Browsing by Author "Erinanc, Hilal"

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Coexistence of Lymphoepithelial Carcinoma of the Parotid Gland and Submandibular Gland Pleomorphic Adenoma
(2017) Topal, Ozgul; Erinanc, Hilal; https://orcid.org/0000-0001-6305-5023; https://orcid.org/0000-0003-1401-6356; 28570397; ABI-6777-2020; AAL-1268-2021
Lymphoepithelial carcinoma is a variant of undifferentiated carcinoma with characteristic dense lymphoid stroma in which nasopharynx is site of predilection. Racial and geographic association and Epstein-Barr virus positivity in endemic areas are other characteristics of this rare neoplasm. Lymphoepithelial carcinoma accounts for only 0.4% of malignant salivary gland tumors. The authors present a patient with Epstein-Barr virus positive lymphoepithelial carcinoma of the parotid gland in a nonendemic region. Besides this, synchronous pleomorphic adenoma in the contralateral submandibular gland caused a challenge in making initial therapeutic decision.
Coexistence of Papillary Microcarcinoma and Hurthle Cell Adenoma: A Case of Thyroid Collision Tumor
(2022) Tasci, Halil Ibrahim; Erinanc, Hilal; Turk, Emin; Karagulle, Erdal; 0000-0003-2269-4798; AAJ-2989-2021
While thyroid cancers are usually present one type of cancer in the thyroid gland, rarely different thyroid cancers may found in one or two different lobes of the thyroid gland at the same time. A 70-years-old female patient presented with a long-standing neck swelling, especially on the left side, which was more prominent, recently increasing in size and causing shortness of breath. Due to tracheal compression and diagnosis of multi-nodular goiter, total thyroidectomy was performed. Histopathological examination revealed a thyroid collision tumor with papillary microcarcinoma on the right and hurtle cell adenoma on the left side. Due to its rarity, clinicians encountered difficulties in the diagnosis and treatment of thyroid collision tumors. We believe that to be aware of these rare entities by encouraging clinicians to report such cases enable to more solid conclusions to diagnosis and management of collision tumors.
Correlation of Histological Diagnosis and Laboratory Findings in Distinguishing Acute Appendicitis and Lymphoid Hyperplasia
(2022) Karabulut, Keziban Ucar; Erinanc, Hilal; Yonar, Aynur; Kisinma, Alpaslan; Ucar, Yildiz; 0000-0003-1681-9398; 0000-0001-9188-0266; 36452309; S-3177-2018; AAJ-5618-2021
Purpose: Acute appendicitis (AA) is one of the most frequent causes of abdominal surgery encountered in emergency rooms. However, reactive lymphoid hyperplasia (RLH) is one of the appendicular pathologies often misdiagnosed. It is quite challenging to distinguish between AA and RLH in terms of planning treatment in an emergency. Therefore, this retrospective study aimed to compare the histological and laboratory findings of AA and RLH. Methods: The retrospective data included in the study were obtained from patients diagnosed with AA. Complete blood count (CBC) and C-reactive protein (CRP) levels of patients with AA and RLH were compared before the surgery based on the histological diagnosis of the patients. Results: A total of 187 patients who previously underwent appendectomy were included in the study. Histopathological examination revealed that 152 patients (81.3%) were diagnosed with AA, and 35 (18.7%) with RLH. While white blood cell count (P < 0.001), neutrophil (P < 0.001), and neutrophil/lymphocyte ratio (P < 0.001) were found to be significantly higher in those with AA; lymphocyte (P = 0.003) and eosinophil counts (P = 0.033) were detected to be significantly higher in those with RLH. CRP level was also significantly higher in those with AA (P = 0.002) Conclusion: We consider that CBC and CRP levels may be predictive in distinguishing between AA and RLH. We consider that these parameters may be valuable in making a distinction between patients before surgery.
