Publications by authors named "Dorota Lewkowicz"

Low-grade appendiceal mucinous neoplasm (LAMN) is a tumor that primarily originates from the appendix and belongs to the family of appendiceal mucinous neoplasms (AMNs). In 50% of female patients, AMNs (particularly LAMNs) have a tendency to metastasize to organs in the genital tract, where the neoplasm can mimic the features of primary ovarian mucinous cancer (POMC). The present case report reviewed the difficulties in differentiating between these two types of tumors.

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Few studies have evaluated cytokeratin's (CK) staining patterns in atypical endometrial hyperplasia (AEH) coexisting with early-stage endometrial cancer (EC). We aimed to assess the staining patterns of selected CKs (CK7, CK19, CK20, CK AE1/AE3) in 74 patients with coexisting AEH and EC by independently analyzing both morphological variables. Specimens were collected from women with AEH and EC who underwent surgical interventions between 2012 and 2019 at the Department of Obstetrics and Gynecology of Vilnius University Hospital "Santaros Klinikos" in Vilnius, Lithuania.

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The incidence of two synchronous carcinomas originating from the uterine corpus and uterine cervix, both endometrioid subtypes, is exceedingly rare. Herein, we presented synchronous early stage G1 adenocarcinoma of the uterine corpus with cervical G2 endometrioid adenocarcinoma. Although both neoplasms displayed the same histological subtype, they differed significantly according to the histological grading or clinical stage of the disease.

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In the scientific literature, a selected number of reports have investigated the impact of proliferative activity on the development and progression of uterine carcinosarcomas (UC). The aim of the present retrospective study was to compare the immunohistochemical proliferation markers [Ki67, proliferating cell nuclear antigen (PCNA), minichromosome maintenance complex component 3 (MCM3), and topoisomerase IIα (topoIIα)] assessment in both components of UC. A total of 30 paraffin-embedded slides of UCs, obtained from patients who underwent surgery between January 1, 2006, and December 31, 2020, were analyzed.

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Cytokeratins (CKs) are the largest subgroup of intermediate filament proteins, preferentially expressed in epithelial tissues. CKs play a critical role in determining epithelial structural integrity under stressful conditions in addition to their various fundamental functions in cellular proliferation, apoptosis, migration, adherence and molecular signaling. Immunohistochemical CKs staining could be evaluated with a proper comprehension of their task limitations and their association with the normal morphology to avoid misdiagnosis.

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Leiomyoma is a benign tumor originate from mesenchymal or connective tissue. Because of a low incidence, difficulties in differentiation from other renal tumors with imaging modalities, the definitive diagnosis of a leiomyoma is possible after examination of a specimen. We present a case of 79-years-old women with incidentally discovered renal tumor in CT scan.

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Young girls before menarche or menstruating adolescent women may experience long-term drug-resistant chronic pelvic pain, as well as other symptoms associated with pelvic mass. In such cases, it is of great importance to consider ovarian endometrioma in the differential diagnosis. In general, endometrioma is recognized as an ovarian cyst.

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Introduction: The coexistence of chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) with different gynecologic neoplasms is a rare phenomenon. Here, we report a case of simultaneously developed CLL/SLL with endometrioid-type uterine cancer.

Case Report: A 58-year-old woman was admitted to the 2nd Department of Gynecology, Lublin Medical University, Lublin, Poland, in June 2017, where the uterine cancer was diagnosed.

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Background: The expression of p53 has been studied not only in primary human ovarian carcinomas, but also in borderline ovarian tumors, however, the results were discordant. Expression patterns of proteins involved in cell proliferation and apoptosis have been investigated in various human neoplasms, including female genital tract neoplasms.

Objective: The aim of this investigation was to assess the staining pattern and immunolocalization of p53 and selected proliferative markers (Ki-67, MCM3, PCNA, and topoisomerase IIα) in borderline ovarian tumors (BOTs).

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Adenoma malignum (AM), also referred to as "minimal deviation adenocarcinoma", is an extremely uncommon variant of highly-differentiated adenocarcinoma of the uterine cervix. The study presented herein describes a case of uterine AM found out after hysteroscopy. An early-stage, well-differentiated mucinous uterine adenocarcinoma was diagnosed post-operatively.

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Unlabelled: Glomus tumors, especially multiple ones, are uncommon skin and soft tissue neoplasms occasionally seen in various internal organs. Involvement of the external genital organs including penis is extremely rare, and until now, scarce cases have been reported in the available literature.

Materials And Methods: A routine histologic and immunohistochemical staining for pan-muscle actin, α-smooth muscle actin, desmin, CD31, and CD34 was applied for diagnosis of the lesions.

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Cyclooxygenase inhibitors (COX) are a complex group of pharmacological compounds characterized by significant efficacy in chemoprevention of epithelial origin tumors, especially colorectal ones. It was found that inducible isoform of COX - COX-2 plays an important role in cancer growth and dissemination, e.g.

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Routine examinations during chemotherapy containing anthracyclines evaluate heart function before treatment and monitor cardiotoxic effects during and after therapy. A number of methods are useful in cardiac assessment, including electrocardiography, radiology techniques (RTG, CT, MRI,PET-CT, PET-MRI), echocardiography, radioisotope imaging techniques (scintigraphy, MUGA,PET), and ultra-structure evaluation in biopsy samples. Nevertheless, there is a continuous need for new methods to predict future damage at the initial stages of cardiac changes.

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