Final answer:
Endoscopic ultrasound guided fine-needle aspiration might be used to diagnose a pancreatic mass, celiac lymph nodes associated with an upper GI cancer, and a left adrenal mass, but not liver failure. Liver failure is typically diagnosed using different types of liver function tests and imaging studies.
Step-by-step explanation:
An endoscopic ultrasound guided fine-needle aspiration (EUS-FNA) is a diagnostic procedure that uses endoscopic ultrasound to guide the placement of a needle for aspirating cells from a mass or lesion for pathological examination. This technique might be used to diagnose a variety of conditions within the abdomen including a pancreatic mass, celiac lymph nodes associated with an upper gastrointestinal (GI) cancer, and a left adrenal mass.
However, EUS-FNA would not be used to diagnose liver failure. Liver failure is a condition where the liver loses its ability to function properly and is typically diagnosed using liver function tests (LFTs), imaging tests such as abdominal ultrasound, CT scans, and specific blood tests that check for signs of liver function impairment, not fine-needle aspiration.