. (1974). Thorax, 29,[138][139][140][141]. Pulmonary blastoma. A case report of a pulmonary blastoma is presented. A tumour was suspected at surgery and on histological examination this proved to be a pulmonary blastoma. A short review of the histogenesis and methods of treatment is given.Pulmonary blastoma is the least common of all tumours of the lung. This histological entity was first recognized in 1952. To date only 19 cases have been reported in the literature. There is considerable controversy regarding its histogenesis which has not yet been settled. The purpose of this communication is to present a case of pulmonary blastoma that we recently encountered.
CASE REPORTMrs. K., a 30-year-old woman, was admitted to hospital on account of pain in the posterior part of the right lower chest of 30 days' duration. The pain was episodic, radiating down the intercostal spaces and not aggravated by cough or respiratory excursions. She was afebrile and had no cough. There was no weight loss. Her physician had diagnosed a loculated effusion in the right chest from the radiograph. Two attempts at thoracentesis were made. It was reported that clear fluid was aspirated but this was not definitely documented. Before the onset of this illness she was in good health.At the time of admission her general condition was satisfactory. There was no clubbing. The trachea was central and there was no mediastinal shift. The percussion note was impaired and vocal fremitus and resonance were decreased markedly at the right base. The breath sounds were decreased on the posterior aspect of the lower part of the right hemiithorax. Other systems were normal. The white cell count was 8,500/mm3, with 72-0% neutrophils, 8-0% eosinophils, and 20-0% lymphocytes. The erythrocyte sedimentation rate was not raised. Casoni's test was negative. The chest radiograph (Fig. 1) showed a large, homogeneous, well-defined mass in the region of the right lower lobe. The (Fig. 3)