Persistent Cough, may be a symptom of Lung Cancer.
symptoms of Lung Cancer, can result from, local tumor growth and invasion
of adjacent structures; regional growth, including spread to nearby lymph
nodes; spread of cancer to distant parts of the body; and paraneoplastic
symptoms that are caused by hormones that are produced by Lung Cancer cells.
Cancer can sometimes be discovered, when a chest x-ray is taken for another
purpose, in a person who is not experiencing symptoms.
Cancers that originate, and grow in bronchi, and spread to nearby lymph
nodes, can produce many symptoms - pain, cough, shortness of breath, pneumonia,
coughing up blood, hoarseness caused by pressure on a nerve, difficulty
swallowing due to obstruction of the esophagus, and swelling of the neck,
face, and upper extremities caused by pressure on blood vessels.
cells that have broken away from the primary tumor, and have spread to
the brain, distant lymph nodes, liver, or other parts of the body, can
cause a variety of symptoms. Depending on which organs are affected, these
symptoms can include headache, weakness, pain, bone fractures,
jaundice, and bleeding.
who have Lung Cancer, most often people with Small Cell Lung Cancer, may
also have remote, indirect effects of Cancer, called Paraneoplastic Symptoms,
symptoms that occur "along with" (para) the Cancer (Neoplasm). They are
caused by hormones or other substances produced by the Cancer cells.
is a wide range of categories of Paraneoplastic symptoms, including: disorders
of the hormone production, the nervous system, the blood, the kidneys,
example, some Lung Cancer cells produce, Arginine Vasopressin (AVP),
which acts on the kidneys to cause a drastic reduction of the concentration
of sodium in the body. Sodium deficiency in turn causes severe confusion
and may even produce coma.
Paraneoplastic Symptom, is caused by Adrenocorticotropic Hormone (ACTH),
the hormone normally produced by the pituitary gland to act on the adrenal
glands and regulate various body functions. Unrestrained ACTH production
by Lung Cancer cells, causes elevated blood sugar levels, diabetes, decreased
concentration of potassium in the blood, and an increase in body fat and
(abnormally high concentration of calcium compounds in the circulated blood),
caused by production of a hormone-like substance, occurs in about 5 percent
of people diagnosed with Lung Cancer. Symptoms produced by hypercalcemia
include: loss of appetite, nausea, drowsiness, constipation, and mental
Source: National Cancer
Institute, U.S. Health & Human Services