Consider the following medical report that includes the patient's historical health records. Use it to predict the disease that the patient is high likely exposed to. 

 Medical Report: allergies: patient recorded as having no known allergies to drugs attending: chief complaint: "worse headache of my life", diplopia, nausea. major surgical or invasive procedure: suboccipital craniotomy for tumor resection. ventriculostomy placement. lumbar drain placement. history of present illness: 22 year-old white male with history of migrane, presented to ed c/o incresed headache for 3 days, nausea, diplopia, diziness, photophobia, and blurred vision. patient trie dhis imitrex and excedrin for headache but didn't helped the headache.patient headache intensity was day before to emergency visit, while in ed.head ct revieled 4th ventricle mass and hydrocephalus, no midline shift.patient admitted to tsicu where ventriculostomy drain placed openin pressure 14-16 with clear csf for closer management of icp and posiible surgery. past medical history: migrane headache 4 rt ventricule mass since age 5, no f/u until now. left knee surgeryx2. social history: will be graduating this summer from universiy in accounting major.somekes on weekends. occ etoh with friends.denies recreational drug use. family history: father has dm physical exam: general: temp;97.9 pulse;94 bp; 109/68 rr;18 sao2; 99 ra. patient lying in bed, nad. cvs: rrr, s1, s2, no m/g/r. lungs: cta a/p bilat. abd: soft, nontender,bowel sounds are present. ext: no edema. neuro:alert, orientedx3, language fluent. perrl, positive fine nystagmus on horizantal line.cn ii-v,vii , viii-xii intact. cn vi paralysis. strenght in all muscle group.sensation intact t/o to light touch.positive for vibration t/o. coordination mild bilateral dysmetria.dtr:2+ t/o, toes downward. pertinent results: 10:25am glucose-82 urea n-11 creat-1.0 sodium-134 potassium-4.3 chloride-94* total co2-30* anion gap-14 10:25am glucose-82 urea n-11 creat-1.0 sodium-134 potassium-4.3 chloride-94* total co2-30* anion gap-14 10:25am wbc-4.4 rbc-4.98 hgb-15.4 hct-43.3 mcv-87 mch-30.9 mchc-35.6* rdw-12.5 10:25am plt count-144* 10:25am pt-12.8 ptt-29.2 inr(pt)-1.0 10:25am d-dimer-185 brief hospital course: 22 year-old white male with history of migrane, presented to ed c/o increased headache for 3 days, nausea, diplopia, dizziness, photophobia, and blurred vision. head ct revealed th ventricle mass and hydrocephalus, no midline shift .patient admitted to ts icu where ventriculostomy drain placed opening pressure 14-16 with clear csf for closer management of icp.mri showed large fourth ventricular mass consistent with ependymoma. patient became intermittently agitated, confuse, and disoriented, attempted to pull his ventriculostomy on his way to head ct on . patient and family pursued with surgery for the fourth ventricle mass, which preformed on resection of the tumor with suboccipital craniotomy.patient transferred from tsicu to neurosurgery stepdown unit on in the aftenoon of .patient neurologically remained stable.all preop symptoms resolved after surgery.ventricular drain discontinued on .lumbar drain placed on for csf leakage from his occipital incision site.lumbar drain gradually weaned to d/c on . pateint denies any headache, no leakage from the site. discharge medications: 1. oxycodone-acetaminophen 5-325 mg tablet sig: 1-2 tablets po q4-6h (every 4 to 6 hours) as needed. disp:*60 tablet(s)* refills:*0* 2. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). disp:*60 capsule(s)* refills:*0* 3. lansoprazole 30 mg capsule, delayed release(e.c.) sig: one (1) capsule, delayed release(e.c.) po daily (daily). disp:*60 capsule, delayed release(e.c.)(s)* refills:*0* 4. dexamethasone 2 mg tablet sig: one (1) tablet po bid (2 times a day): start decadron 1mg(1/2tablet) twicwe a day for 3 days.then decadron 1mg( tablet) once day for 3 days, then stop . disp:*10 tablet(s)* refills:*0* 5. chlorpromazine 25 mg tablet sig: one (1) tablet po tid (3 times a day) as needed. disp:*20 tablet(s)* refills:*0* 6. acetaminophen 325 mg tablet sig: 1-2 tablets po q4-6h (every 4 to 6 hours) as needed. discharge disposition: home discharge diagnosis: fourt ventricule mass discharge condition: neurologically stable. discharge instructions: report increaed heaache, visual changes, double vision nausea, vomiting.report any drainage, redeness, swelling from insicion site. followup instructions: follow up for staples to be removed @ 11am in dr. office (lumbar to be removed at the same day of cranial staples removal) follow up in brain tumor clinic: provider: , md where: neurology phone: date/time: 15:00 procedure: spinal tap incision of lung spinal tap incision of lung other operations on extraocular muscles and tendons other excision or destruction of lesion or tissue of brain intravascular imaging of intrathoracic vessels diagnoses: esophageal reflux sixth or abducens nerve palsy other specified complications of procedures not elsewhere classified communicating hydrocephalus benign neoplasm of brain 

Answer: The patient is high likely exposed to