Elif GÜNDOĞDU

ELASTOFIBROMA DORSI: PREVALENCE AND IMAGING FEATURES ON MULTI DETECTOR COMPUTED TOMOGRAPHY

ABSTRACT Objective: The aim of this study was to determine the prevalence and radiological characteristics of elastofibroma dorsi detected incidentally by thoracic multidetector computed tomography (MDCT).Material and Methods: 1674 thoracic CT examinations were evaluated. CT examinations were performed using 16-slices CT scanner. In patients with detected mass(es) the dimensions and marginal and internal radiological characteristics, whether the mass was unilateral or bilateral and consequently the affected site in unilateral cases were recorded. The enhancement patterns of the lesions were evaluated in the studies with contrast agent administration. Results: Elastofibroma dorsi was detected in 88 (5,3%) of 1649 patients. Statistically the detection rate for the entity was significantly higher in female patients (p<0.001). The mean age of the patients without elastofibroma dorsi was significantly lower than the mean age of the patients with entity (p<0.001). The frequency of bilateral elastofibroma dorsi was found to be significantly higher than that of unilateral disease (p=0.002). No significant difference was detected between the frequencies of right- and left-sided elastofibroma dorsi (p=0.046). Out of 19 lesions detected, 12 (63,2%) did not show any contrast enhancement, whereas 5 (26,3%) had mild and 2 (10,5%) had moderate degree of contrast enhancement . Conclusion: The detection rate of incidental lesions has considerably increased in parallel with the improvements in imaging technology. MDCT enables identifying the typical imaging features of elastofibroma dorsi which might preclude the need for the use of advanced imaging tools, tissue sampling and histopathological analysis for making a proper differential diagnosis.Keywords: Prevalence, elastofibroma dorsi, multi detector computed tomography. ÖZETAmaç: Bu çalışmanın amacı, toraks multidetektör bilgisayarlı tomografi (MDBT) görüntüleme ile rastlantısal olarak saptanan elastofibroma dorsi’nin prevalansının ve görüntüleme özelliklerinin belirlenmesiydi.Gereç ve Yöntemler : 1674 toraks BT incelemesi değerlendirildi. BT incelemeleri 16 kesitli BT tarayıcısı kullamılarak yapıldı. Kitle saptanan hastalarda kitlenin boyutları, kenar ve iç yapıların radyolojik özellikleri, kitlenin tek taraflı veya çift taraflı olma durumu ve tek taraflı kitlelerde tutulum görülen bölge kaydedildi. Kontrast madde uygulaması yapılan tetkiklerde kontrastlanma paterni değerlendirildi. İstatistiksel analiz SPSS 20.0 yazılımı kullanılarak yapıldı.Bulgular : 1649 hastanın 88'inde (% 5,3) elastofibroma dorsi tespit edildi. Kitle tespit oranı kadın hastalarda istatistiksel olarak belirgin şekilde daha yüksekti (p <0.001). Elastofibroma dorsi bulunmayan hastaların ortalama yaşı, kitle bulunan hastaların ortalama yaşından anlamlı derecede düşüktü (p <0.001). İki taraflı elastofibroma dorsi görülme sıklığı tek taraflı hastalığa göre anlamlı derecede yüksek bulundu (p = 0.002). Sağ ve sol taraflı elastofibroma dorsi sıklığı arasında anlamlı fark tespit edilmedi (p = 0.046). Genel olarak, 12 kitle (% 63,2) kontrast tutulumu göstermezken, 5 (% 26,3) lezyonda hafif ve 2 (% 10,5) lezyonda orta derecede kontrast tutulumu saptandı.Sonuç: Görüntüleme teknolojisindeki gelişmelere paralel olarak rastlantısal lezyonların saptanma oranı belirgin şekilde artmıştır. MDBT elastofibroma dorsi’nin tipik görüntüleme özelliklerinin belirlenmesini sağlayarak ayırıcı tanının doğru şekilde yapabilmesi amacıyla ileri görüntüleme araçlarının, doku örneklemesinin ve histopatolojik analizin kullanılmasına yönelik ihtiyacı ortadan kaldırabilecektir. Anahtar Sözcükler: Prevelans, elastofibroma dorsi, multi dedektör bilgisayarlı tomografi.

Anahtar Kelimeler:

Prevalence, elastofibroma dorsi, multi detector computed tomography

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