While pancreatic cancer is known for its deadliness and tendency to present with few obvious symptoms, a primary care doctor says that it is a myth that the disease is impossible to spot early. Dr. Philippa Kaye, a primary care doctor, noted that while the cancer can strike with little warning, there are subtle signs that patients and doctors should not dismiss.
Dr. Kaye recounted two patient cases that illustrate the challenge and potential for early detection. One patient, referred to as Alan, was diagnosed with stage four pancreatic cancer at age 77 and died within months. Dr. Kaye found no discernible early warning signs in his medical records. In contrast, another patient, Leroy, a man in his late 60s, was diagnosed with pancreatic cancer after routine blood work revealed he had developed diabetes. This diagnosis was unexpected as Leroy did not fit the typical profile for type 2 diabetes, not being overweight and having no family history of the condition. He had also been experiencing unexplained weight loss.
This combination of newly developed diabetes, particularly in individuals without typical risk factors and with unintended weight loss, is a significant clue, according to Dr. Kaye. Research indicates that approximately one in every 100 people diagnosed with new-onset diabetes are subsequently found to have pancreatic cancer within three years. The pancreas produces insulin, a hormone that regulates blood sugar, and a tumor can disrupt this function, leading to elevated blood sugar levels and the onset of diabetes before other cancer symptoms appear.
While ordinary type 2 diabetes often develops gradually, diabetes linked to pancreatic cancer can sometimes manifest more rapidly, with blood sugar levels rising quickly and proving difficult to manage with standard treatments. Furthermore, Dr. Kaye pointed out that individuals with long-standing type 2 diabetes for more than five years have nearly double the risk of developing pancreatic cancer compared to those without diabetes. However, she stressed that pancreatic cancer remains rare, and most people with diabetes will not develop it.
Beyond diabetes, Dr. Kaye highlighted changes in bowel habits and urine color as other potential early indicators. Pancreatic enzymes aid in fat digestion, and a tumor can interfere with this, leading to stools that are greasy, oily, pale, foul-smelling, and prone to floating. Bile duct obstruction by a tumor can also cause stools to become pale or clay-colored, while urine may turn noticeably darker. Research suggests that dark urine can appear months before a pancreatic cancer diagnosis.
Another symptom Dr. Kaye mentioned is a specific type of back pain. While back pain is common and usually unrelated to pancreatic cancer, she described a pattern where pain begins in the upper abdomen and radiates to the back. This pain may worsen after eating or when lying flat, with relief found by sitting forward or leaning over. This can occur as a growing tumor puts pressure on nerves and surrounding structures.
Dr. Kaye urged individuals not to dismiss persistent or unexplained changes in their health, even if they seem vague. She emphasized that while pancreatic cancer can be difficult to detect, it is not impossible, and reporting concerning symptoms to a doctor can lead to earlier diagnosis and potentially better outcomes. "If something about your health changes unexpectedly, persists or simply doesn't make sense, don't dismiss it," she advised.