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RISS 인기검색어
- 검색키워드
- 저자 : Sawaf, Zeinab (검색결과 2 건)
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Histopathological Patterns of Thyroid Disease in Al-Madinah Region of Saudi Arabia
Albasri, Abdulkader,Sawaf, Zeinab,Hussainy, Akbar Shah,Alhujaily, Ahmed Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.14
Objectives: This study aimed to characterize the histopathological pattern of thyroid lesions among Saudi patients and to highlight the age and gender variations of these lesions as base line data. Materials and Methods: We retrospectively analyzed the data from thyroid specimens received at the Department of Pathology, King Fahad Hospital, Madinah, Saudi Arabia from January 2006 to December 2013. Results: The 292 thyroidectomy specimens received during the study period came from 230 (78.8%) females and 62 (21.2%) males giving a female: male ratio of 3.7:1. Age of the patients ranged from 14 to 95 years with a mean age 39.7 years. Two hundred and eleven (72.3%) cases were found to be non-neoplastic and 81 (27.7%) cases were neoplastic. The non-neoplastic group included: colloid goiter, including both diffuse and nodular goiter (170 cases; 58.2%), nodular hyperplasia (28 cases; 9.6%), Hashimoto/chronic lymphocytic thyroiditis (12 cases; 4.1%), and Grave's disease (1 case; 0.3%). In neoplastic lesions, there were 7 benign tumors and 74 malignant tumors. Among the benign tumors, 5 were follicular adenomas and 2 were Hurthle cell adenomas. Papillary carcinoma was the commonest malignant tumor accounting for 87.8% of all thyroid malignancies, followed by lymphoma, follicular carcinoma and medullary carcinoma. The size of papillary carcinoma was more than 2 cm in 40 cases (76.9%). Conclusions: Non-neoplastic thyroid lesions were more common than neoplastic ones. Colloid goiter was the most common lesion. Follicular adenoma was the commonest benign tumor and papillary carcinoma was the commonest malignant lesion. There appears to be a slightly increased trend of papillary carcinoma diagnosis, most being diagnosed at an advanced stage.
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Faruq Khadami,Kiyosi Kawanis,Mohamad Basel Al Sawaf,Gillang Noor Nugrahaning Gusti,Cong Xiao 한국해양과학기술원 2022 Ocean science journal Vol.57 No.1
Tidal river management requires consideration of the influence of both tides and freshwater on hydrodynamic patterns. Most previous studies have focused on large and high discharge estuaries, whereas tide and river runoff interactions in small, shallow, and low discharge estuaries have received limited attention. Understanding these interactions remains a challenge due to the impacts of disturbances and changes in processes, which may differ from those of large estuaries. In this study, we investigated the influences of tides and river runoff on circulation and mixing processes in a small estuary with an area of less than 50 km2 and a discharge range of 20–130 m3. In this study, we applied mixing evaluation and wavelet analysis to the salinity, temperature, density, and three records of acoustic Doppler current profilers that were placed along a tidal floodway (the Ota River diversion channel, Japan). Our findings revealed that mixing was controlled by neap–spring tidal oscillation, with high discharges significantly influencing mixing during the neap tide. Moreover, the results of the wavelet transform indicated that during the spring, tidal straining increased and induced intense mixing, while during the neap, river discharge had a greater influence on circulation. The interactions between tides and river runoff influence the appearance of a convergence zone and estuarine turbidity maxima that are located approximately 4.8 km from the river mouth.
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