What is the cause of this synchronous palpable abdominal mass in a woman recently diagnosed with lung cancer as demonstrated in Figure 1?

Colonic metastases from lung cancer are rare [1, 2]. Presentation of an abdominal mass in the setting of a new lung cancer diagnosis should prompt complete evaluation including endoscopic and CT imaging. This case also highlights the need for immunohistochemical analysis of unusual tumor deposits facilitating appropriate treatment.

Use of 3-dimensional computed tomography reconstruction studies in the preoperative assessment of patients undergoing balloon dilatation for tracheobronchial stenosis.

Background: Balloon dilatation (BD) is a useful method of treating tracheobronchial stenosis (TBS); however, accurate preoperative identification of the lesion is difficult. Three-dimensional computed tomography (3D-CT) is an imaging method that may allow more accurate definition of the lesion(s) preoperatively.

Study Objective: It is the aim of this study to present our finding using 3D-CT as a part of the preoperative evaluation of patients with TBS undergoing BD.

Ultrathin bronchoscopy as an adjunct to standard bronchoscopy in the diagnosis of peripheral lung lesions. A preliminary report.

Background: The role of the standard bronchoscope as a method of diagnosis of peripheral lung lesions is limited.

Objectives: To evaluate the role of the ultrathin bronchoscope as an adjunct to standard bronchoscopy in the diagnosis of peripheral lung lesions.

Methods: Seventeen consecutive patients with a peripheral lung lesion on chest radiography or chest CT.