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: increased headache, numbness major surgical or invasive procedure: ->stx cyst aspiration & angio(neg) history of present illness: 35 y/o male who had been seen and diagnosed with a right sided hemorrhagic brain stem cyst. this cyst was partially drained under stereotactic guidance on . the patient had transient improvement of the numbness pattern described above post operatively but has since noticed that the numbness has been increasing in intensity since the date of surgery. he presents after having developed a headache that started yesterday morning and has not subsided. he has taken tylenol several times with good effect. he denies any visual changes, nausea or vomiting or memory loss. past medical history: as noted in hpi social history: social etoh family history: non-contributory physical exam: on admission: t:98.3 bp:147 /78 hr:75 r 16 o2sats: 100% ra gen: wd/wn, comfortable, nad. heent: pupils: 6 to 4 mm bilaterally, more brisk on the right eoms: intact neck: supple. extrem: warm and well-perfused. neuro: mental status: awake and alert, cooperative with exam, normal affect. orientation: oriented to person, place, and date. recall: objects at 5 minutes. language: speech fluent with good comprehension and repetition. naming intact. no dysarthria or paraphasic errors. cranial nerves: i: not tested ii: pupils equally round and reactive to light,6 to 4 mm bilaterally. visual fields are full to confrontation. iii, iv, vi: extraocular movements intact bilaterally without nystagmus. v, vii: facial strength and sensation intact and symmetric. viii: hearing intact to voice. ix, x: palatal elevation symmetrical. : sternocleidomastoid and trapezius normal bilaterally. xii: tongue midline without fasciculations. motor: normal bulk and tone bilaterally. no abnormal movements, tremors. strength full power throughout. no pronator drift sensation: intact to light touch, proprioception toes downgoing bilaterally coordination: normal on finger-nose-finger on discharge: alert, oriented to person place and date, perrl, bilateral 6th and 4th nerve palsy. nystagmus in all fields, primarily in upgaze. full motor strength throughout all four extremities. right pronator drift pertinent results: labs on admission: 11:34am blood wbc-4.8 rbc-5.11 hgb-14.9 hct-42.2 mcv-83 mch-29.3 mchc-35.4* rdw-14.0 plt ct-176 11:34am blood neuts-68.1 lymphs-25.3 monos-5.5 eos-0.7 baso-0.4 11:34am blood pt-12.9 ptt-26.4 inr(pt)-1.1 11:34am blood glucose-107* urean-10 creat-0.9 na-141 k-4.4 cl-104 hco3-30 angap-11 labs on discharge: 03:24am blood wbc-7.4 rbc-4.30* hgb-12.9* hct-36.5* mcv-85 mch-30.1 mchc-35.4* rdw-13.7 plt ct-171 03:24am blood pt-14.0* ptt-27.8 inr(pt)-1.2* 04:51am blood glucose-143* urean-7 creat-0.8 na-136 k-3.6 cl-99 hco3-30 angap-11 04:51am blood calcium-9.2 phos-3.1 mg-1.8 imaging: head ct : findings: a left frontal burr hole is again noted. a 25 x 24 mm lesion in the left pons, extending into the cerebellar peduncle, has increased in size since , when it measured 22 x 20 mm. it contains a blood/fluid level, as before, with increased amount of blood. there is no adjacent edema. there is increased effacement of the left ambient cistern and partial effacement of the left anterolateral aspect of the fourth ventricle. the other ventricles are normal in size. impression: increased size and increased hemorrhagic component of the left pontine lesion, with increased mass effect. mri : technique: sagittal t1, axial t2, t2 stir, and flair images were acquired of the brain in the absence of intravenous gadolinium contrast. diffusion- weighted images were also reviewed. findings: a round cystic lesion measuring approximately 27 x 28 mm (3:12) in the left pons at the middle cerebellar peduncle junction is again visualized, comparable to the most recent prior examinations. images are notable for fluid-fluid level with layering seen inferiorly (3:12), overall suggestive of a hematocrit effect. there is subsequent mass effect on the left aspect of the fourth ventricle as before. the remainder of the ventricles is normal in size and configuration. there are no other intracranial masses, edema, or evidence of infarction. a small extra-axial fluid collection near the vertex (4:23) is consistent with history of previous cyst aspiration. impression: stable, predominantly cystic left pontine/middle cerebellar peduncle lesion, overall of nonspecific