scholarly journals Cholangiocarcinoma Presenting as Humoral Hypercalcemia of Malignancy: A Case Report and Literature Review

Cureus ◽  
2019 ◽  
Author(s):  
Burak Erdinc ◽  
Preethi Ramachandran ◽  
Ruchi Yadav ◽  
Sonu Sahni ◽  
Gardith Joseph
Keyword(s):  
Case Report ◽  
Literature Review ◽  
Humoral Hypercalcemia Of Malignancy ◽  
Hypercalcemia Of Malignancy ◽  
Humoral Hypercalcemia

Defining the roles of parathyroid hormone-related protein in normal physiology

1996 ◽  
Vol 76 (1) ◽  
pp. 127-173 ◽  
Author(s):  
W. M. Philbrick ◽  
J. J. Wysolmerski ◽  
S. Galbraith ◽  
E. Holt ◽  
J. J. Orloff ◽  
...  
Keyword(s):  
Parathyroid Hormone ◽  
Fetal Life ◽  
Related Protein ◽  
Humoral Hypercalcemia Of Malignancy ◽  
Physiological Functions ◽  
Hypercalcemia Of Malignancy ◽  
Normal Tissues ◽  
Humoral Hypercalcemia ◽  
Parathyroid Hormone Related Protein ◽  
Differentiation And Proliferation

Parathyroid hormone-related protein (PTHrP) was discovered as a result of a search for the circulating factor secreted by cancers which causes the common paraneoplastic syndrome humoral hypercalcemia of malignancy. Since the identification of the peptide in 1982 and the cloning of the cDNA in 1987, it has become clear that PTHrP is a prohormone that is posttranslationally cleaved by prohormone convertases to yield a complex family of peptides, each of which is believed to have its own receptor. It is also clear that the PTHrP gene is expressed not only in cancers but also in the vast majority of normal tissues during adult and/or fetal life. In contrast to the situation in humoral hypercalcemia of malignancy in which PTHrP plays the role of a classical "endocrine" hormone, under normal circumstances PTHrP plays predominantly paracrine and/or autocrine roles. These apparent physiological functions are also complex and appear to include 1) regulation of smooth muscle (vascular, intestinal, uterine, bladder) tone, 2) regulation of transepithelial (renal, placental, oviduct, mammary gland) calcium transport, and 3) regulation of tissue and organ development, differentiation, and proliferation. In this review, the discovery of PTHrP, the structure of its gene and its cDNAs, and the posttranslational processing of the initial translation products are briefly reviewed. Attention is then focused on a detailed organ system-oriented review of the normal physiological functions of PTHrP.

scholarly journals Hypercalcemia in Colorectal Cancer

2018 ◽  
Vol 12 (4) ◽  
Author(s):  
Rakin Jamal ◽  
Caroline Mariano
Keyword(s):  
Prise En Charge ◽  
Colorectal Cancers ◽  
Rapid Progression ◽  
Humoral Hypercalcemia Of Malignancy ◽  
Hypercalcemia Of Malignancy ◽  
Humoral Hypercalcemia ◽  
De Se ◽  
Cancers Colorectaux ◽  
Progression Of Disease ◽  
Douleurs Abdominales

Humoral hypercalcemia of malignancy is common in many cancers but is rarely present in colorectal cancers with only 24 documented cases in the literature. In this report, we present a case of a 67-year-old woman complaining of right sided abdominal pain and diarrhea. Imaging showed an obstructing cecal mass and the pathological diagnosis was poorly differentiated adenocarcinoma. After a hemicolectomy, she developed humoral hypercalcemia of malignancy which was treated with intravenous bisphosphonates. She continued to worsen due to her rapid progression of disease and died less than one month after her initial diagnosis. We reviewed the 24 other documented cases to investigate the prognosis of hypercalcemia in colorectal cancers along with reviewing the clinical presentation and management of humoral hypercalcemia of malignancy. Résumé L’hypercalcémie humorale maligne est courante dans de nombreux cas de cancers, mais elle est rare dans les cancers colorectaux; la documentation recense 24 cas seulement. Dans le présent article, nous décrivons le cas d’une femme de 67 ans se plaignant de douleurs abdominales du côté droit et de diarrhée. Un examen d’imagerie indiqua la présence d’une masse caecale obstructive dont le diagnostic pathologique s’est avéré être celui d’un adénocarcinome peu différencié. À la suite d’une hémicolectomie, la patiente a développé une hypercalcémie humorale maligne qui a été traitée à l’aide de bisphosphonates intraveineux. Son état a continué de se détériorer en raison de la progression rapide de la maladie et la patiente est décédée moins d’un mois après le diagnostic initial. Nous passons en revue les 24 cas documentés pour analyser les pronostics d’hypercalcémie dans les cas de cancers colorectaux, tout en examinant le tableau clinique et la prise en charge de l’hypercalcémie humorale maligne.    

Sign in / Sign up

Export Citation Format

Share Document