH). We sought to explore TART appearance through yearly ultrasound examination of testes in young boys with CAH, and its association with metabolic control and genetic mutations.
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Hepatocellular carcinoma - clinicopathological characteristics, survival, and expression of various histologic molecular markers
(Termedia Sp. z.o.o., 2019)
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Ivanova, Viktorija
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Dimitrova, Magdalena
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The aim of this study was to make a clinical characterisation of patients with hepatocellular carcinoma and to investigate the expression of a set of molecular markers in patients from the Republic of North Macedonia. We analysed 60 patients for clinicopathologic factors, and we investigated tumour tissue and surrounding liver tissue for immunoexpression of E-cadherin, β-catenin, cyclin D1, and p53. Infection with hepatitis virus B and C (p < 0.001), tumour dimension (p < 0.001), vascular invasion (p < 0.002), and tumour differentiation (p < 0.021) significantly influenced the survival of the patients. E-cadherin and β-catenin expression reduction and cyclin D1 and p53 overexpression were significantly higher in the tumour than in the non-tumour tissue (p < 0.001; p < 0.001; p = 0.001; p < 0.001, respectively). No significant correlation was found between clinicopathological characteristics and the analysed molecules nor between the molecules themselves. The immunoexpression of E-cadherin, β-catenin, cyclin D1, and p53 was not related to the tumour aggressiveness and prognosis. However, their significantly higher expression in HCC tissue compared to that in non-tumour tissue indicate their important role in hepatocarcinogenesis. The clinicopathological characteristics of the neoplasm remain highly predictive factors for the survival of the patients.

Janevska, Vesna

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