Browsing by Author "Ugraş, S."

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Adenocarcinoma of the Larynx: a Case Report With Histochemical and Immunohistochemical Studies
(2004) Bayram, I.; Ugraş, S.; Kiriş, M.; Reçber, D.
Adenocarcinomas constitute a histologically diverse group of rare laryngeal neoplasms accounting in aggregate for less than 1% of all laryngeal carcinomas. Adenocarcinoma of the larynx "not otherwise specified" (NOS) is a very uncommon neoplasia, but it shows a high degree of malignancy. We report a case of adenocarcinoma "NOS" arising in the larynx of a 60-year-old man. Histologically, the tumor tissue was composed of only adenocarcinoma component. Histochemically, the adenocarcinoma cells demonstrated Alcian blue pH: 2.5 and PAS reactivity, but did not include argentaffin and argyrophil granules. Immunohistochemical studies revealed negative reactivity for desmin, HMB45 and NSE. S-100 and chromogranin was focally positive, cytokeratin was diffusely positive.
The Association of Short Segment Barrett's Esophagus With Intestinal Metaplasia in Stomach
(2003) Tuncer, I.; Ugraş, S.; Uygan, I.; Türkdoǧan, K.; Kösem, M.
Background/aims: The aims of this study were to investigate the presence of short segment Barrett's esophagus in people found to have tongue-like columnar mucosal protrusions in the distal esophagus and to determine the relationship between short segment Barrert's esophagus and Helicobacter pylori, gastritis and intestinal metaplasia observed in other parts of the stomach. Methods: The study included 50 patients (32 male, 18 female). Two biopsy specimens were taken from the antrum, at least 2 cm away from the pylorus, from the incisura angularis, corpus and cardia and four biopsy specimens were taken from tongue-like columnar protrusions (<3 cm long) above the gastroesophageal junction. Tissue samples were stained with hematoxyline-eosine, HID-Alcian blue pH 2.5 and modified Giemsa. Results: Of the 50 subjects who were found to have tongue-like columnar protrusions above the gastroesophageal junction, short segment Barrett's esophagus was detected in nine (18%). Whereas all short segment Barretti's esophagus cases were associated with chronic gastritis, Helicobacter pylori was found to be positive in five (55.5%) of them and there was intestinal metaplasia in other parts of the stomach (antrum in two patients, incisura angularis in three, antrum and cardia in one) in six (66.6%) cases. In 41 patients without short segment Barrett's esophagus 33 (80%) had chronic gastritis, 27 (66%) had Helicobacter pylori infection and eight had intestinal metaplasia in different locations (there in antrum, four in incisura angularis, one in the antrum and cardia) of the stomach. Conclusions: An association between short segment Barrett's esophagus and intestinal metaplasia was found in different parts of the stomach. The link between intestinal metaplasia in the stomach and these metaplastic changes in the tubular esophagus requires evalation in larger and more comprehensive studies.
Differences in Clinical and Histopathologic Features Between Chronic Adenotonsillitis and Chronic Adenotonsillar Hypertrophy
(2003) Kutluhan, A.; Ugraş, S.; Kiriş, M.; Cankaya, H.; Kiroglu, A.F.; Yurttaş, V.
OBJECTIVES: This study sought to determine the clinical and histopathological differences between chronic adenotonsillitis and chronic adenotonsillar hypertrophy. PATIENTS AND METHODS: This prospective study included 286 patients (147 males, 139 females; mean age 16.6 years; range 3 to 45 years) with chronic adenotonsillitis and 197 patients (98 males, 99 females; mean age 9.5 years; range 2 to 18 years) with adenotonsillar hypertrophy. Clinical and histopathological findings were compared. RESULTS: The mean age was significantly higher (p<0.001) and acute attacks of fever, dysphagia, and sore throat were more frequent in chronic adenotonsillitis. Patients with adenotonsillar hypertrophy more commonly manifested snoring, mouth breathing, and dispnea. Physical examination showed hyperemia of the anterior plica in 93% and 15% in chronic adenotonsillitis and adenotonsillar hypertrophy, respectively. Histopathologically, the former was more commonly associated with severe lymphocyte infiltration to surface epithelium, surface epithelial defects, plasma cells, atrophy, and fibrosis. The sole outweighing difference in favor of chronic adenotonsillar hypertrophy was increased germinal centers. CONCLUSION: Clinical and histopathologic findings suggest that chronic adenotonsillitis and chronic adenotonsillar hypertrophy may be diverse diseases requiring different approaches in treatment.
Endodermal Sinus (Yolk Sac) Tumor of Oral Cavity Originating From Gingiva
(1998) Kutluhan, A.; Ugraş, S.; Akman, E.
Endodermal sinus tumor is a malignant germ cell tumor which usually arises in gonads. Extragonadal endodermal sinus tumors in the head and neck are very rare. Here a gingival endodermal sinus tumor is reported. The lesion demonstrated typical microscopic features of the endodermal sinus tumors of gonads. The tumor cells showed α-fetoprotein immunoreactivity in immunohistochemical evaluation. The serum α-fetoprotein level was high. This is the first gingival case in the related literature.
Fibromatosis of the Mandible in a Child
(2002) Kutluhan, A.; Kiroglu, A.F.; Ugraş, S.
Fibromatosis represents a group of fibrous tumors showing clinic and biologic features between benign fibrous lesions and fibrosarcoma. These locally aggressive tumors have high recurrence rates (20% to 70%). A four-year-old boy presented with mandibular fibromatosis occupying the mandible completely and extending to the submandibular gland and soft tissues. Complete hemimandibulectomy and submandibular gland excision were performed followed by reconstruction with a curved Kirschner wire. No signs of recurrence was observed during a follow-up period of 18 months. In addition, no limitations in the functions of the jaw, mastication, and swallowing were noted.