Bronchocele: Demonstration By 3D Volume Rendering Imaging with Multidetector Computed Tomography: Case Report

Abstract

251ongenital bronchial atresia (CBA) is a rare congenital abnormality of the lung first described by Falor and Kyriakides in 1949. 1 It results from a congenital focal obliteration of a proximal segmental/subsegmental bronchus with normal development of distal structures. Because of proximal bronchial stenosis, the distal bronchi fill with mucus and form a bronchocele.2 Computed tomography (CT) has been advocated as a valuable noninvasive modality in the diagnosis of CBA and bronchocele.2-4 The multidetector computed tomography (MDCT) is consideredas a dramatic Bronchocele: Demonstration By 3D Volume Rendering Imaging with Multidetector Computed Tomography:Case Report A AB BS ST TR RA AC CT T Congenital bronchial atresia (CBA) is a rare congenital abnormality of the lung. It results from a congenital focal obliteration of a proximal segmental or sub-segmental bronchus with normal development of distal structures. Because of proksimal bronchial stenosis, the distal bronchi became filled with mucus and form a bronchocele. Three dimensional (3D) volume rendering (VR) imaging was performed with 64-slice multidetector computed tomography (MDCT) equipment in a patient with CBA and bronchocele. 3D VR images clearly revealed branching nonenhancing tubular structure and the adjacent lung with features of air trapping. A diagnosis of bronchocele was made radiologically. We report a case of bronchocele documented by 3D image reconstruction and VR images using 64-slice MDCT. In this article we report that, the radiologic findings of the broncocele can be shown more clearly with 3D VR technique than standart CT imaging.K Ke ey y W Wo or rd ds s: : Lung; bronchi; tomography, spiral computed Ö ÖZ ZE ET T Konjenital bronş atrezisi (KBA) nadir görülen bir akciğer anomalisidir. Proksimal segmental veya subsegmental bronkusun konjenital tıkanıklığı ve distal yapıların normal gelişmesi sonucu oluşur. Tıkanıklık distalinde bronş içerisinin mukus ile dolması sonucunda bronkosel gelişir. KBA ve bronkosel bulunan bir hastaya 64 dedektörlü çok kesitli bilgisayarlı tomografi (ÇKBT) cihazı ile üç boyutlu hacim görüntülemesi (3D VR) yapıldı. Bu üç boyutlu hacim görüntüleri çok net bir şek-ilde bronkosele ait tubuler yapıları, kontrast maddeye gerek kalmadan dalları ile birlikte çevresin-deki akciğerin hava hapsi alanlarını da gösterdi. Bronkosel tanısı radyolojik olarak konuldu. Bu makalede 64 dedektörlü ÇKBT cihazı ile üç boyutlu hacim görüntüleri elde edilen bir bronkosel olgusunu sunuyoruz. Bu makalede, bronkoselin radyolojik bulguları 3D VR yöntemiyle, standart BT incelemesinden çok daha net bir şekilde gösterilebildiği bildirilmiştir.A An na ah ht ta ar r K Ke el li im me el le er r: : Akciğer; bronş; tomografi, spiral bilgisayarlı T Tu ur rk ki iy ye e K Kl li in ni ik kl le er ri i J J M Me ed d S Sc ci i 2 20 01 11 1; ;3 31 1( (1 1) ): :2 25 51 1--5 5

Bronchocele: Two Cases

“…CBA is the most common reason of bronchocele and. It is a cystic formation caused by mucus impaction and dilatation at the proximal of obstructed or atresic bronchiol [2][3][4]. Congenital atresia, scatricial shrinkage of bronchial lumen, a foreign object or neoplasms may cause the obstruction.…”

“…So it is granted as a non invasive method in patients who can not tolerate bronchoscopy or refuse to have it done [3,4]. According to all of these evaluations bronchocele related to bronchial atresia was diagnosed radiologically.…”

“…Volume rendering may be internally or externally performed and it gives important information about the trachea-bronchial tree as detailed as bronchoscopy [1,3].…”