A Different Approach for Usage of the Implant Materials: The Composite Graft Prefabrication
(2016) Deniz, Lutfi Murat; Ataman, Murat Gorkem; Borman, Huseyin; Erinanc, Hilal; https://orcid.org/0000-0003-1401-6356; 27763981; AAL-1268-2021
With all implanted materials, a certain sequence of biological events occurs following the implantation. This process is destructive to the implant and peri-implant tissues. The aforementioned sequence of biological events may be responsible for the complications. In this study, the natural biologic process following implantation was completed in an area other than the final implantation area. The aim was to keep the peri-implant tissues in the final implantation area away from the process. In the control group, the porous polyethylene discs were implanted to subcutaneous area on the frontal bone of the rats. A month after the implantation, macroscopic and microscopic examinations were performed. In the study group, the discs were implanted primarily above the rectus abdominis muscle of the rats. It was named as the composite graft prefabrication. Twenty-one days after the first implantation, the discs were removed from the rectus muscle and implanted to subcutaneous area on the frontal bone of the rats. A month after the final implantation, macroscopic and microscopic examinations were performed. In macroscopic examination, all possible complications were evaluated. In microscopic examination, apoptosis, fibrosis, inflammation, and fibrovascular in-growing were evaluated. In the control group, implant exposure was observed in 3 of the rats. In the study group, no complications were observed. Although there was no statistical difference between 2 groups in the microscopic findings, at first glance, the inflammation seemed to be the factor responsible for the complication in the control group. According to the macroscopic results, the composite graft prefabrication seemed to be effective in preventing complications.
Gastric Polyps: A Retrospective Analysis of Endoscopic Biopsies: A Single Center Study in Central Anatolia
(2019) Erinanc, Hilal; Unler, Gulhan Kanat; Gokturk, Huseyin Savas; Ozgur, Gulsum Teke
Objective: Gastric polyps accounts for %6 of gastrointestinal endoscopy. Geographical differences occur in the prevalence of them. We aimed to determine the spectrum of gastric polyps. Matherial and method: Data including demographics, medical history and histological characteristics of polyps and Helicobacter pylori were obtained retrospectively. Results: Of the 24568 endoscopies performed, 184 patients were identified as having gastric polyps. The most frequently encountered were hyperplastic polyps (62%), followed by fundic gland polyps (19,3%) and adenomatous polyps (3, 8%). The corpus (36,4 %) was the most common site and the antrum (25%) was the second. Female patients were more affected than male patients (64,7%). Majority of the polyps (88%) were smaller than 1 cm in diameter. The mean age was 62,10+13,4 (range:30-90) years. Fundic gland polyps were observed at younger age (mean age: 56,58) compared to other gastric polyps. Intestinal metaplasia was more frequently encountered in hyperplastic polyps than in fundic gland polyps. Conclusion: In this study, hyperplastic polyps are the most common in our population however there was no association between the hyperplastic polyps and H. pylori infection. H. pylori infection ratio was similar in both hyperplastic polyps and fundic gland polyps however all of the patient have chronic gastritis. This findings suggest chronic gastritis also play role in hyperplastic polyps development. The study also showed that H. Pylori infection is still common in our country and further studies need to find efficacy of H.pylori treatment.
Increased Expression of Nestin and VEGF in Endometrial Polyps: An Immunhistochemical Study
(2016) Erinanc, Hilal; Toprak, Erzat; 0000-0003-1401-6356; 0000-0002-2877-1232; AAL-1268-2021; ABI-5902-2020; GRR-9885-2022
Background: Pathogenesis of endometrial polyps have not been fully understood however the increased proliferation of blood vessells and fibrosis may play an important role in the pathogenesis of endometrial polyps. Vascular endothelial growth factor (VEGF) is a a key regulator of angiogenesis and vascular function. Nestin is another molecule which has been reported to be associated with the process of angiogenesis. The aim of this study was to evaluate the expression of Nestin protein and VEGF in pathogenesis of endometrial polyps. Methods: A total of 20 women who had hysteroscopic and histologic confirmation of benign endometrial polyps and their normal endometrial tissue were recruited into the study. Immunohistochemical analysis for VEGF, Nestin and CD34 were performed on formalin fixed, paraffin-embedded tissue using the streptavidin-biotin-peroxidase technique. Angiogenesis was assessed by immunohistochemistry using monoclonal antibody against CD34. Results: Immunostaining of VEGF in glandular epithelial cells and stromal fibroblasts, and immunostaining of Nestin in newly formed vessels were determined. Immunopositivity staining of VEGF in endometrial polyps were significantly stronger than normal endometrium (P<0.05). Nestin expression was observed in vessels which were smaller than that of CD34-positive preexisting large blood vessels. Endometrial polyps demonstrated significantly greater expression of Nestin in proliferating endothelial cells, compared with control endometrium (P<0.05). Conclusion: This study suggests that the increased expression of VEGF and Nestin protein which are may have a role in the pathogenesis of endometrial polyps.
