Insulinoma is a rare neuroendocrine tumor of the pancreas that secretes excess insulin, and it is most commonly referred to by this clinical name in modern medical literature. While synonyms such as "islet cell adenoma" or "B-cell tumor" appear in older records, "insulinoma" is the universally accepted terminology used in ICD-10 (D13.7) and Orphanet (ORPHA:467) to ensure diagnostic clarity. Why does insulinoma have multiple names? Historically, the naming of insulinoma evolved as medical understanding of pancreatic function progressed. Early literature often described these tumors based on their histological appearance, leading to terms like "islet cell tumor" or "nesidioblastoma." Because these tumors originate from the beta cells of the pancreatic islets of Langerhans, they were sometimes classified by their cellular origin rather than their functional hormone secretion. Today, the term insulinoma is preferred because it accurately describes both the pathology and the defining clinical characteristic: autonomous insulin production. What are the common synonyms and historical terms? When reviewing older medical charts or international research papers, you may encounter several alternative terms for insulinoma. Understanding these synonyms is vital for searching databases effectively: Islet cell adenoma: Often used when the tumor is benign. Beta-cell tumor: Refers to the specific cell type involved in insulin secretion. Nesidioblastoma: An older, rare term sometimes found in historical medical texts. Pancreatic endocrine tumor (PET): A broader classification that includes insulinoma. How is insulinoma classified in medical systems? Standardized nomenclature is essential for global patient care. In the International Classification of Diseases (ICD), insulinoma is typically categorized under benign neoplasms of the pancreas. Genetic databases like OMIM (Online Mendelian Inheritance in Man) track insulinoma particularly when it occurs as part of a hereditary syndrome, such as Multiple Endocrine Neoplasia type 1 (MEN1). Recognizing these designations helps patients coordinate care across different medical specialties. Next steps Consult an endocrinologist or pancreatic surgeon to verify your diagnosis and current staging. Connect with the 15 members of the DiseaseMaps.org community who are managing insulinoma to share personal experiences. Request copies of your pathology reports to clarify if your record uses older synonyms or current terminology. Visit the NIH GARD website to stay updated on the latest research and clinical trial opportunities. Medical disclaimer: This content is for educational purposes and does not replace professional medical advice, diagnosis, or treatment; always seek the advice of your physician regarding a medical condition. References Orphanet: Rare Disease Database (ORPHA:467) NIH Genetic and Rare Diseases Information Center (GARD) OMIM: Online Mendelian Inheritance in Man (#613733) World Health Organization (WHO) Classification of Tumours of Endocrine Organs

Short answer · Medically reviewed summary · Last updated: 2026-05-08

Insulinoma is a rare neuroendocrine tumor of the pancreas that secretes excess insulin, and it is most commonly referred to by this clinical name in modern medical literature. While synonyms such as "islet cell adenoma" or "B-cell tumor" appear in older records, "insulinoma" is the universally accepted terminology used in ICD-10 (D13.7) and Orphanet (ORPHA:467) to ensure diagnostic clarity. Why does insulinoma have multiple names? Historically, the naming of insulinoma evolved as medical understanding of pancreatic function progressed.

Insulinoma synonyms

Name: Insulinoma synonyms
Creator: DiseaseMaps Editorial Team
Published: 2016-04-29UTC10:53:11.0000000

Other names for Insulinoma: synonyms, acronyms and related terms used by doctors and patients.

Insulinoma is a rare neuroendocrine tumor of the pancreas that secretes excess insulin, and it is most commonly referred to by this clinical name in modern medical literature. While synonyms such as "islet cell adenoma" or "B-cell tumor" appear in older records, "insulinoma" is the universally accepted terminology used in ICD-10 (D13.7) and Orphanet (ORPHA:467) to ensure diagnostic clarity.

Why does insulinoma have multiple names?

Historically, the naming of insulinoma evolved as medical understanding of pancreatic function progressed. Early literature often described these tumors based on their histological appearance, leading to terms like "islet cell tumor" or "nesidioblastoma." Because these tumors originate from the beta cells of the pancreatic islets of Langerhans, they were sometimes classified by their cellular origin rather than their functional hormone secretion. Today, the term insulinoma is preferred because it accurately describes both the pathology and the defining clinical characteristic: autonomous insulin production.

What are the common synonyms and historical terms?

When reviewing older medical charts or international research papers, you may encounter several alternative terms for insulinoma. Understanding these synonyms is vital for searching databases effectively:

Islet cell adenoma: Often used when the tumor is benign.

Beta-cell tumor: Refers to the specific cell type involved in insulin secretion.

Nesidioblastoma: An older, rare term sometimes found in historical medical texts.

Pancreatic endocrine tumor (PET): A broader classification that includes insulinoma.

How is insulinoma classified in medical systems?

Standardized nomenclature is essential for global patient care. In the International Classification of Diseases (ICD), insulinoma is typically categorized under benign neoplasms of the pancreas. Genetic databases like OMIM (Online Mendelian Inheritance in Man) track insulinoma particularly when it occurs as part of a hereditary syndrome, such as Multiple Endocrine Neoplasia type 1 (MEN1). Recognizing these designations helps patients coordinate care across different medical specialties.

Next steps

Consult an endocrinologist or pancreatic surgeon to verify your diagnosis and current staging.

Connect with the 15 members of the DiseaseMaps.org community who are managing insulinoma to share personal experiences.

Request copies of your pathology reports to clarify if your record uses older synonyms or current terminology.

Visit the NIH GARD website to stay updated on the latest research and clinical trial opportunities.

Medical disclaimer: This content is for educational purposes and does not replace professional medical advice, diagnosis, or treatment; always seek the advice of your physician regarding a medical condition.