Pulmonary puzzle
ANSWER
From the question on page 980
The patient underwent a thoracotomy with wedge resection of the right upper lobe of the lung and pathological examination of a specimen showed the presence of malignancy. Lobectomy of the right upper lobe was performed. Microscopic examination revealed sarcomatous tumour cells with dyscohesive pleomorphic nuclei and prominent infiltration (fig 1A). Upon immunochemical analysis the tumour cells were positive for cytokeratin and vimentin (fig 1B and C). The tumour …
