BACKGROUND Hydatid cyst, or Echinococcosis, is an important helminthic zoonotic disease in humans that commonly affects the liver and lungs. Uncomplicated hydatid cysts, seen as round opaque lesions on chest radiography, are easily diagnosed, whereas complicated cysts (infected and or perforated) may change the radiographic appearance of the hydatid cyst, causing an incorrect diagnosis and dela...

Pathologic dilatation of the maxillary sinus by air is a rare condition with unclear etiology. We present a case of a 17 year old male with a maxillary air cyst diagnosed by computed tomography. The CT demonstrated air-filled expansion of the maxillary sinus beyond the normal anatomical limits with associated cortical bone thinning. The case report highlights the pathognomonic computed tomograp...

A 54 year old man, an ex-smoker, was noted to have a right hilar mass five years before presentation at our hospital. Thoracotomy had shown a cystic mass (benign lymphangiomatous cyst on frozen section) enveloping the structures of the right hilum. Resection was not attempted because a pneumonectomy would have been required. A radiograph four years later showed no change. One month before admis...

Neurenteric cyst in the thoracic cavity may produce a myriad of clinical features. We report a 7-month-old girl who presented with significant bleeding per rectum. On imaging, a mediastinal cystic structure with air-fluid levels was evident with cervico-thoracic vertebral anomalies. The cyst was excised and histopathology showed intestinal mucosal lining with heterotopic pancreatic tissue confi...

Cervical esophageal duplication cysts are uncommon congenital malformations, and those with air-fluid level are rarely reported. We describe here a case of cervicothoracic esophageal duplication cyst manifesting air-fluid level on Computed Tomography (CT) in a 6-month-old girl. The preoperative diagnosis was suspected as esophageal duplication or abscess. The postoperative pathological diagnosi...

OBJECTIVE Primary cysts constitute 25% of all masses in the mediastinum. Because radiological investigations are often inconclusive, many adults require mediastinoscopy, thoracotomy, video-assisted thoracic surgery, or computed tomography-guided transbronchial, transesophageal, or transcutaneous aspiration to confirm the cystic nature of these lesions. Minimally invasive procedures fail when th...