Logo American Journal of Case Reports

Call: 1.631.629.4328
Mon-Fri 10 am - 2 pm EST

Contact Us

Logo American Journal of Case Reports Logo American Journal of Case Reports Logo American Journal of Case Reports

07 September 2019 : Case report  Germany

Humoral Hypercalcemia in a Patient with Cholangiocellular Carcinoma – Effective Therapy with Denosumab

Unusual clinical course, Challenging differential diagnosis, Unusual or unexpected effect of treatment, Educational Purpose (only if useful for a systematic review or synthesis)

Igor Alexander Harsch1ABCE*, Peter Christopher Konturek2CEF

DOI: 10.12659/AJCR.917275

Am J Case Rep 2019; 20:1325-1330

Abstract

BACKGROUND: Hypercalcemia in cholangiocellular carcinoma is a highly uncommon event, mainly reported in Asian patients. In the absence of bone metastases, humoral hypercalcemia of malignancy (HHM) can be assumed. This is mostly the consequence of an elevated parathormone-related peptide (PTHrP) level. The standard therapeutic options in HHM are sometimes limited by the underlying disease or concomitant diseases.

CASE REPORT: We report the case of a 65-year-old Caucasian male. A syncope due to a hypercalcemia of 4.16 mmol/L (normal range, 2.19–2.54 mmol/L) was the initial symptom that eventually led to the diagnosis of cholangiocellular carcinoma. He had no metastatic bone disease; HHM was suspected. PTHrP was moderately elevated. Since there were contraindications for the standard therapeutic options, a therapy with 120 mg denosumab was initiated and proved effective, safe, and restored the patient’s quality of life for 11 months.

CONCLUSIONS: The moderate elevation of parathyroid hormone-related peptide (PTHrP) in this case is addressed in context with the recent insights of a substantial underestimation of this parameter by many commercial assays which can explain our observation. Denosumab, a human monoclonal antibody which acts as a RANKL-inhibitor (receptor activator of nuclear factor kappaB ligand) was recently suggested as a therapeutic alternative. In this case, the therapy of the hypercalcemia with denosumab due to contraindications for other therapies led to an effective and long-standing remission of hypercalcemia. Its effectivity should be studied in larger case samples.

Keywords: Cholangiocarcinoma, Hypercalcemia, Parathyroid Hormone, Aged, Bile Duct Neoplasms, Bone Density Conservation Agents, denosumab, Paraneoplastic Syndromes, Parathyroid Hormone-Related Protein, Syncope

0 Comments

In Press

26 Jan 2023 : Case report  Spain

A 39-Year-Old Woman with Endometriosis Who Developed a Subcapsular Liver Hematoma Following Laparotomic Sur...

Am J Case Rep In Press; DOI: 10.12659/AJCR.938169  

26 Jan 2023 : Case report  USA

Optic Neuritis as a Consequence of Long-Term Medical Treatment Using Anastrozole: A Case Report

Am J Case Rep In Press; DOI: 10.12659/AJCR.939026  

26 Jan 2023 : Case report  USA

A Rare Case of Ruptured Appendicitis Secondary to Metastatic Ovarian Cancer

Am J Case Rep In Press; DOI: 10.12659/AJCR.938982  

26 Jan 2023 : Case report  USA

Pharmacogenetic Testing in a 70-Year-Old Woman with Polypharmacy and Multiple Comorbidities: A Case Report

Am J Case Rep In Press; DOI: 10.12659/AJCR.938850  

Most Viewed Current Articles

13 Jul 2022 : Case report  USA

Whistling Scrotum: An Unusual Presentation of Pneumomediastinum in the Setting of an Open Scrotal Wound

DOI :10.12659/AJCR.936441

Am J Case Rep 2022; 23:e936441

06 Dec 2021 : Case report  Brazil

Lipedema Can Be Treated Non-Surgically: A Report of 5 Cases

DOI :10.12659/AJCR.934406

Am J Case Rep 2021; 22:e934406

23 Feb 2022 : Case report  USA

Penile Necrosis Associated with Local Intravenous Injection of Cocaine

DOI :10.12659/AJCR.935250

Am J Case Rep 2022; 23:e935250

17 Feb 2022 : Case report  Oman

Myocarditis, Pulmonary Hemorrhage, and Extensive Myositis with Rhabdomyolysis 12 Days After First Dose of P...

DOI :10.12659/AJCR.934399

Am J Case Rep 2022; 23:e934399

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923