ECTOPIC BRONCHOGENIC CYST
Bronchogenic cysts are solitary asymptomatic mediastinal masses which may present at any age1. They are genreally benign, congenital due to bronchopulmonary foregut malformation which can present as a mediastinal mass that tends to enlarge causing local compression2. Retroperitoneal localized bronchogenic cysts, as first reported by Miller et al in 1953, are very rare3.They are mostly located in the mediastinum or lung parenchyma and is result from separation of an aberrant bud from the tracheobronchial tree between the 26th and 40th days of intrauterine life4. After the occurance of complete separation of the primitive foregut , a cyst generally migrate to an atypical location, such as the skin or parasternal subcutaneous tissue, pericardium, abdominal cavity, or diaphragm. Symptoms are frequently nonspecific, although epigastric pain is the most common clinical presentation8.The exact etiology is still unknown. More common in males and Yemeni Jews.
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Mei-Ching Huang1 Liang-Kuang Chen1,4,5 Tai-Nein Lu1 Thomas I. et al. A Rare Case of Retroperitoneal Bronchogenic Cyst: a case report, Chin J Radiol 2008; 33: 109-113.
Kim Govaerts, Peter Van Eyken, Geert Verswijvel et al. A bronchogenic cyst, presenting as a retroperitoneal cystic mass, PMC, Rare Tumors 2012; volume 4:e13 page 37-43.
Dal Mo Yang, MD, Dong Hae Jung, MD, Hana Kim, MD et al. Retroperitoneal cystic masses: CT, Clinical, and Pathologic findings and Literature review, Radiographics, Sept. 2004, Vol. 24, Issue 5.
Hoang C, Aubriot MH, Totobenazara JL, et al: Isolated retroperitoneal intradiaphragmatic bronchogenic cyst: a case report. Clin Exp Pathol 1999;47:67–70.
H. Page McAdams, MD, Wanda M. Kirejczyk, MD2 et al. Bronchogenic Cyst: Imaging Features with clinical and histopathological correlation, Thoracic Imaging, Nov 2000, Vol. 217, 441-446.
Siegelman ES, Birnbaum BA, Rosato EF. Bronchogenic cyst appearing as a retroperitoneal mass. AJR Am J Roentgenol 1998; 171:527-528. CrossRef, Medline.
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