Primary sarcomas of the chest are rare. Although primitive neuroectodermal tumor (PNET) usually develops in the chest wall, it has been described as a primary pulmonary tumor. We present an unusual case of PNET arising in the lung of an 89-year-old man.
Case SynopsisAn 89-year-old man, non-smoker and well-controlled diabetic, was referred to our department because of the appearance of a mass on the scalp exhibiting progressive growth for two months. Cutaneous examination showed a large and fungating mass on the head, which had an unpleasant aroma (Figure 1). The family had noticed a gradual decline in the patient's function in recent months. Three days after presentation, he went to the emergency department because of hemoptysis and epigastric pain. Figure 1. Fungating scalp tumor A biopsy of the skin confirmed the diagnosis of metastatic type neuroectodermal tumor, which was enolase and CD99 positive, synaptophysin and chromogranin negative (Figures 2,3).
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