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 Birth: [Redacted]

Admission Date: [Redacted], Discharge Date: [Redacted]

Hospital: [Redacted]

Admitting Diagnosis: Metastatic Hepatocellular Carcinoma (HCC)

Hospital Course

The patient, a 71-year-old Japanese man, was admitted to the hospital with an increased level of serum alpha-fetoprotein (AFP). A follow-up examination revealed a pedunculated polypoid tumor in the middle thoracic esophagus, which was later diagnosed as a metastatic HCC tumor. Chest and abdominal CT scans showed no evidence of new liver lesions or metastasis to the lung, except for lymph node metastases in the lesser curvature area of the stomach. Surgical resection was performed, which involved esophageal resection via right thoracotomy with regional lymph node dissection. Esophagogastrostomy was performed, and the whole stomach was used for reconstruction to provide better protection of the submucosal vessels.

Postoperative course was complicated by detection of multinodular-type HCC in both lobes of the liver two months following the operation. The patient received no additional therapies and succumbed to disease progression two months following the operation.

Summary of Findings:

- A 71-year-old Japanese man with a history of HCC underwent a left lateral segmentectomy for HCC
- Serum AFP level increased two years post-surgery; Follow-up examination detected a metastatic esophageal tumor from HCC
- Surgical resection was performed via right thoracotomy with regional lymph node dissection and esophagogastrostomy
- Multinodular-type HCC was detected in both lobes of the liver two months post-operation
- Patient died from disease progression two months follow the operation.
