Somatostatin-secreting Pheochromocytoma Mimicking Insulin-dependent Diabetes Mellitus

We herein present the findings of a 42-year-old woman with either adrenal pheochromocytoma or intraadrenal paraganglioma that simultaneously secreted somatostatin, thus mimicking insulin-dependent diabetes mellitus. Pheochromocytoma was clinically diagnosed based on scintigraphy, elevated catecholam...

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Main Authors: Hirai, Hiroyuki, Midorikawa, Sanae, Suzuki, Shinichi, Sasano, Hironobu, Watanabe, Tsuyoshi, Satoh, Hiroaki
Format: Online
Language:English
Published: The Japanese Society of Internal Medicine 2016
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5109567/
id pubmed-5109567
recordtype oai_dc
spelling pubmed-51095672016-11-17 Somatostatin-secreting Pheochromocytoma Mimicking Insulin-dependent Diabetes Mellitus Hirai, Hiroyuki Midorikawa, Sanae Suzuki, Shinichi Sasano, Hironobu Watanabe, Tsuyoshi Satoh, Hiroaki Case Report We herein present the findings of a 42-year-old woman with either adrenal pheochromocytoma or intraadrenal paraganglioma that simultaneously secreted somatostatin, thus mimicking insulin-dependent diabetes mellitus. Pheochromocytoma was clinically diagnosed based on scintigraphy, elevated catecholamine levels, and finally a histopathological analysis of resected specimens. The patient had diabetic ketosis, requiring 40 U insulin for treatment. Following laparoscopic adrenalectomy, insulin therapy was discontinued and the urinary c-peptide levels changed from 5.5-9.0 to 81.3-87.0 μg/day. Histologically, somatostatin immunoreactivity was detected and the somatostatin levels were elevated in the serum-like fluid obtained from the tumor. Clinicians should be aware of the possible occurrence of simultaneous ectopic hormone secretion in patients with pheochromocytoma. The Japanese Society of Internal Medicine 2016-10-15 /pmc/articles/PMC5109567/ /pubmed/27746437 Text en https://creativecommons.org/licenses/by-nc-nd/4.0/ The Internal Medicine is an Open Access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To view the details of this license, please visit (https://creativecommons.org/licenses/by-nc-nd/4.0/).
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Hirai, Hiroyuki
Midorikawa, Sanae
Suzuki, Shinichi
Sasano, Hironobu
Watanabe, Tsuyoshi
Satoh, Hiroaki
spellingShingle Hirai, Hiroyuki
Midorikawa, Sanae
Suzuki, Shinichi
Sasano, Hironobu
Watanabe, Tsuyoshi
Satoh, Hiroaki
Somatostatin-secreting Pheochromocytoma Mimicking Insulin-dependent Diabetes Mellitus
author_facet Hirai, Hiroyuki
Midorikawa, Sanae
Suzuki, Shinichi
Sasano, Hironobu
Watanabe, Tsuyoshi
Satoh, Hiroaki
author_sort Hirai, Hiroyuki
title Somatostatin-secreting Pheochromocytoma Mimicking Insulin-dependent Diabetes Mellitus
title_short Somatostatin-secreting Pheochromocytoma Mimicking Insulin-dependent Diabetes Mellitus
title_full Somatostatin-secreting Pheochromocytoma Mimicking Insulin-dependent Diabetes Mellitus
title_fullStr Somatostatin-secreting Pheochromocytoma Mimicking Insulin-dependent Diabetes Mellitus
title_full_unstemmed Somatostatin-secreting Pheochromocytoma Mimicking Insulin-dependent Diabetes Mellitus
title_sort somatostatin-secreting pheochromocytoma mimicking insulin-dependent diabetes mellitus
description We herein present the findings of a 42-year-old woman with either adrenal pheochromocytoma or intraadrenal paraganglioma that simultaneously secreted somatostatin, thus mimicking insulin-dependent diabetes mellitus. Pheochromocytoma was clinically diagnosed based on scintigraphy, elevated catecholamine levels, and finally a histopathological analysis of resected specimens. The patient had diabetic ketosis, requiring 40 U insulin for treatment. Following laparoscopic adrenalectomy, insulin therapy was discontinued and the urinary c-peptide levels changed from 5.5-9.0 to 81.3-87.0 μg/day. Histologically, somatostatin immunoreactivity was detected and the somatostatin levels were elevated in the serum-like fluid obtained from the tumor. Clinicians should be aware of the possible occurrence of simultaneous ectopic hormone secretion in patients with pheochromocytoma.
publisher The Japanese Society of Internal Medicine
publishDate 2016
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5109567/
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