Intravesical BCG Immunotherapy: Sepsis and Multiorgan Failure Developed After Traumatic Catheterization
(2014) Cicek, Tufan; Togan, Turhan; Erinanc, Hilal; Ugur, Murat; Gonulalan, Umut; Cifci, Egemen; 0000-0003-1401-6356; AAL-1268-2021
Intravesical Bacillus Calmette-Guerin (BCG) instillation is a prophylactic therapy using for treating bladder cancer to prevent tumour progression and recurrence. Both local and systemic complications can arise after the installation. Although local complications are common, this therapy is generally well tolerated. Systemic complications are rarely than local complications but can be fatal. We report a case who died from severe complications such as sepsis, pneumonia, renal failure and granulomatous hepatitis after receiving the first maintanence installation of intravesical BCG immunotherapy for bladder transitional cell carcinoma.
MRI Findings of Lumbosacral Metastasis from Occult Follicular Thyroid Cancer: Report of A Case
(2014) Coban, Gokcen; Yildirim, Erkan; Gemici, Kazim; Erinanc, Hilal; https://orcid.org/0000-0002-9057-722X; https://orcid.org/0000-0003-1401-6356; 23129029; P-7533-2014; ABI-3856-2020; AAL-1268-2021
A 63-year-old female was admitted to our hospital with bowel and bladder incontinence. Magnetic resonance imaging (MRI) showed a 13 x 12 x 12 cm mass invading the posterior regions of the L4, L5, S1 and S2 vertebrae with broad paravertebral soft tissue invasion. A Tru-cut biopsy of the mass was performed. The histopathological examination revealed metastatic follicular carcinoma of the thyroid. Thyroid functional tests were within the normal limits. Thyroid sonography revealed a heterogeneous, ill-defined, 14 x 9 mm hypoechoic solid nodule in the right lobe of the thyroid gland. On thyroid scintigraphy, an area of focal hyperactivity was detected in the right lobe at the nodule localization. Total thyroidectomy was performed, and the primary tumor pathology was determined to be follicular thyroid cancer. To our knowledge, only a few cases of lumbosacral cord compression as the initial manifestation of follicular thyroid carcinoma have been reported in the literature. We aimed to discuss the MRI findings of tumors in this age group with lumbosacral localization.
