Lung Cancer
Lung cancer is the leading cause of cancer death. Prostate is now the second leading cause of cancer death in men – stomach is the one that has the big decrease. Now if you break the epidemiology data down and look at trends overall, the first thing you see – this is the overall curve, this is all ages both sexes – is that there has been a slight decrease in cancer mortality. This is seen more overall for the curve in males than in the curve for females, but there is an overall slight decrease.
Online generic drugs
Large carcinoma of the lung. Lung cancer is divided into about four histologic types and the reason for understanding that is simply to recognize the unique syndromes that are associated with each of these tumor types. The squamous or epidermoid cancer is usually a central tumor, compatible with the last x-ray I showed you. This is a tumor that often cavitates locally and may also erode vessels producing hemoptysis or so-called Rasmussen’s aneurysm. It is certainly related to smoking, which all of these types are. And all of these types of lung cancer have fairly striking perineoplastic syndromes that are associated with the squamous or epidermal type. The main thing is hypercalcemia, which is due to production of the PTH-like growth factor, the stimulants. It’s interesting that squamous within a lung less commonly metastasis to bone, and the adenocarcinoma or small cell carcinoma, which is much more commonly associated with hypercalcemia, which is on this perineoplastic basis. These small cell carcinomas are the ones that are also generally central to higher type of presentation instead of metastasizing very early on and are associated with a large array of perineoplastic syndromes. About 70% of these will elaborate ACTH immunologically. Not all of them have Cushing’s syndrome. In fact the disease is so rapid that the physical manifestations of Cushing’s are not so common in these patients but you will see it in hypertension or electrolyte abnormalities, even if they don’t have centripetal obesity, moon-faces. Also anti-diuretic hormones are released in about half of these patients. Hyponatremia is seen. You can see carcinoid syndrome and these very unusual neurologic syndromes such as Eaton-Lambert syndrome or reverse myasthenia gravis. It’s called reverse myasthenia because as you stimulate these muscle groups they become weaker with initial stimulation, but then as you keep going the muscles actually get stronger in terms of the action so it’s known as reverse myasthenia.
The adenocarcinoma of the lung is the disease that is most often seen in the periphery of the lung or scars in the lungs that are associated with migratory thrombophlebitis with acanthosis. Also with the syndrome of pulmonary hypertrophic osteoarthropathy, which is usually associated with plumbing. This is likely to lead to the production of growth hormone. And the final type of lung cancer, the so-called large cell cancer of the lung, also is central lesion and these are most notable for the production of gynecomastia, which is related to HCG production. So each of these four types of lung cancer is associated with a unique set of peri-neoplastic syndromes that make them most notable. If you have, for example, a 55-year-old male smoker who is on no medication who develops gynecomastia you are probably dealing with this type of lung cancer.
[...] the management of lung cancer, other than small cell lung cancer – which is really split off in all instances as a separate [...]