PMC3658232_01
A) Magnetic resonance image of the undetermined retroperitoneal left subdiaphragmatic mass (2.36 x 8.53 cm, arrow). B) Axial postcontrast arterial-phase computed tomographic image of undetermined retroperitoneal left subdiaphragmatic mass (2.36 x 8.53 cm, arrows) with small calcifications inside.
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Magnetic resonance imaging (MRI) and computed tomography (CT) of the abdomen showed a heterointensive 2.36 x 8.53 cm aberrant enhancing mass in the projection of the left diaphragmatic peduncle ( Figures 1A, 1B).
A) Histology specimen consisting of bronchioles (1) lined by ciliated columnar epithelium and alveoli (2). B) Histology specimen consisting of a bronchiole (1) lined by ciliated columnar epithelium.
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The tumor consisted of bronchioles lined by ciliated columnar epithelium and alveoli (Figures 2A, 2B).
Magnetic resonance image of left retroperitoneal subdiaphragmatic region with mass residue (arrow).
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Three months later, a follow-up MRI revealed the residue of the retroperitoneal mass (Figure 3).