Predictive values of vascular endothelial growth factor and microvessel-density levels in initial biopsy for prostate cancer
(2016) Kervancioglu, Enis; Kosan, Murat; Erinanc, Hilal; Gonulalan, Umut; Oguzulgen, Ahmet Ibrahim; Coskun, Esra Zeynep; Ozkardes, Hakan; 26944325
Angiogenesis is an important factor in the development and progression of prostate cancer (PCA). We aimed to investigate the values of vascular-endothelial-growth-factor (VEGF) expression level and microvessel density (MVD) in the prediction of PCA diagnosis at repeated prostate biopsy (re-PBx). We retrospectively evaluated 167 patients with re-PBx according to elevated prostate-specific antigen levels, suspicious digital rectal examination, and the presence of premalignant lesions. Patients with PCA on re-PBx were included in the cancer group (n = 17). Patients with benign prostatic hyperplasia or normal tissues on re-PBx were included in the control group (n = 21). The groups were compared according to the expression level of VEGF and MVD in initial prostate biopsy. There was no statistically significant difference between groups according to age and serum prostate-specific-antigen values. The mean VEGF scores of the cancer and control groups were 232.64 +/- 11.14 and 183.09 +/- 14.56, respectively (p < 0.05). The mean MVD of the biopsy samples in the cancer and control groups were 246.47 +/- 17.59 n/mm(2) and 197.33 +/- 16.26 n/mm(2), respectively (p < 0.05). The cutoff values of VEGF scores and MVD were set as 200 and 215, respectively, for PCA detection in our study. Our results showed that the expression level of VEGF and MVD significantly increased in the initial prostate-biopsy samples of patients with PCA diagnosed with re-PBx. The evaluation of VEGF expression level and MVD might have an important value in the prediction of PCA at re-PBx. The expression level of VEGF and MVD should be kept in mind as PCA-related histopathological changes that indicate the increased angiogenesis in prostatic tissue. Copyright (C) 2015, Kaohsiung Medical University. Published by Elsevier Taiwan LLC.
Prostatic Melanosis: A Case Report
(2014) Cicek, Tufan; Erinanc, Hilal; Gonulalan, Umut; Sen, Erhan; Ozturk, Bulent; 0000-0003-1944-1722; 0000-0003-1401-6356; AAJ-8576-2021; AAL-1268-2021
Prostatic melanosis is characterized by melanocytic proliferation in prostatic stroma and the epithelium. The pathogenesis of the lesion is uncertain. In literature it has been reported as a case associated with prostatic adenocarcinoma before. Primary and metastatic malignant melanoma should be considered in differantial diagnosis of the lesion.
The Rare Benign Lesion That Mimics a Malignant Tumor in Breast Parenchyma: Nodular Fasciitis of the Breast
(2018) Erinanc, Hilal; Turk, Emin; 0000-0003-1401-6356; 0000-0003-4766-3373; 29854526; AAL-1268-2021; AAJ-5609-2021
We herein report the clinical and pathological findings of a rare case of nodular fasciitis in the breast parenchyma of a 48-year-old female. Because of potentially malignant findings on ultrasonography and during clinical examination, the patient underwent an excisional biopsy. Histologically, the lesion was composed of spindle to round shaped cells arranged in short bundles in a storiform pattern. Immunohistochemically, the cells were positive for vimentin and SMA and negative for desmin, S100, and CD34. Based on these morphological and immunohistochemical features, a diagnosis of nodular fasciitis was made. We emphasize that nodular fasciitis of the breast may showclinical features and imaging findings similar to those of breast cancer. The histopathologic diagnosis of nodular fasciitis can also be challenging. The purpose of this case report is to highlight the characteristics and the differential diagnosis of this rare neoplasm.
Recurrence of Primary Vascular Leiomyosarcoma Five Years after Initial Diagnosis in the Lower Extremity
(2018) Erinanc, Hilal; Ozulku, Mehmet; Terzi, Aysen; 0000-0003-1401-6356; 0000-0002-1225-1320; 29971175; AAL-1268-2021; F-7546-2013
Primary leiomyosarcomas of vascular origin are rare tumors. They frequently arise within the inferior vena cava; however, the peripheral vein was also affected. To date, only a few hundred cases have been reported in the world literature. Although it is an extremely aggressive tumor, the symptoms may be unspecific, especially in the lower extremities. In this report, we present a case of primary vascular leiomyosarcoma, arising from the short saphenous vein, with symptoms mimicking thrombus in the initial diagnosis. The diagnosis of leiomyosarcomas was confirmed by standard H&E staining and immunohistochemical staining. Recurrence of the tumor has been observed five years after surgical treatment. Due to its rarity, experience in the management of this type of tumor is limited. The mainstay of treatment for these tumors is complete surgical resection. The purpose of the presented case is to discuss the clinicopathological features and management options of this tumor, under the light of the most recent literatures.