After surgery to remove the carcinoma, the secondary polycythemia may resolve.
Polycythemia, 2. Hypercalcemia, 3. Hypertension, 4. Hepatic dysfunction, 5. Feminization or masculinization, 6. Cushing syndrome, 7. Eosinophilia, 8.
Polycythemia can result from increased erythropoietin activity. However, anemia may also occur. Hypercalcemia is common and may require treatment.