Surgery may consist of the removal of the upper lobe of a lung together with its associated structures (subclavian artery, vein, branches of the brachial plexus, ribs and vertebral bodies), as well as mediastinal lymphadenectomy. Surgical access may be via thoracotomy from the back or the front of the chest and modifications. Nonsurgical treatment may consist of radiation therapy alone or clinical trials of new combinations of treatment. References
External links

Pancoast Tumor at eMedicine
Pulmonary sulcus tumor entry in the public domain NCI Dictionary of Cancer Terms This article incorporates public domain material from the U.S. National Cancer Institute document: "Dictionary of Cancer Terms".
Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases. It is also used to treat high blood calcium due to cancer and adrenal insufficiency along with other steroids. It is taken by mouth.Common side effects with long-term use include cataracts, bone loss, easy bruising, muscle weakness, and thrush. Other side effects include weight gain, swelling, high blood sugar, increased risk of infection, and psychosis. It is generally considered safe in pregnancy and low doses appear to be safe when breastfeeding. After prolonged use, prednisone needs to be stopped gradually.Prednisone is a prodrug and must be converted to prednisolone by the liver before it becomes active. Prednisolone then binds to glucocorticoid receptors, activating them and triggering changes in gene expression.Prednisone was patented in 1954 and approved for medical use in the United States in 1955. It is on the World Health Organizations List of Essential Medicines. It is available as a generic medication. In 2020, it was the 30th most commonly prescribed medication in the United States, with more than 19 million prescriptions.