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: history of present illness: the patient is a 56 year-old gentleman with a history of olfactory groove meningioma. he also has a history of non hodgkin's lymphoma status post chemotherapy and a resection of lymphoma in the neck. allergies: no known drug allergies. physical examination: blood pressure 137/83. pulse 83. in general, he was a young gentleman in no acute distress. his heent examination pupils are equal, round and reactive to light. extraocular movements intact. oropharynx was clear. no lymphadenopathy. no thyromegaly. his chest was clear to auscultation. cardiovascular regular rate and rhythm. no murmurs, rubs or gallops. abdomen no masses, nontender, nondistended. positive bowel sounds. extremities warm. no clubbing, cyanosis or edema. neurologically awake, alert and oriented times three. cranial nerves ii through xii are intact. he had a nonfocal examination. hospital course: he underwent a bifrontal craniotomy for excision of olfactory groove meningioma. postoperatively, he was monitored in the intensive care unit. postoperatively, his vital signs were stable. he was afebrile. he was awake, alert and oriented times three. moving all extremities with good strength. no drift. face was symmetric. he had some right orbital edema. no evidence of cerebral spinal fluid leak. he remained stable. he had a repeat mri and was transferred to the regular floor on postoperative day number two. he was seen by physical therapy and occupational therapy and found to be safe for discharge to home on postoperative day number four weaning off decadron, tolerating a regular diet and voiding spontaneously. his incision remained clean, dry and intact. he will follow up with dr. in the brain clinic on and follow up with to far five on monday for staple removal. condition on discharge: stable. , m.d. dictated by: medquist36 procedure: excision of lesion or tissue of cerebral meninges other repair of cerebral meninges bone graft to skull diagnoses: personal history of other lymphatic and hematopoietic neoplasms benign neoplasm of cerebral meninges 

Answer: The patient is high likely exposed to