Lumbar spine chordoma

Giant Chordoma of the Thoracolumbar Spine

Chordomas are rare tumors from primitive notochord. They are usually located at sacrococcygeal region when it affects the spine. We present a case of giant chordoma in the thoracolumbar spine in Peru. A 43-year-old woman came to the hospital in Huanuco due to back pain and sensorymotor alterations in the lower limbs. Imaging confirmed an unresectable tumor involving the spine. Two years later, ...

Chordoma of the lumbar spine – a potential diagnosis not to be forgotten

Chordoma is a rare, malignant neoplasm thought to develop from the notochord. It most commonly occurs in the base of the cranium or the sacro-coccygeal region but around 15-20% affect the vertebral body. Extra-lesional resection with or without adjuvant radiotherapy is generally accepted as the mainstay of treatment for this slow-growing tumour. We present a case whereby a patient with a solita...

bIoMeChAnICs of luMbAR spIne AnD luMbAR DIsC

Lumbar spine densitometry.

failure of antigen production is more likely to be due to genetic change associated with incomplete penetrance than to genetic loss. An alternative or additional possibility cannot, however, be excluded-that exuberant cell division causes dilution of a particulate cytoplasmic factor responsible for the formation of the antigen. Loss of organ-specific antigens could influence tumour metastasis b...

Beam Collimation during Lumbar Spine Radiography: A Retrospective Study

Introduction: Collimating the primary beam to the area of diagnostic interest (ADI) has been strongly recommended as an effective method to reduce patient’s radiation dose and to improve image quality during radiology practice. Lack or inadequate collimation results in excessive radiation dose to patients and deterioration image quality.Objective: To assess the quality of beam collimation dur...