Diagnostic value of using multiplanar reformation images: Case report for rare endotracheal hamartomas

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Abstract

Rationale:

Pulmonary hamartomas are the most common benign tumor of the lung. Two types of pathologically similar hamartomas exist based on their location. These tumors have a low incidence, are rarely reported and frequently misdiagnosed because of lack of familiarity and/or understanding concerning their imaging features.

Patient concerns:

Seventeen patients received treatment between June 2007 and May 2013 and had complete medical records. All of them had different degrees of cough and expectoration. Other symptoms include fever (5 cases), hemoptysis (4 cases), chest pain (3 cases), shortness of breath (2 cases), and dyspnea (1 case).

Diagnoses:

These patients all have pathologically confirmed, and informed the diagnosis of endobronchial hamartoma.

Interventions:

Unenhanced and enhanced CT scans were performed using Toshiba Aquilion 64-slice and GE Lightspeed 64-slice CT scanners. The scan was performed from the superior thoracic aperture to the lateral costophrenic angle. The transaxial CT data was inserted into a Volume Wizard workstation to reconstruct images using MPR technique.

Outcomes:

The relationship between the location of the tumor and bronchi was clearly displayed on the axial images in only 2 patients. In all 17 patients, reconstructed MPR images were able to display the tumor parallel to the long axis of bronchi, thus facilitating in tumor identification and positioning along the bronchial tree.

Lessons:

MPR images are valuable tools in the diagnosis of endobronchial hamartomas. Chiefly, these reconstructions aid in the detection of intratumoral fat/calcification and clearly demonstrate the tumors relationship and effect with the adjacent bronchi.

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