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: 
Electronic Health Record Discharge Summary

Patient Name: [REDACTED]
Date of Birth: [REDACTED]
Admission Date: [REDACTED]
Discharge Date: [REDACTED]
Admitting Diagnosis: Giant Prolactinoma with Extrasellar Extension
Discharge Diagnosis: Insulinoma

Hospital Course:
The patient, an eight-year-old male with giant prolactinoma with extrasellar extension, presented in 2008 with progressive headache and visual disturbances. The patient was treated with high doses of cabergoline, resulting in normalization of prolactin and total tumor shrinkage. In 2013, the patient underwent transcranial excision of the tumor due to its resistance to cabergoline therapy and developed recurrent hypoglycemic episodes during the immediate postoperative period. Biochemical analysis confirmed this to be endogenous insulin dependent hypoglycemia. Imaging located a well-circumscribed lesion in the head of the pancreas, confirmed via histology as an insulinoma with benign characteristics. Six months after the pituitary surgery, the patient received three-field radiotherapy and continued on cabergoline resulting in declining prolactin levels. The patient's baseline echocardiography was normal. The patient is being evaluated for new onset primary hyperparathyroidism due to high calcium levels.

Summary:
The patient initially presented with giant prolactinoma with extrasellar extension, which was treated with high doses of cabergoline resulting in normalization of prolactin and total tumor shrinkage. Later, the patient underwent transcranial excision of the tumor due to its resistance to cabergoline therapy and developed recurrent hypoglycemic episodes postoperatively, which was confirmed biochemically as endogenous insulin dependent hypoglycemia. An imaging revealed an insulinoma in the head of the pancreas, which was enucleated and confirmed histologically as benign. The patient underwent three-field radiotherapy and continued treatment with cabergoline resulting in declining prolactin levels. The patient is being evaluated for new onset primary hyperparathyroidism due to high calcium levels.

 a new form of tumor with complete control of the primary