etiology. mri (preliminary read): increase in size of the left pontine cyst and mass effect on the 4 th ventrcile; hemorrhage into parenchyma cannot be excluded; small amount of intraventricula hemorrhage. close follow up if no itnervention is contemplated. head ct (post-aspirate) technique: axial ct images were acquired through the brain in the absence of intravenous contrast. findings: a cranial defect is seen at the left, near the vertex (2:28), consistent with recent stereotactic biopsy. a small amount of pneumocephalus is seen along the biopsy tract. the previously described cystic lesion in the region of the left pons is again visualized (2, 8) measuring 23 x 30 mm and contains a small amount of air, new from previous studies and likely sequelae of the stereotactic biopsy. also, new from previous studies is an inferior layering area of marked hyperdensity which is new from previous studies, appearing to be injected contrast material. superior to this and also layering is an area of more moderate hyperdensity, consistent with some residual blood products within this cyst. there are no new areas of intracranial hemorrhage. apart from surrounding edema around this cyst, there is no other evidence of edema. there is no evidence of infarction. slight effacement of the fourth ventricle is again visualized; however, the remainder of the ventricles is normal in size and configuration. the visualized osseous and soft tissue structures are unchanged since the previous studies. impression: post-stereotactic biopsy changes in the left pontine cystic lesion as detailed above. pathology : cytology report cyst fluid procedure date of report approved date: specimen received: 09- cyst fluid specimen description: received approximately 2 ml of brown fluid. prepared 1 thinprep slide. clinical data: brain stem cyst. report to: dr. diagnosis: cyst fluid from brain stem: negative for malignant cells. blood. pathology : procedure date tissue received report date diagnosed by dr. /ttl diagnosis: 1. brain stem cyst, biopsy "-20" (a): white matter and pigmented neurons (? dopaminergic) with focal gliosis, no tumor detected. 2. brain stem cyst, biopsy "-19" (smear): gliotic brain with numerous pilocytic astrocytes and fibers. 3. brain stem cyst, biopsy "-18" (b): white matter with focal gliosis. 4. brain stem cyst, biopsy "-17" (smear): gliotic brain with numerous pilocytic astrocytes and fibers. 5. brain stem cyst, biopsy "+4" (smear): gliotic brain with numerous pilocytic astrocytes and fibers. 6. brain stem cyst, biopsy "+5" (c): neuron cluster surrounded and white matter tracts with focally ectatic vessels, no tumor detected. 7. brain stem cyst, biopsy "-16" (d): neuron cluster and white matter tracts, no tumor detected. note: hemosiderin was found in one of the smear specimens and suggests the possibility of a remote hypertensive bleed with blood absorption and cyst formation with surround piloid gliosis and fiber formation. the low cellularity and lack of atypia argue for a reactive rather than neoplastic glial process. clinical: brain stem cyst. gross: the specimen is received fresh from the o.r. in seven parts, all labeled with the patient's name, ", " and with the medical record number. each part consists of a 0.1 x 0.1 x 0.1 cm fragment of white soft tissue. part 1 is additionally labeled "-20" and is entirely submitted in cassette a. part 2 is additionally labeled "-19" and is consumed entirely for intraoperative consultation. smear diagnosis by dr. is as follows: "gliotic brain with numerous pilocytic astrocytes and fibers". part 3 is additionally labeled "-18" and is entirely submitted. part 4 is additionally labeled "-17" and consumed for intraoperative consultation. smear diagnosis by dr. is as follows: "gliotic brain with numerous pilocytic astrocytes and fibers. differential diagnosis includes pilocytic astrocytoma and reactive gliosis". part 5 is additionally labeled "+4" and is entirely consumed for intraoperative consultation. smear diagnosis by dr. is as follows: "gliotic brain with pilocytic astrocytes and fibers". art 6 is additionally labeled "+5" and is submitted entirely in cassette c. part 7 is additionally labeled "-16" and is submitted entirely in cassette d. brief hospital course: patient is a 35m known to the nsurg service who was readmitted on for recurrent brain stem cyst and increased headache and numbness. he also later progressed to a left sided facial droop