Figure1:Thoracic scan (parenchymal section) showing a right upper lobar tumour process with a long axis of about 11 cm with parietal and costal invasion opposite, the rest of the parenchyma is the site of emphysema bubbles

Figure2:Thoracic scan (media window) objectivizing a right upper lobar tumor process of heterogeneous density, with a necrotic component and parietal invasion of the ribs and soft tissues

Histopathological subtype

Pleiomorphic carcinoma

A poorly differentiated non-small cell carcinoma (squamous, adenocarcinoma or undifferentiated) with at least 10% spindle and/or giant cells or a carcinoma consisting only of spindle and giant cells.


Tumour with non-small cell carcinoma (squamous or adk) and sarcoma with heterologous elements (rhabdomyosarcoma, chondrosarcoma, osteosarcoma)

Pulmonary blastoma

A biphasic tumor with fetal adenocarcinoma (low grade) and primary mesenchymal stroma. There is often a specific mesenchymal differentiation such as osteosarcoma chondrosarcoma or rhabdomyosarcoma.

Table 1:Histo-pathological classification of sarcomatoid carcinomas [3]