Posterior Mediastinal Masses

Gastric and enteric cysts: located in the posterior mediastinum in a paravertebral location and nearly all are associated with vertebral malformations. The gastric type has the same coats as the stomach, the enteric type similar to the wall of the small intestine. Combined forms of cysts are termed gastroenteric cysts.

Neurogenic tumours: the most common posterior mediastinal masses. Most are asymptomatic. MRI scan may be necessary to rule out intraspinal extension along the nerve roots (dumbbell tumours).

Nerve sheath tumours account for 65% of all mediastinal neurogenic tumours and include neurilemoma (schwannoma) and neurofibromas. Of patients with nerve sheath tumours, 25-40% have multiple neurofibromatosis (von Recklinghausen's disease). Malignant tumours such as neurogenic sarcomas and malignant schwannomas may occur and other tumours include neurob-lastomas and paragangliomas.

Getting Started With Dumbbells

Getting Started With Dumbbells

The use of dumbbells gives you a much more comprehensive strengthening effect because the workout engages your stabilizer muscles, in addition to the muscle you may be pin-pointing. Without all of the belts and artificial stabilizers of a machine, you also engage your core muscles, which are your body's natural stabilizers.

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