What is the fine-grained topic of the following text: Objective: To report the case of a 28-year-old woman who presented with hypercalcemia (total calcium =4.11 mmol/L), elevated parathyroid hormone (PTH) 24.6 pmol/L, normal parathyroid hormone-related peptide 7.8 pg/mL, and a 63 mm × 57 mm, poorly differentiated neuroendocrine carcinoma (small-cell type) pancreatic mass with liver metastases. Only return the topic.
Case report on a 28-year-old woman with hypercalcemia and neuroendocrine carcinoma pancreatic mass with liver metastases.