Some symptoms of a hypoechoic lesion in the pancreas may be weight loss, hypoglycemia coupled with a greater secretion of insulin, and abdominal pain, says Healio. A hypoechoic lesion is an area on a sonogram that is darker than normal because it echoes fewer ultrasound waves than surrounding tissue, according to Veterinary Radiology.
Most cancers show up on an ultrasound as hypoechoic areas, according to the National Institutes of Health. If the lesion is cancerous and found in the head of the pancreas, symptoms may be weight loss, jaundice, nausea and vomiting, and pain in the abdomen, according to WebMD. If the lesion is located in the tail or body of the pancreas, the symptoms include weight loss and pain in the abdomen and back.
The lesion may also be a sign of chronic pancreatitis, says Healio. Symptoms include sometimes severe abdominal pain that can spread to the back, nausea and vomiting, weight loss, and diarrhea with oily or clay-colored stools.
Often, the symptoms of pancreatic cancer are silent until the cancer is well-advanced, says WebMD. However, some people experience early but nonspecific symptoms up to six months before a diagnosis. Some people suddenly find tastes that they used to enjoy unpalatable, while others lost their appetite, felt unusually full at meals, or experienced extreme weakness. Other people have bouts of acute pancreatitis.