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]       MRN: [redacted]

Admission Date: [redacted]       Discharge Date: [redacted]

Admitting Diagnosis: None

Hospital Course:

The patient, a 56-year-old female, was admitted for assessment following an incident round screening mammography that revealed a new density in the left breast. She was asymptomatic and physically fit, with no significant medical or family history. Bilateral breast examination was normal.

Diagnostic tests, including a breast ultrasound and a mammogram, were conducted. These tests revealed a new density in the left breast, and the patient was referred for a biopsy, which was performed under local anesthesia.

The patient's postoperative course was unremarkable, and she was advised to follow-up with the referring physician who would discuss biopsy results and next steps.

Discharge Plan:

The patient was counseled on appropriate breast health surveillance and advised to follow up with her referring physician. Follow-up visits will include mammograms and clinical breast exams as recommended.

Summary:

The patient was admitted for assessment following the discovery of a new breast mass detected on screening mammography. The breast mass was biopsied, and the patient was advised to follow-up with the referring physician. The patient was instructed on appropriate breast health surveillance and advised on follow-up visits. No further treatment or follow-up was directed at this time.

Signed,

[redacted], MD
