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: 
Hospital Admission Summary:

This document summarizes the hospitalization of a 52-year-old female patient who was admitted due to complications related to schizoaffective disorder. The patient had a history of lithium treatment for over 18 years and had reported various comorbidities including high body mass index, hypertension, and chronic kidney disease. Diagnostic imaging revealed multiple tumors that eventually led to respiratory failure and the patient passed away.

Hospital Course:

The patient was admitted for medical evaluations in September 2015. Diagnostic imaging revealed multiple tumors located in the thyroid gland and kidneys. The patient underwent thyroidectomy and subsequent histological examinations showed the presence of two different tumors - a papillary thyroid carcinoma and an epithelial sarcoma-like tumor arising from the right lobe. A renal biopsy suggested the presence of oncocytoma. The patient's condition declined rapidly, and despite aggressive treatment, the patient eventually passed away in May 2016.

Physical Exam:

The physical examination revealed multiple nodules and tumors present in the thyroid gland and both kidneys. The patient also reported comorbidities, including hypertension, chronic kidney disease, increased body mass index, and elevated fasting plasma glucose levels.

Diagnostic Studies:

Computer tomography scans revealed pulmonary metastasis, an increased adrenal gland, and a renal mass in the left kidney. Further diagnostic examinations included thyroidectomy, histological examinations, and renal biopsy.

Summary and Discharge Instructions:

The patient's condition continued to worsen despite aggressive treatment interventions. The patient eventually passed away due to respiratory failure caused by pulmonary metastases. The hospital team would like to express condolences to the patient's family.

 anterior pituitary gland (a form of thyroid gland