Pertti Siponen

Learn More
A cartilaginous tumor of the cervical spine in a 31-year-old man is described, with discussion of the differential diagnostic problems both in aspiration biopsy cytology and in histopathology. The tumor mass caused nasopharyngeal swelling and infiltrated the base of the skull and the spinal canal. Aspiration biopsy cytology of the tumor demonstrated mostly(More)
  • 1