Type 3c Diabetes: The Overlooked Type Often Misdiagnosed as Type 2

The majority of people are familiar with type 1 and type 2 diabetes; type 3c diabetes is a less common variety that frequently goes unnoticed. This disorder, sometimes called pancreatogenic diabetes, is often misdiagnosed as type 2 diabetes, which can result in incorrect treatment and preventable complications. Why? It is not just caused by insulin resistance but also by pancreatic injury.

We’ll go over everything you need to know about type 3c diabetes in this article, including its causes, symptoms, development, why it’s frequently misunderstood, and how it differs from other forms of the disease. We’ll also explore how type 3c diabetes is diagnosed, effective treatment for type 3c diabetes, and how to manage daily life with this overlooked condition.

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What Is Type 3c Diabetes?

Type 3c diabetes, which is known as pancreatogenic diabetes or pancreatogenous diabetes mellitus, can occur when the pancreas are unable to produce enough insulin. The hormone insulin helps regulate blood glucose (sugar) levels, which provide the body with energy.

Without insulin, blood glucose may accumulate in the bloodstream rather than entering the body’s cells. High blood sugar over time can harm organs and tissues such as the heart, kidneys, eyes, and nerves.

What Causes Type 3c Diabetes?

When your pancreas sustains enough damage to impair its capacity to produce insulin, type 3c diabetes results. The following underlying circumstances or factors may cause the damage:

Chronic Pancreatitis: This condition is characterized by persistent inflammation of the pancreas. Your pancreas gradually stops producing hormones and enzymes due to fibrosis, a scarring of the tissues caused by persistent inflammation. Type 3c diabetes affects 25% to 80% of patients with chronic pancreatitis.

Pancreatic Cancer: Diabetes is strongly associated with pancreatic cancer, particularly pancreatic ductal adenocarcinoma, which is the most prevalent type. Diabetes affects almost half of those with pancreatic cancer. Pancreatic cancer tumors have the potential to harm your pancreas and result in Type 3c diabetes.

Hemochromatosis: Your body stores too much iron when you have hemochromatosis, also known as iron overload. Your intestines normally absorb the proper quantity of iron from the food you eat.

However, hemochromatosis causes your body to absorb excess iron and deposit it in your organs, particularly the pancreas, liver, and heart. Type 3c diabetes might result from damage to your pancreas’s iron reserves.

Cystic Fibrosis: A genetic (inherited) disorder, cystic fibrosis (CF) causes thick, sticky mucus to accumulate in organs, such as the pancreas and lungs. This mucus may damage and scar your pancreas, hindering its ability to produce adequate insulin and leading to Type 3c diabetes.

Pancreatectomy: This surgical procedure involves removing all or a portion of your pancreas. A pancreatectomy may be necessary for several conditions, including severe chronic pancreatitis, pancreatic cancer, and pancreatic cysts. Type 3c diabetes may or may not resolve after a pancreatectomy.

Certain insulin-secreting cells will remain after a partial pancreatectomy. Sometimes they are sufficient to keep your blood sugar within a safe range. If your surgeon is unable to save some of your insulin-producing cells, you will develop diabetes after a total pancreatectomy.

How Type 3c Diabetes Develops

To understand how type 3c diabetes develops, you must consider the pancreas’s function in the body. When the pancreas sustains an injury that impairs its ability to produce insulin, type 3c diabetes results.

Diabetes can result from pancreatic damage caused by diseases, including cystic fibrosis, chronic pancreatitis, and pancreas surgery, either total or partial removal (pancreatectomy). Diabetes that develops as a result of pancreatic disorders affecting the exocrine and digestive processes of the pancreas is called type 3c diabetes, or pancreatogenic diabetes.

Common Symptoms of Type 3c Diabetes

One of the pancreas’s primary functions is regulating blood sugar. Type 3c diabetes impedes insulin secretion. The body’s blood sugar levels may rise too high (hyperglycemia) in the absence of insulin. Both acute and chronic type 3c diabetic symptoms may result from this.

Type 3c diabetic symptoms include the following:

• Being extremely thirsty
• Weariness and exhaustion
• Confusion
• Passing urine frequently
• Vision blurriness
• Headaches
• Irritability
• Accidental loss of weight
• Slow healing of wounds
• Regular infections
• Compromised immunity
• Injury to organs 

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Why Type 3c Diabetes Is Often Misdiagnosed

The majority of people are aware of kinds 1 and 2 diabetes; there is a third, less prevalent kind called “3c” that develops as a result of a pancreatic condition, such as pancreatic cancer.

According to recent research, patients are misdiagnosed with type 2 diabetes instead of type 3c because even physicians may not be as knowledgeable about the third kind of diabetes as they should be.

