Authors report a case of giant mucocele at frontal sinus. It was so large that almost whole portion of ipsilateral frontal lobe was compressed. Nevertheless presenting symptom was exceptionally trivial. With brief review of literatures, we discuss the etiology, pathogenesis, and so on.
Frontal Lobe ; Frontal Sinus* ; Mucocele*

No abstract available.
Brain* ; Epilepsy, Frontal Lobe* ; Frontal Lobe*

We have experienced a case of oligodendroglioma which was similar to a falx meningioma. The oligodendroglioma arose in the medial surface(paracentral lobule) of the right frontal lobe and firmly attached to the falx cerebri. The tumor was found in early life(16 year old) and it had no roentgenographic calcification. So histological confirmation was possible after the operation. We report this uncommon oligodendroglioma with a review of literatures.
Frontal Lobe ; Meningioma ; Oligodendroglioma*

No abstract available.
Frontal Lobe* ; Neuropsychological Tests*

No abstract available.
Frontal Lobe ; Infarction

Two cases of tension pneumocephalus follwing surgery are reported. Tension pneumocephalus appears to be another potential complication of the operation and should be considered whenever a patient fail to recover as expected following surgery. Peaking of frontal lobe, mountain appearance of frontal lobe, and air densities at the cisterns are characteristic findings of tension pneumocephalus. Its diagnosis and treatment are easy and simple.
Diagnosis ; Frontal Lobe ; Humans ; Pneumocephalus*

The values for regional cerebral blood flow at rest were obtained from 60 right handed normal Korean adults(48 males, 12 females) with an age range of 24 to 69 years. The results were summarized as follows. 1) Mean rCBF were Fg ; 74.8+/-13.3ml/100g/min., Fw ; 19.2+/-3.1ml/100g/min, Wg ; 44.0+/-5.4% and CBF(inf) ; 39.8+/-7.6ml/100g/min. 2) In normal regional flow distributions throughout each hemisphere, values of Fg, Fw and CBF(inf) were higher in the frontal lobes and lower in the parietal lobes. A trend for higher values for Wg was seen in occipital and temporal lobes and lower values in the frontal lobes of both hemispheres. 3) When normal limits of the interregional variety values were predicted as mean ICV+2 SD(p<0.05), those values were Fg ; 12%, Fw ; 12%, CBF(inf) ; 10%, FFg ; 4% and Wg ; 10% of mean hemispheric rCBF. 4) There was a significant progressive decline of parameters of Fg, CBF(inf) and Wg with advancing age.
Adult* ; Frontal Lobe ; Hand ; Humans ; Male ; Parietal Lobe ; Temporal Lobe

Malignant Meningioma is rare and its initial clinical course tends to be short but otherwise indistinguishable from that of benign meningioma. And although it has been noted that many of them have propensities for invading the dural venous sinuses, the skull, and even extracranial tissues by direct spread, there seems little tendency for these to metastases. The changes of recurrence and eventual death are high in malignant meningioma. Recently we have experienced a case of malignant meningioma involving the right frontal bone and frontal lobe with infiltration to the adjacent structures.
Frontal Bone* ; Frontal Lobe* ; Meningioma* ; Neoplasm Metastasis ; Recurrence ; Skull

Malignant Meningioma is rare and its initial clinical course tends to be short but otherwise indistinguishable from that of benign meningioma. And although it has been noted that many of them have propensities for invading the dural venous sinuses, the skull, and even extracranial tissues by direct spread, there seems little tendency for these to metastases. The changes of recurrence and eventual death are high in malignant meningioma. Recently we have experienced a case of malignant meningioma involving the right frontal bone and frontal lobe with infiltration to the adjacent structures.
Frontal Bone* ; Frontal Lobe* ; Meningioma* ; Neoplasm Metastasis ; Recurrence ; Skull

PURPOSE: To evaluate the usefulness of functional MR imaging (fMRI) for the determination of languagedomi-nance and to assess differences in language lateralization according to activation task or activated area. MATERIALS AND METHODS: Functional maps of the language area were obtained during word generation tasks (noun andverb) and a reading task in ten patients (9 right handed, 1 left handed) who had undergone the Wada test. MRexaminations were performed using a 1.5T scanner and the EPI BOLD technique. The SPM program was employed for thepostprocessing of images and the threshold for significance was set at p<0.001 or p<0.01. A lateralization indexwas calculated from the number of activated pixels in three hemispheric re-gions (whole hemisphere, frontal lobe,and temporoparietal lobe), and the results were compared with those of Wada tests. The results for lateralizationof language area were compared among stimulation tasks and regions and used for calculation of lateralizationindices. RESULTS: During the Wada test, nine patients were left dominant and one patient was right dominant forlan-guage. Language dominance based on activated signals in each hemisphere was consistent with the results of theWada test in 87.5% (verb and noun generation tasks) and 90% (reading task) of patients. Language domi-nancedetermined by activated signals in the frontal lobe was consistent in 87.5%, 75%, and 80% of patients in eachstimulation task (verb generation, noun generation, and reading), respectively. The consistency rate of ac-tivatedsignals in the temporoparietal lobe was 87.5%, 87.5% and 80% of patients in each task. The mean val-ue of thelateralization index, calculated on the basis of activated signals in the temporoparietal lobe was higher thanthat in the hemisphere or frontal lobe. The verb generation task showed a higher lateralization index than thenoun generation or reading task. CONCLUSION: The lateralization index was higher in the verb generation task andin the region of the tem-poroparietal lobe than in other stimulation tasks or regions. fMRI is a potentiallyuseful non-invasive method for the determination of language dominance.
Frontal Lobe ; Hand ; Humans ; Magnetic Resonance Imaging*