
A prospective, multicenter study found that a blood-based miRNA assay combined with CA19-9 improved early detection of pancreatic ductal adenocarcinoma.
A 68-year-old man presents with a dark lesion on his forehead. A surgical resection is performed. What is your diagnosis?
A 68-year-old man presents with a dark lesion on his forehead. A surgical resection is performed.
What is your diagnosis?