When a physician correctly diagnoses type 3c diabetes, they can investigate more closely for an underlying pancreatic tumor or other condition. An undetected pancreatic tumor is the cause of diabetes in between 0.5 and 1% of patients with newly diagnosed diabetes. As a result, scientists are closely examining this connection as a chance to identify pancreatic cancer early.

Type 3c vs Type 1 and Type 2 Diabetes: Key Differences

For appropriate treatment, it is essential to comprehend the difference between type 2 and type 3c diabetes: 

Underlying Cause: Insulin resistance is the primary cause of type 2 diabetes, while pancreatic damage is the primary cause of type 3c diabetes. 

Insulin Production: Organ damage in type 3c diabetes results in decreased insulin production. People with type 2 diabetes can still produce insulin, but their bodies may not use it efficiently. 

Digestive Problems: Type 3c diabetes is associated with digestive enzyme deficiency, unlike types 1 and 2.

These differences emphasize the need for accurate diagnosis.

How Type 3c Diabetes Is Diagnosed

Clinicians use the same criteria to diagnose type 3c diabetes as they do for other types of diabetes: a hemoglobin A1c (average blood glucose level) of 6.5% or above, a fasting blood sugar >/= 126 mg/dL, or other routine tests. However, diagnosing type 3c diabetes might occasionally be more difficult for medical professionals.

There are currently no universally accepted diagnostic standards for type 3c diabetes. As a result, it may be challenging for medical professionals to distinguish type 3c diabetes from type 2 diabetes.

Clinicians use the following tests to identify type 3c diabetes: 

Blood Glucose Tests: Your doctor may prescribe a blood test to check if blood glucose levels are within normal limits if you have diabetic symptoms. An HbA1c test, which measures your average blood glucose level over the previous 2 to 3 months, might also be recommended by your doctor. 

Pancreatic Imaging Tests: Your doctor may request a pancreatic imaging test if they have not identified a type 3c diabetes risk factor. It can detect damage to your exocrine pancreas. Computed tomography (CT) scans, MRIs, and endoscopic ultrasound are among the various pancreatic imaging examinations. Ask your doctor whether you would benefit from these. 

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Treatment and Management Strategies

As of right now, there are no widely recognized recommendations for the management of type 3c diabetes. Doctors treat type 3c diabetes similarly to type 2 diabetes. Oral medication, synthetic insulin, diet, and exercise are some examples. However, exocrine pancreatic insufficiency (EPI) can also occur in people with type 3c diabetes.

To enhance digestion and prevent malnutrition, they may require pancreatic enzyme replacement therapy (PERT): 

Oral Medication: To manage their blood sugar, many individuals with type 3c diabetes take oral tablets. These medications function in various ways. While some medications help the pancreas release more insulin, others aim to increase your body’s sensitivity to insulin. 

Metformin: The American Diabetes Association (ADA) recommends metformin for the treatment of type 2 diabetes, and it is frequently the first-choice drug for type 3c diabetes. Metformin lowers the blood sugar levels by improving insulin sensitivity and decreasing hepatic glucose production. 

Pancreatic Enzyme Replacement Therapy: Pills called “pancreatic enzyme replacement therapy” (PERT) can help the body better absorb proteins and lipids. In addition to insulin, patients with type 3c diabetes may experience problems with the exocrine pancreas (exocrine pancreatic insufficiency). PERT helps the body effectively digest meals by replacing the enzymes that break down food. 

Insulin: You can inject synthetic insulin to treat high blood sugar. The pancreas continuously secretes insulin to control blood sugar levels. Insulin may need to be injected into the bloodstream when the pancreas is injured and unable to produce insulin.

Daily Life with Type 3c Diabetes

A thorough approach is necessary while living with type 3c diabetes:

• Routine monitoring of blood sugar levels
• Controlling digestion and blood sugar levels
• Supplementing with enzymes when eating
• Keeping up regular follow-up care

Potential Complications If Misdiagnosed

Serious repercussions may result from misdiagnosing type 3c diabetes as type 2 diabetes:

• Inadequate blood sugar regulation as a result of improper treatment
• Worsening malnutrition and weight loss
• A higher chance of problems, including cardiovascular disease and neurological damage

When to Suspect Type 3c Diabetes

Type 3c diabetes should be suspected based on the following warning signs:

• History of surgery or pancreatic illness
• Presence of chronic pancreatitis and diabetes
• Weight loss that is not explained
• Poor reaction to standard type 2 therapies

Early detection of these signs can enhance diagnosis and results. 

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Conclusion

Type 3c diabetes often goes disregarded, yet it demands greater recognition and a precise diagnosis. Unlike other types of diabetes, pancreatic damage causes it and leads to both digestive issues and blood sugar imbalance.

Early detection of symptoms can help prevent misdiagnosis and ensure proper treatment, particularly in people with a history of pancreatic disease. Effective management requires a customized strategy that accounts for both digestive support and insulin requirements. Understanding pancreatogenic diabetes improves overall quality of life and treatment outcomes.