Ovarian carcinoma producing parathyroid hormone-related protein causing hypercalcemia and metastatic calcification detected on (18)F-FDG PET-CT.

Hypercalcemia is associated with gynecologic malignant diseases, and cases involving various organs such as the uterus, ovaries, vulva, and vagina. This may be due to elevated levels of parathyroid hormone-related peptide (PTHrP). We describe here two cases of ovarian carcinoma simultaneously producing PTHrP that caused hypercalcemia and metastatic calcification detected on 18F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography-computed tomography (PET-CT).