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]
Age: 68 years
Gender: male
Date of Admission: [REDACTED]
Date of Discharge: [REDACTED]

Admission Diagnosis:
Stage IV squamous NSCLC

Hospital Course:
The patient was admitted with a diagnosis of stage IV squamous NSCLC. He underwent definitive radiation therapy to the right upper lung lobe with chemotherapy consisting of carboplatin and paclitaxel combination for 6 weeks, with a positive response to therapy. However, after 9 months, his lung nodules were noted to be progressively enlarging, and two additional nodules were identified, concerning for new metastases. He was started on nivolumab, a PD-1 inhibitor, at a dose of 3 mg/kg infused every 2 weeks.

During the course of treatment with nivolumab, after six cycles, he developed a widespread pruritic eruption involving the chest, back, extremities, and penis. Upon examination, he was found to have numerous pink to pink-brown thin papules and plaques on the chest, abdomen, back, arms, legs, and penile shaft, some of which had an erythematous base. He also developed a shallow ulceration of the left lateral tongue. A biopsy of a characteristic lesion on the left upper arm was performed, which showed a lichenoid mucocutaneous eruption due to nivolumab.

Treatment was initiated with triamcinolone 0.1% ointment to the body, clobetasol 0.05% ointment to the penis, and clobetasol 0.05% gel to the tongue twice daily. Oral prednisone taper starting at 80 mg daily for 5 weeks was also started and nivolumab treatment was held for 1 week. After the completion of the oral steroid taper, his rash had significantly improved, and the penile erosions and oral ulceration had completely resolved despite resuming nivolumab therapy. However, 6 days after discontinuing prednisone, the rash recurred on the chest and back, requiring a second prednisone taper.

The patient received narrowband UVB phototherapy three times per week as an adjunct therapy. A maintenance dose of 5 mg daily prednisone was used for control of rash and pruritus. After ~70 NBUVB treatments, a slow prednisone taper with oral hydroxyzine was initiated. The patient elected to stop NBUVB treatments and has remained on 4 mg daily prednisone to date.

Discharge Diagnosis:
Lichenoid mucocutaneous eruption due to nivolumab

Discharge Plan:
The patient was discharged with a recommendation to continue the use of oral prednisone at 4 mg daily and cessation of narrowband UVB phototherapy. The patient was advised to follow up with his oncologist for further management of stage IV squamous NSCLC.

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