<prompt> Askin;s tumour is-Primitive neuroectodermal tumour of chest wallMerkell cell carcinoma of skinParaneoplastic tumour of chest wallCommon bile duct tumour  <response>: Develop from soft tissues of chest. A member of ewings family of tumours. A rare case of thoracopulmonary tumour. Computed tomography. Histopathology. Histo studies.. Used for diagnosis. 