Presentation
Presented for removal of several dermal masses. Screening thoracic radiographs.
Patient Data
There is a solitary soft tissue opacity mass in the left cranial lung lobe, contacting the thoracic wall. The remainder of the lungs are normal.
The collimated oblique view shows no rib involvement.
The liver is enlarged and rounded. The stomach is empty, and the pylorus is rounded.
Primary lung tumor. Differential diagnoses include adenocarcinoma and carcinoma, with histiocytic sarcoma less likely.
Case Discussion
Lung lobectomy - bronchoalveolar carcinoma on histopathology.
Adenocarcinomas are most common, followed by carcinoma. The tumors are subclassified depending on location (alveolar, bronchoalveolar, bronchial).
An oblique and/or a projection that has a different centerpoint can clarify relationships of a lesion to surrounding structures, or increase its visibility.
The empty pylorus can give a false impression of an abdominal mass. The position and absence of a food or gas-containing pylorus can help to rule out a mass.
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