cancer
Paraneoplastic Syndromes
Endocrine syndromes
Small cell carcinoma of the lung may secrete a substance that stimulates the Overview of the Adrenal Glands to produce increased levels of the hormone Hypercalcemia (High Level of Calcium in the Blood) in the blood (hypercalcemic syndrome) may occur in people with solid tumors or leukemias. Hypercalcemic syndrome can occur when the cancer secretes into the blood a hormone-like substance (similar to Excessive production of other hormones, usually by pancreatic carcinoid tumors, can cause Carcinoid Tumors and Carcinoid Syndrome —flushing, wheezing, diarrhea, and heart valve problems. 