PMC4218647_01
Chest x-ray revealed a voluminous opacity of the right upper pulmonary lobe
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The chest X-ray realised in our patient showed right upper lobe opacity (Figure 1) and the first diagnosis suspected, within his past history and endemic aspect of hydatid disease in our region was a hydatid cyst of the lung.
Histological analysis of the mass
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The patient was operated and we discovered tissular mass invading upper lobe with suspect parietal contact, we performed a complete resection of the mass with dorsal right upper lobe segmentectomy and resection of parietal pleural beside the tumour., The diagnosis of askin's tumor was established histological (Figure 2) on the presence of small cells with scant cytoplasm and focal necrosis, the cells were round and had scant cytoplasm with inconspicuous nucleoli.