Types of Lung Cancer
Small Cell Lung Cancer
is less common than non-small
cell lung cancer. Small Cell Lung Cancer accounts for fifteen percent of
all diagnoses, and is most prevalent among smokers. Small Cell Lung Cancer is
also called oat cell cancer, because malignant cells are oat-shaped.
Small Cell Lung Cancer is aggressive, and spreads quickly. In approximately
seventy percent of cases, the cancer has spread to other organs by the time the
disease is diagnosed. Once metastasized, a Small Cell Lung Cancer patient is
not a candidate for surgery, but does respond to chemotherapy.
Limited Small Cell Lung
About one-third of patients with SCLC have limited disease at initial
diagnosis. This stage is highly responsive to a combination of systemic
chemotherapy and radiation. Substantial shrinkage of tumor occurs in as many as
80 to 90% of patients with this treatment. Complete clinical remission can be
achieved in 50 to 60% of all patients with this stage of disease. Recent trials
of chemotherapy and radiation show median survival times of 15 to 18 months,
2-year survival rates of 30 to 40%, and 5-year survival rates of 10 to 15%.
Extensive Small Cell
In the two-thirds of patients with SCLC with extensive disease at initial
diagnosis, the response rate to systemic chemotherapy is 60 to 80%, median
survival time is 9 to 10 months, and the 2-year survival rate is less than 10%.
Five-year survival with extensive disease is rarely reported. Complete clinical
remission is achieved in only 20% to 30%.
The chemotherapeutic agents given for extensive disease are identical to those
used for limited disease.
Notice that the cells are almost only blue nucleus (DNA) material
making them "small" under the microscope.
Small cell lung cancer
a picture of Non-Small Cell Lung Cancer...