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© Author(s).Objective: Vitamin D deficiency is a common health problem around the world. This study aimed to evaluate the nationwide prevalence of vitamin D status in tertiary care hospitals in Turkey. Methods: Retrospectively, the data on vitamin D levels from 33 tertiary care hospitals’ clinical biochemistry laboratories around Turkey between January and December were collected. Results: In total, 706 434 serum samples from adult subjects (female/male: 469 028/237 406; 66.4%/33.6%) were included. While vitamin D levels were sufficient in 20.3% (n = 14 222), they were insufficient in 21.9% (n = 154 360) and deficient in 57.8% (n = 408 882). We observed the highest rates of deficiency in those aged between 18 and 29 years (62.9%, n = 70 235) and lowest rates between 60 and 69 years (52.3%, n = 61 121) and between 70 and 79 years (52.3%, n = 32 397). Hypervitaminosis D was detected in 5.5% of adult subjects; highest rates of hypervitaminosis D were observed in those who were over 80 years (6.6%) and 70-79 years (6.5%) and the lowest in 18-29 years (2.8%). Discussion: In this cohort, over half of the subjects admitted to the tertiary care hospitals in Turkey had vitamin D deficiency and required vitamin D supplementation. The elderly population had the lowest prevalence of vitamin D insufficiency and the highest prevalence of hypervitaminosis D.

Kronik lenfositik tiroidit veya Hashimoto tiroiditi (HT) iyot eksikliğinin olmadığı bölgelerde guatr ve edinilmiş hipotiroidinin en sık nedeni olan, patogenezinde otoimmünite, genetik yatkınlık ve çevresel faktörlerin rol oynadığı inflamatuvar bir tiroid hastalığıdır. HT'de boyunda nadiren subakut granulamatöz tiroiditi (SAT) taklit eder şekilde ağrı ve hassasiyet olabilir. SAT genellikle kendi kendini sınırlayan bir durum olmasına rağmen semptomların şiddetli olduğu olgular streroid kullanımını gerektirebilir. SAT'da steroid kullanımı ile birlikte semptomlar kısa sürede azalır. Steroid tedavisi kesildikten sonra daha yüksek dozlarda tekrarlarlayan steroid tedavisi bazı olgularda nadiren gerekebilir. Ağrılı HT'de SAT'ın aksine, medikal tedaviye cevap ya geçicidir ya da yoktur ve/veya tekrarlayan relapslar görülür. Ağrılı HT olgularında medikal tedaviye yanıt alınamadığı durumlarda tiroidektomi bir seçenek olabilir Bu yazımızda, klinik ve laboratuvar özellikler nedeniyle ilk olarak SAT tanısıyla takip ettiğimiz, ancak daha sonra medikal tedaviye yanıtsızlık nedeniyle ağrılı HT olabileceğini düşündüğümüz ve cerrahi önerdiğimiz, patoloji sonucu HT ve mikropapiller tiroid karsinomu ile uyumlu olan nadir bir olguyu sunmayı amaçladık Chronic lymphocytic thyroiditis, or Hashimoto’s thyroiditis (HT) is an inflammatory thyroid disease which is the most common cause of goiter and acquired hypothyroidism in iodine sufficient areas that autoimmunity, genetic predisposition and environmental factors play role in pathogenesis. Thyroid pain and tenderness may rarely be present in HT mimicking subacute granulamatous thyroiditis (SAT). Although SAT is a selflimiting condition, cases with severe symptoms may necessitate use of steroids. Symptoms reduce in a short time with use of steroids in SAT. Higher and repeated doses of steroids may be rarely necessary in some cases after stopping steroids. In contrary to SAT, patients with painful HT have only temporary or no response to medical treatment and/or show repeated relapses. Thyroidectomy may be an option in painful HT cases that do not response to treatment