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: alcohol attending: chief complaint: headache, dizziness. major surgical or invasive procedure: - right posterior fossa craniotomy for mass resection history of present illness: 56m w/ pmh of rectal ca, lung mets, undergoing chemotherapy; c/o 1 month h/o of worsening h/a and dizziness; denies nausea other than after chemo and going away with meds; denies any vomitting; denies any fall; denies fevers or any other symptom; past medical history: rectal carcinoma status post chemotherapy and radiation, initial reseciton in , lung mets seen in 09 social history: 54 year old cantonese male who has no significant past medical history. he is married with one son. does understand some english, speaks little english. lives with his wife and son. family history: non-contributory physical exam: on mse: (per translator/family): intact, oreinted x3, no dysarthria, no naming errors cn ii-xii: intact, no abnormalities motor: full strength in upper and lower extremities sensory: intact to light touch, pinprick, temperature b/l reflex: 2+ and symmetric at bicep/tricep/patellar/ankle jerks coordination: no dymetria on either side noted gait: narrow based, stable on discharge: xxxxxxxxxxx pertinent results: labs on admission: 11:49am blood wbc-7.4 rbc-4.41* hgb-13.6* hct-38.7* mcv-88 mch-30.9 mchc-35.2* rdw-13.2 plt ct-303 11:49am blood neuts-67.2 lymphs-19.9 monos-5.2 eos-7.5* baso-0.2 06:11pm blood pt-12.8 ptt-26.9 inr(pt)-1.1 06:11pm blood glucose-136* urean-12 creat-1.2 na-140 k-3.6 cl-105 hco3-28 angap-11 02:09am blood calcium-9.4 phos-2.6* mg-2.4 labs on discharge: xxxxxxxxxxx ------------------- imaging: ------------------- head ct non-contrast there is a peripherally enhancing lesion, in the right cerebellar hemisphere measuring 2.4 x 2.3 x 3.0 cm, with moderate vasogenic edema extending to the left side of midline, with deformity of the fourth ventricle and mass effect on the fourth ventricle and the right side of the midbrain and pons resulting in mild obstructive hydrocephalus with dilated temporal horns and mild dilatation of the lateral ventricles. the posterior aspect of the lesion has enhancing nodular component. bilateral basal ganglial calcifications are noted. no suspicious lytic or sclerotic lesions are noted. there is mild mucosal thickening of the ethmoid air cells on both sides. the soft tissues of the scalp are unremarkable. impression: 1. 2.4 x 2.3 x 2.0 cm peripherally enhancing lesion, enhancing nodular component posteriorly with moderate vasogenic edema, mass effect on the fourth ventricle and mild obstructive hydrocephalus likely represents a metastatic lesion; less likely possibility of a neoplasm. mri head without and with iv contrast per tumor protocol, is necessary for better assessment of the lesion and to exclude any associated lesions. mri head : findings: there is a heterogeneously enhancing lesion, with central nonenhancing necrotic areas and peripheral nodular enhancement in the right cerebellar hemisphere adjacent to the tentorium, measuring 2.5 x 2.5 x 2.2 cm in the ap, transverse and the cc dimensions. there is moderate vasogenic edema and mass effect on the fourth ventricle, right side of the pons and inferior midbrain along with downward displacement of the cerebellar tonsils on the right side. the edema is seen to extend to the left side of the midline onto the left cerebellar hemisphere as well. no other lesions are noted. there is mild-to-moderate obstructive hydrocephalus, with dilatation of the temporal horns and the lateral ventricles. the extent of dilatation of the ventricles has mildly increased compared to the most recent ct study. the major intracranial arterial flow voids are noted. there is mild mucosal thickening in the ethmoid air cells on both sides. impression: 1. 2.5 x 2.5 x 2.6 cm heterogeneously enhancing lesion in the right cerebellar hemisphere with moderate-to-marked vasogenic edema, mass effect on the fourth ventricle, right side of the pons and the inferior mid brain, along with extension of the edema to the left side of the midline into the left cerebellar hemisphere and downward displacement of the right cerebellar tonsils. mild-to-moderate obstructive hydrocephalus mildly increased compared to the recent ct study. this likely represents metastatic lesion given the history of rectal cancer, less likely a primary neoplasm. neurosurgical consult and when appropriate, stereotactic-guided biopsy can be considered based on the neurosurgical consult. 2. no other lesions noted. brief hospital course: patient was admitted with complaints of ha and dizziness for 1 month. imaging of his head showed a t rt cerebellar mass. he was taken to the or for resection on . there was a good resection of the tumor with a good follow up mri showing removal of the tumor. post-op the patient did well and has an intact neurologic exam. he was kept on a decadron taper. he will follow up with for f/u radiation treatment. medications on admission: fluorouracil, zofran, proclorperazine, lorazepam, tylenol fluorouracil 2.5 gram/50 ml solution 4300 mg via continous infusion over 46 hours. beginning days 1 and 15 of a 28 day cycle. lorazepam 0.5 mg tablet one - two tablet(s) by mouth every 4-6 hours as needed for nausea ondansetron hcl 4 mg tablet one tablet(s) by mouth three times per day as needed for nausea oxycodone-acetaminophen 5 mg-325 mg tablet one-two tablet(s) by mouth every 4-6 hours as needed for pain. do not exceed 10 tablets per day. prochlorperazine maleate 10 mg tablet one tablet(s) by mouth three times per day as needed for nausea discharge disposition: home discharge diagnosis: rt cerebellar mass resection -> final pathology pending discharge condition: neurologically stable discharge 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. if your wound closure uses dissolvable sutures, you must keep that area dry for 10 days. ?????? 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/or 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. ?????? you will need a ct scan of the brain without contrast. * you will be called by dr. for a radiation oncology appointment procedure: other operations on extraocular muscles and tendons other excision or destruction of lesion or tissue of brain diagnoses: secondary malignant neoplasm of brain and spinal cord secondary malignant neoplasm of lung personal history of malignant neoplasm of rectum, rectosigmoid junction, and anus 

Answer: The patient is high likely exposed to