Laser Interstitial Thermal Therapy and Lomustine in Treating Patients With Recurrent Glioblastoma or Anaplastic Astrocytoma

Inclusion Criteria: * Patients must have histologically-proven, recurrent supratentorial grade IV glioblastoma (or grade III IDH-wildtype anaplastic astrocytoma), for which a complete surgical resection is unsafe due to location, shape, or size of the tumor. Diagnosis of recurrence will be established by biopsy and frozen section immediately prior to initiating LITT procedure. If findings on frozen section are not consistent with recurrence (glioblastoma or recurrent IDH-wildtype anaplastic astrocytoma), decision to proceed with LITT procedure will be at the discretion of the neurosurgeon (only patients with histologically-proven recurrent tumor will be evaluable for efficacy). * All patients must sign an informed consent indicating that they are aware of the investigational nature of this study. Patients must have signed an authorization for the release of their protected health information. Patients must be registered prior to treatment on study. * Patients must have a Karnofsky performance score (KPS) \> 60. * Patients must have received standard of care therapy with chemoradiation with temozolomide followed by adjuvant chemotherapy with temozolomide. Patients may have received one additional chemotherapy regimen (other than lomustine) in addition to adjuvant temozolomide prior to study entry (patients at either first or second recurrence are eligible). * In the context of this clinical trial, a lesion suitable for LITT is single, enhancing, supratentorial, at least 2 cm from inner table of skull over the hemispheric convexity, and \> 1 cm, but \< 4 cm in cross-sectional dimension, including thalamic tumor (=\< 3 cm). * Patients must have stable cardiovascular, neurovascular and neurological status, and be considered surgical candidates, as determined by any relevant pre-operative assessments, at the neurosurgeon's discretion. * Patients must not be receiving concurrent anti-tumor treatment and must have recovered from toxicity of prior treatment. Minimum interval required: 1) \> 6 weeks following nitrosourea chemotherapy; 2) \> 4 weeks after recovering from any non-nitrosourea drug or systemic investigational agent; 3) \> 2 weeks after receiving any non-cytotoxic anti-tumor drug; 4) \> 4 weeks after receiving radiation therapy (\> 12 weeks following upfront concurrent chemoradiation); 5) \> 2 weeks following Optune device use. * Patients must not have previously undergone an intracranial LITT procedure. * White blood cell (WBC) \> 3,000/ul (performed within 14 days (+ 3 working days) prior to registration) * Absolute neutrophil count (ANC) \> 1,500/mm\^3 (performed within 14 days (+ 3 working days) prior to registration) * Platelet count of \> 100,000/mm\^3 (may be reached by transfusion) (performed within 14 days (+ 3 working days) prior to registration) * Hemoglobin \> 10 gm/dl (may be reached by transfusion) (performed within 14 days (+ 3 working days) prior to registration) * Serum glutamic-oxaloacetic transaminase (SGOT) and bilirubin \< 2 times upper limit of normal (ULN) (performed within 14 days (+ 3 working days) prior to registration) * Creatinine \< 1.5 mg/dL (performed within 14 days (+ 3 working days) prior to registration) * Women of childbearing potential must have a negative B-Human chorionic gonadotropin (HCG) documented within 7 days prior to registration and must agree to practice adequate contraception as defined below. Non-childbearing potential (i.e., physiologically incapable of becoming pregnant), includes any female who has had: * A hysterectomy * A bilateral oophorectomy * A bilateral tubal ligation * Is post-menopausal: Subjects not using hormone replacement therapy (HRT) must have experienced total cessation of menses for \>= 1 year and be greater than 45 years in age, OR, in questionable cases, have a follicle stimulating hormone (FSH) value \> 40 mIU/mL and an estradiol value \< 40 pg/mL (\< 140 pmol/L). * Subjects using HRT must have experienced total cessation of menses for \>= 1 year and be greater than 45 years of age OR have had documented evidence of menopause based on FSH and estradiol concentrations prior to initiation of HRT. * Childbearing potential includes any female who has had a negative serum pregnancy test within 7 days of study registration, and agrees to use adequate contraception. Acceptable contraceptive methods, when used consistently and in accordance with both the product label and the instructions of the physician, are as follows: * Complete abstinence from sexual intercourse for 14 days before starting treatment, through the treatment, and for at least 1 month after the last dose of temozolomide * Oral contraceptive, either combined or progestogen alone. A second barrier method is required during the first month of treatment with oral contraceptives * Injectable progesterone * Implants of levonorgestrel * Estrogenic vaginal ring * Percutaneous contraceptive patches * Intrauterine device (IUD) or intrauterine system (IUS) with a documented failure rate of less than 1% per year * Male partner sterilization (vasectomy with documentation of azoospermia) prior to the female subject's entry into the study, and this male is the sole partner for that subject * Double barrier method: condom and an occlusive cap (diaphragm or cervical/vault caps) with a vaginal spermicidal agent (foam/gel/film/cream/suppository). Female participants who are lactating should discontinue nursing prior to the first dose of temozolomide and should refrain from nursing throughout the treatment period and for 42 days following the last dose of lomustine. Exclusion Criteria: * Patients must not have received prior treatment with bevacizumab. * Patients must not have had prior treatment of glioblastoma with stereotactic radiosurgery, brachytherapy, or carmustine-impregnated wafers (Gliadel). * Patients must not have symptoms attributed to mass effect of the tumor (despite corticosteroid treatment) that would be better treated with debulking surgery, or wherein surgical debulking in the first 30 days following LITT procedure would be anticipated for symptom management. * Patients unable to undergo MRI are not eligible. * Patients with progression of multifocal tumors or tumors involving the posterior fossa (brainstem and cerebellum) will be excluded, as will patients where the anticipated treatment margin will be within 5 mm of critical intracranial structures (e.g., primary branches of cerebral vessels, dural sinuses, hypophysis or cranial nerves). * Patients may not have undergone previous treatment with lomustine. * Patients must not have any significant medical illnesses that in the investigator's opinion cannot be adequately controlled with appropriate therapy or would compromise the patient's ability to tolerate this therapy. * Patients with a history of any other cancer (except non-melanoma skin cancer or carcinoma in-situ of the cervix), unless in complete remission and off of all therapy for that disease for a minimum of 3 years are ineligible. * Patients must not have active infection or serious intercurrent medical illness. * Patients must not be pregnant/breast feeding and must agree to practice adequate contraception. * Patients must not have uncontrolled hypertension (systolic \>180 mm hg or diastolic \> 100 mg Hg), angina pectoris, cardiac dysrhythmia, or recent (within 6 weeks) intracranial hemorrhage.