it is gastrinoma for sure21. A 35-year-old man comes to the physician because of a 6-month history of burning abdominal pain that occurs 1 to 2 hours After he eats. he also has had black stools for 2 days. Use of over the counter antacids and Histamine 2 (h2)-receptor blocking agents has not been effective in relieving his symptoms He is sweatlng profusely and has light-headedness when stands.His blood pressure is 105/70 mm/hg while sitting Physical examination shows epigastrIc tendemess A CT scan of the abdomen shows 1 cm mass in the pancreas. Immunohistochemical labeling of neoplastic CellS in a biopsy specimen is most likely to involve the use on antibodies directed to which which of the following substances ?
D) Human pancreatic polypeptide
I) vasoactive Intestinal polypeptide
i can seem to understand what time of Tumor this is Im confused if its a Gastrinoma or something else?