bilateral nystagmus , 6th nerve palsy and 4th nerve palsy and right pronator drift. on the evening of , he developed nausea that was refractory to pharmacological intervention and subsequently went to the operating room for emergent decompression and aspiration of the hemorrhagic cyst via stereotaxsis, followed by angiogram. angiogram was negative for any embolizable blood supply to halt the bleeding. , his exam was stable, but mri was done to further evaluate the effectiveness of the aspiration. mri showed recurrent cyst accumulation, larger in size with extravasation of blood product to the occipital horns and further compression of the 4th ventricle. given the cyst recurrence, and ongoing bleeding, it was determined that he would be best serviced by facilitating hospital transfer to the for consideration of open surgery by dr. . he was subsequently transferred to the in the evening of . medications on admission: ativan prn discharge medications: 1. acetaminophen 325 mg tablet sig: 1-2 tablets po q6h (every 6 hours) as needed for headache. 2. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). 3. bisacodyl 5 mg tablet, delayed release (e.c.) sig: two (2) tablet, delayed release (e.c.) po hs (at bedtime). 4. pantoprazole 40 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po q24h (every 24 hours). 5. hydromorphone 2 mg tablet sig: one (1) tablet po q4h (every 4 hours) as needed. 6. lorazepam 0.5 mg tablet sig: 1-2 tablets po q6h (every 6 hours) as needed for anxiety. 7. senna 8.6 mg tablet sig: one (1) tablet po bid (2 times a day) as needed. 8. acetaminophen-codeine 300-30 mg tablet sig: 1-2 tablets po q4h (every 4 hours) as needed. 9. ondansetron 4 mg iv q8h:prn n/v 10. prochlorperazine 5-10 mg iv q6h:prn 11. vancomycin 1000 mg iv q 12h duration: 2 doses 12. hydralazine 10 mg iv q6h sbp>160 13. metoprolol tartrate 5 mg iv once mr1 duration: 1 doses 14. dexamethasone 4 mg tablet sig: one (1) tablet po q8h (every 8 hours). discharge disposition: home discharge diagnosis: hemorrhagic brain stem cyst discharge condition: neurologically stable discharge instructions: general instructions ?????? have a friend/family member check your incision daily for signs of infection. ?????? take your pain medicine as prescribed. ?????? exercise should be limited to walking; no lifting, straining, or excessive bending. ?????? you may wash your hair only after sutures and/or staples have been removed. ?????? you may shower before this time using a shower cap to cover your head. ?????? increase your intake of fluids and fiber, as narcotic pain medicine can cause constipation. we generally recommend taking an over the counter stool softener, such as docusate (colace) while taking narcotic pain medication. ?????? unless directed by your doctor, do not take any anti-inflammatory medicines such as motrin, aspirin, advil, and ibuprofen etc. ?????? ?????? clearance to drive and return to work will be addressed at your post-operative office visit. ?????? make sure to continue to use your incentive spirometer while at home, unless you have been instructed not to. call your surgeon immediately if you experience any of the following ?????? new onset of tremors or seizures. ?????? any confusion or change in mental status. ?????? any numbness, tingling, weakness in your extremities. ?????? pain or headache that is continually increasing, or not relieved by pain medication. ?????? any signs of infection at the wound site: redness, swelling, tenderness, or drainage. ?????? fever greater than or equal to 101?????? f. followup instructions: follow-up appointment instructions ??????please return to the office in days(from your date of surgery) for removal of your staples/sutures and a wound check. this appointment can be made with the nurse practitioner. please make this appointment by calling . if you live quite a distance from our office, please make arrangements for the same, with your pcp. ??????please call ( to schedule an appointment with dr. /, to be seen in 4 weeks. **all cranial imaging since has been copied to multiple cd's and is in the wife's possession procedure: other cranial puncture computerized axial tomography of head other immobilization, pressure, and attention to wound diagnoses: intracerebral hemorrhage compression of brain disturbance of skin sensation facial weakness cerebral cysts nystagmus, unspecified other cerebellar ataxia 

Answer: The patient is high likely exposed to