Acanthosis nigricans in a patient with metastatic insulinoma post peptide receptor radionuclide therapy

Acanthosis nigricans (AN) is a common dermatosis associated with hyperinsulinemia and insulin resistance. However, AN has been rarely reported in patients with insulinoma, a state of persistent hyperinsulinemia. We present a case of metastatic insulinoma, in whom AN manifested after the first cycle...

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Main Authors: Jenny S W Yun, Chris McCormack, Michelle Goh, Cherie Chiang
Format: Article
Language:English
Published: Bioscientifica 2022-06-01
Series:Endocrinology, Diabetes & Metabolism Case Reports
Online Access:https://edm.bioscientifica.com/view/journals/edm/2022/1/EDM21-0150.xml
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author Jenny S W Yun
Chris McCormack
Michelle Goh
Cherie Chiang
author_facet Jenny S W Yun
Chris McCormack
Michelle Goh
Cherie Chiang
author_sort Jenny S W Yun
collection DOAJ
description Acanthosis nigricans (AN) is a common dermatosis associated with hyperinsulinemia and insulin resistance. However, AN has been rarely reported in patients with insulinoma, a state of persistent hyperinsulinemia. We present a case of metastatic insulinoma, in whom AN manifested after the first cycle of peptide receptor radionuclide therapy (PRRT). A 40-year-old man was diagnosed with metastatic insulinoma after 5 months of symptomatic hypoglycemia. Within 1 month post PRRT, the patient became euglycemic but developed a pigmented, pruritic rash which was confirmed on biopsy as AN. We discuss the rare manifestation of AN in subjects with insulinoma, the role of insulin in the pathogenesis of AN, malignant AN in non-insulin-secreting malignancies and association with other insulin-resistant endocrinopathies such as acromegaly.
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spelling doaj.art-16bdb09806044e9e89cb8a2a9c78a6f72022-12-22T00:18:26ZengBioscientificaEndocrinology, Diabetes & Metabolism Case Reports2052-05732022-06-01111510.1530/EDM-21-0150Acanthosis nigricans in a patient with metastatic insulinoma post peptide receptor radionuclide therapyJenny S W Yun0Chris McCormack1Michelle Goh2Cherie Chiang3Department of Surgical OncologyDepartment of Surgical OncologyDepartment of Surgical OncologyDepartment of Internal Medicine, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; University of Melbourne, Parkville, Victoria, AustraliaAcanthosis nigricans (AN) is a common dermatosis associated with hyperinsulinemia and insulin resistance. However, AN has been rarely reported in patients with insulinoma, a state of persistent hyperinsulinemia. We present a case of metastatic insulinoma, in whom AN manifested after the first cycle of peptide receptor radionuclide therapy (PRRT). A 40-year-old man was diagnosed with metastatic insulinoma after 5 months of symptomatic hypoglycemia. Within 1 month post PRRT, the patient became euglycemic but developed a pigmented, pruritic rash which was confirmed on biopsy as AN. We discuss the rare manifestation of AN in subjects with insulinoma, the role of insulin in the pathogenesis of AN, malignant AN in non-insulin-secreting malignancies and association with other insulin-resistant endocrinopathies such as acromegaly.https://edm.bioscientifica.com/view/journals/edm/2022/1/EDM21-0150.xml
spellingShingle Jenny S W Yun
Chris McCormack
Michelle Goh
Cherie Chiang
Acanthosis nigricans in a patient with metastatic insulinoma post peptide receptor radionuclide therapy
Endocrinology, Diabetes & Metabolism Case Reports
title Acanthosis nigricans in a patient with metastatic insulinoma post peptide receptor radionuclide therapy
title_full Acanthosis nigricans in a patient with metastatic insulinoma post peptide receptor radionuclide therapy
title_fullStr Acanthosis nigricans in a patient with metastatic insulinoma post peptide receptor radionuclide therapy
title_full_unstemmed Acanthosis nigricans in a patient with metastatic insulinoma post peptide receptor radionuclide therapy
title_short Acanthosis nigricans in a patient with metastatic insulinoma post peptide receptor radionuclide therapy
title_sort acanthosis nigricans in a patient with metastatic insulinoma post peptide receptor radionuclide therapy
url https://edm.bioscientifica.com/view/journals/edm/2022/1/EDM21-0150.xml
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AT michellegoh acanthosisnigricansinapatientwithmetastaticinsulinomapostpeptidereceptorradionuclidetherapy
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