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:

Admission Date: [insert date]
Discharge Date: [insert date]

Patient Name: [insert name]
Age: 42 years
Gender: Male
Address: [insert address]

Diagnosis:
The patient was diagnosed with chronic active Epstein-Barr virus infection of T/NK-cell type, systemic form.

Hospital Course:
The patient was admitted due to a seizure and a history of wasting and worsening health condition for six months. Upon admission, he presented with recurrent fever, hepatosplenomegaly, and acute kidney failure. The patient underwent several diagnostic approaches, including CT scan, PET-CT, bone marrow biopsy, and thyroid gland biopsy. These examinations revealed atypical pulmonary infiltrates, bilateral hilar lymphadenopathy, increased LDH, mild pancytopenia, and granulomatosis with polyangiitis. Bronchial lavage was positive for Aspergillus antigen, but the patient's symptoms were not fully explained by pulmonary aspergillosis. The high positive proteinase 3 titer (1:135) indicated granulomatosis with polyangiitis, but biopsy of the kidney was not performed due to low platelet counts.

The patient was treated with high-dose steroid burst initially. However, the patient's condition worsened rapidly with further loss of weight and intermittent high fever despite antibiotic and antifungal treatments, and the assumption of granulomatosis with polyangiitis was ruled out. Infectious disease testing, including human immunodeficiency virus, Tuberculosis, Schistosomiasis, Malaria, and Leishmaniosis were negative, except for previous Hepatitis B and EBV infection. EBV DNA in the peripheral blood reached high levels. The clinical criteria for HLH were evaluated, but they were not fulfilled, and no typical findings of HLH were seen in the bone marrow biopsy. 

Treatment:
Based on the data by Sawada et al., the patient was treated with methylprednisolone and cyclophosphamide as a cooling down step to reduce the high viral load. The patient developed an epileptic seizure and clinical symptoms of meningitis, and a lumbar puncture was performed. Cranial MRI showed typical radiological signs for viral meningitis. The patient was initiated chemotherapy with cyclophosphamide, doxorubicin, vincristine, and prednisolone (CHOP) due to the clinical progression. Despite its limited activity for EBV-infection, treatment with foscavir was started. Upon two cycles of CHOP, the EBV load decreased remarkably from 2.8 × 106 copies/mL to < 200 copies/mL. An additional cycle of CHOP was administered and the patient remained in complete remission so far.

Outcome:
The patient was discharged in stable condition with instructions to follow up with their physician regularly. Further diagnostic imaging, laboratory work, or close clinical follow-up may be required to monitor the patient's condition.

Discharge Instructions:
1. Follow up with your physician regularly.
2. Take medications as prescribed.
3. Report any new symptoms or concerns to your physician immediately.
4. Maintain a healthy diet and exercise regularly.
5. Avoid contact with individuals who have been sick recently.
6. Rest and take things easy.

 techniques were successful and he became less responsive to treatment.