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 Information:
Name: [Redacted], Age: 5, Sex: Male, Admission Date: [Redacted], Discharge Date: [Redacted]

Chief Complaint and Hospital Course:
The patient was admitted to the hospital with language articulation disorders, uncoordinated movements, and repeated episodes of seizures that occurred frequently. The patient's stutter had no obvious causes and had existed for one and a half years. The patient had gradually developed unclear enunciation, clumsy speech, and slow responses over time. Within six months prior to admission, he began to have uncoordinated movements, such as ataxia and instable gait. Three episodes of generalized tonic-clonic seizures had occurred in the week just preceding the clinic visit, every episode lasting for about one minute and occurring about once every two days. The patient underwent various tests, including blood tests to check for lactic acid, homocysteine, ammonia, ceruloplasmin, and liver and kidney function, and cerebrospinal fluid and blood tests to analyze autoimmune encephalitis antibodies and genetic metabolic diseases. The tests did not reveal any significant abnormalities, and the EEG showed multiple spikes and slow-wave discharges bilaterally. Brain MRI scans showed high hyperintensities adjacent to the bilateral posterior horns of the lateral ventricles on T2-weighted images and broadened cerebellar fissures. The patient was diagnosed with epilepsy and treated with oral sodium valproate (VPA) at 15 mg/kg per day, which was subsequently increased to approximately 25 mg/kg per day in two weeks. VPA administration was maintained at a varied blood concentration range of 56–78 μg/mL over a period of six months. At the 6-month follow-up, the episodes had decreased from once every two days to about once a month, articulation disorders and uncoordinated movements persisted, and a visual test was performed, which showed no obvious abnormalities.

Medical History and Physical Examination:
The patient was a 5-year-old Chinese male who achieved appropriate developmental milestones before the age of 3.5 years and was born at full-term by vaginal delivery, without any complications. His parents had no known consanguinity, and both they and an older sister were healthy. On physical examination, the length, weight, and head circumference were normal for age, and the patient was conscious and showed normal muscle strength and muscle tone. Patellar reflex and Achilles tendon reflex were normal, and Babinski signs were negative. He was inarticulate and responded to questions slowly. He could not complete the hand-alternating movement test, heel–knee–tibia test, or finger-nose test due to poor cooperation with the instructions. The intelligence quotient value, measured by combined Raven's test, was at a medium level.

Diagnosis:
The patient was diagnosed with epilepsy due to the history of seizures and EEG results, as well as LINCL due to the genetic analysis showing a homozygous missense point mutation c.892G > A(p.Glu298Lys) in exon 7 in CLN6. The mutation was not detected in 259 control subjects. PolyPhen-2, SIFT, and MutationTaster analysis suggested that the mutation would negatively affect protein function.

Plan and Recommendations:
The patient was treated with oral sodium valproate (VPA) at a median level to reduce the frequency of seizures, which was considered successful over the course of six months. Articulation disorders and uncoordinated movements persisted, and no significant changes were observed in visual tests. The patient was discharged and recommended to maintain follow-up visits with a neurologist and geneticist to further monitor progression of LINCL.

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