Hypercalcemia affected in metastatic breast cancer patients without bone metastasis: report of three cases

Bibliographic Details
Title: Hypercalcemia affected in metastatic breast cancer patients without bone metastasis: report of three cases
Authors: Sakina Hashizume, Masafumi Shimoda, Tetsuhiro Yoshinami, Kaori Abe, Nanae Masunaga, Yoshiaki Sota, Tomohiro Miyake, Tomonori Tanei, Kenzo Shimazu
Source: Surgical Case Reports, Vol 8, Iss 1, Pp 1-6 (2022)
Publisher Information: SpringerOpen, 2022.
Publication Year: 2022
Collection: LCC:Surgery
Subject Terms: Humoral hypercalcemia of malignancy, Breast cancer, PTHrP, Local osteolytic hypercalcemia, Surgery, RD1-811
More Details: Abstract Background Since humoral hypercalcemia of malignancy (HHM) in breast cancer patients without bone metastasis is rare, the clinical features of this condition are not fully understood. Case presentation During the recent 12 years, 3602 patients were diagnosed with breast cancer in our institution, and only three patients developed HHM without bone metastasis. They were all recurrent breast cancer patients with visceral metastases including the lung and the liver. It took no more than 2 months since symptomatic onset to hospitalization because of hypercalcemia. The maximum serum calcium concentrations were 15.0 mg/dL or higher. All patients had symptoms related to hypercalcemia. Treatment of hypercalcemia including hydration, calcitonin, bisphosphonate, and diuretics was initially effective in the three patients. However, two of three cases were eventually fatal because of unsuccessful treatment of breast cancer. Conclusions The common features of HHM without bone metastasis in breast cancer patients include acute onset, severe symptomatic hypercalcemia, and presence of visceral metastasis. Treatment of hypercalcemia decreased serum calcium level in a short period, while successful treatment of breast cancer was essential for a long-term management of HHM. This report provides a consideration to help elucidate the pathophysiology and medical care of breast cancer patients with HHM without bone metastasis.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2198-7793
Relation: https://doaj.org/toc/2198-7793
DOI: 10.1186/s40792-022-01565-9
Access URL: https://doaj.org/article/99f8a25b55544e639cc9a37f0bfcc515
Accession Number: edsdoj.99f8a25b55544e639cc9a37f0bfcc515
Database: Directory of Open Access Journals
More Details
ISSN:21987793
DOI:10.1186/s40792-022-01565-9
Published in:Surgical Case Reports
Language:English