A solitary lung mass in a 46-year-old man. Rounded atelectasis.

Rounded atelectasis with atypical computed tomography findings.

Rounded atelectasis is atelectasis of the peripheral part of the lung, typically in contact with thickened pleura, featuring characteristic computed tomography findings. In this case, a 61-year-old man with history of asbestos exposure presented with a right-middle-lobe nodule on chest radiograph, with computed tomography findings suspicious for neoplasm. The patient underwent surgical resectio...

Giant solitary fibrous tumor of pleura

A 60-year-old male presented with dyspnea and chest pain. He was referred with massive bulky mass. A mass in the left lung was observed using chest X-ray (Figures 1).  A computed tomography scan of the chest showed a mass on the left lung with complete lung collapse Figures 2 (A, B). The needle biopsy was performed and the case was diagnosed with solitary fibro...

Roentgenogram of the month. A middle-aged man with a right upper lobe mass. Rounded atelectasis of the right upper lobe with bilateral pleural thickening.

Giant malignant fibrous histiocytoma of the pleura arising from solitary fibrous tumour.

A 61 year old man was admitted with acute breathlessness. A computed tomographic (CT) scan showed a pleural mass 20 cm in diameter occupying the whole right hemithorax and causing massive lung atelectasis, with the exception of a small part of the upper lobe (fig 1A). Magnetic resonance imaging (MRI) showed a right pleural effusion with right hemidiaphragm and liver lowering without infiltratio...

Two cases of asbestosis and one case of rounded atelectasis due to non-occupational asbestos exposure.

Asbestos is a well-known cause of several neoplastic (malignant mesothelioma, lung cancer) and non-neoplastic (asbestosis, pleuropathies) occupational diseases. Lower-level exposure in the general environment may induce pleural plaques and thickenings, and is associated with an increased mesothelioma risk. We present two patients (a 68-year-old man and a 72-year-old woman) who developed asbesto...