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: [REDACTED]

Date of Admission: [REDACTED]

Date of Discharge: [REDACTED]

Primary Diagnosis: Worsening dyskinesia in Parkinson's disease

History of Presenting Illness:

Mr. [REDACTED] is a 68-year-old gentleman with a 20-year history of idiopathic Parkinson's disease who presented with worsening dyskinesia. The patient had bilateral subthalamic nucleus deep brain stimulation with left 2-, 1+ amplitude=2.0mV, pulse width=60 microseconds, frequency=130Hz, right 11-, C+ amplitude=1.0mV, pulse width=60 microseconds, and frequency=130Hz. He had been taking amantadine 100 mg three times a day and carbidopa-levodopa four to six tablets crushed and infused three times a day over four hours through a G-tube. Due to worsening dyskinesia, the patient was evaluated for Duopa.

Past Medical History:

The patient had a history of idiopathic sensorimotor axonal polyneuropathy with baseline pain in his feet 3/10 on a visual analog scale. A nerve conduction study done two years ago showed abnormal results. Neuropathic pain was managed with gabapentin.

Hospital Course:

The patient was started on Duopa at the initial visit. Within 24 hours of initiating Duopa, the patient developed severe neuropathic pain characterized by burning and stinging in his feet. The continuous rate was reduced to 2.5 cc/h, However, this did not relieve the symptoms. The gabapentin dose was increased to 600 mg two times a day, and he developed severe dizziness. Other medications such as Duloxetine, topical lidocaine cream, and hydrocodone-acetaminophen 5/325 mg failed to provide any relief. The continuous infusion rate was brought down to 1.4 cc/h, and the neuropathic pain started to improve.

Condition at Discharge:

The patient's condition at discharge had improved, and he expressed satisfactory pain control with the adjusted dose of Duopa. He was instructed to monitor his pain to maintain the optimal dose of Duopa.

Follow-Up:

The patient is to follow up with his primary care physician for further management of his Parkinson's disease and neuropathic pain.

Disposition:

The patient was discharged to his home in stable condition.

Signed,
[REDACTED]

Hz.
Upon diagnosis he had a mild form of