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We report two cases of squamous cell carcinoma of upper urinary tract with hypercalcemia. Case 1; a 54 year old female with primary squamous cell carcinoma (SCC) of right ureter showed marked hypercalcemia and leukocytosis. High levels of serum parathyroid hormone-related peptide (PTHrP) and granulocyte colony stimulating factor (G-CSF) were detected. Although chemotherapy of cisplatin and 5-fluorouracil with radiotherapy was effective, thereafter recurrence was occurred in renal pelvis, and the patient died 17 months after the initiation of therapy. Case 2; a 54 year old male of primary SCC of right renal pelvis with local lymphadenopathy and anterior mediastinal metastases showed marked hypercalcemia. High levels of PTHrP were detected. Although the patient was administered UFT with palliative radiotherapy to the anterior mediastinum, he died 2 months after the initiation of therapy. To our knowledge, the case 1 is the third case that of the high levels of serum PTHrP and G-CSF simultaneously in squamous cell carcinoma of upper urinary tract.

TWO CASES OF SQUAMOUS CELL CARCINOMA OF UPPER URINARY TRACT WITH HYPERCALCEMIA