You are a medical doctor specialized in cancer diagnosis. 
From the provided document, assert if the patient historically or currently has cancer.
For each condition, only pick from "YES", "NO", or "MAYBE". And you must following format without anything further. The results have to be directly parseable with python json.loads(). 
Sample output: {"cancer": 'MAYBE'}.
Never output anything beyond the format.
Provided document: 
Discharge Summary

Patient Name: Not provided
Sex: Female
Age: 46 years
Date of Admission: November, 2017
Date of Discharge: Not provided

Hospital Course:
The patient presented with a longstanding history of pancreatitis in November 2017. She had undergone a distal pancreatectomy and splenectomy in 1992 after showing symptoms of radiating epigastric pain, nausea, and vomiting typically lasting for 1 week and occurring 3-4 times per year. Since that time, she had been periodically followed with pancreatic cancer surveillance. 

In May 2017, the patient started experiencing recurring symptoms of acute pancreatitis, including dull waxing and waning epigastric pain with foods and liquids. The CT scan showed significant calcification in the right-sided pancreatic remnant, and both CA 19-9 and CEA values were elevated. The patient underwent a completion pancreaticoduodenectomy and ethanol nerve block. Intraoperatively, significant adhesions were present, which were lysed. The duodenum was also transected using a gastrointestinal anastomosis stapler. The hepaticojejunostomy was performed using the Roux limb from the prior Puestow procedure, and the duodenojejunostomy was made with the proximal jejunum just distal to the ligament of Trietz. The pathology on the resection specimen demonstrated chronic pancreatitis with parenchymal calcifications and duct ectasia consistent with PRSS1-related HP. No cancer was seen. The patient recovered well and was discharged on postoperative day 5.

Summary:
The patient presented with a history of pancreatitis and underwent a distal pancreatectomy, splenectomy, and cholecystectomy in 1992. May 2017 recurrence of symptoms of acute pancreatitis was followed by a CT scan that revealed significant calcification in the right-sided pancreatic remnant, which led to the decision to perform a completion pancreaticoduodenectomy and ethanol nerve block using a gastrointestinal anastomosis stapler. The patient recovered well and was discharged on postoperative day 5.
