Benign osteoblastic lesions are rare bone tumor and they are usually devided into osteoid osteoma & benign osteoblastoma based on their biological behavior. A benign osteoblastoma is prevalent in the spine, with the lamina and pedicle being involved frequently. Neurological abnormalities are more frequent in patients with osteoblastoma, which frequently extend into the neural canal. Relief of pain and neurological recovery is dependent primarily on the degree of tumor removal. We have experienced good result after excision of a benign osteoblastoma at the cervical spine in a 37-year-old patient.
Adult ; Humans ; Neural Tube ; Osteoblastoma* ; Osteoblasts ; Osteoma, Osteoid ; Spine*

From March 1982 to June 1985, Serum FSH, LH and prolactin were taken in 85 normal males, 37 benign prostatic hyperplasia and 7 prostatic carcinomas, Radioimmunoassay resulted in the following findings. 1. Serum FSH is seen to increase steadily with age in both normal subjects and patients with BPH. No difference was found in the value of the FSH between the 2 group. 2. Serum LH is seen to increase sharply after 70 years of age but level of LH in the benign prostatic hyperplasia do not reflect this age related increment. 3. Serum prolactin is seen to remain relatively unchanged in the normal male through adult life. No difference was observed between patients with BPH and normal age-matched control.
Adult ; Gonadotropins* ; Humans ; Male ; Prolactin* ; Prostatic Diseases* ; Prostatic Hyperplasia ; Prostatic Neoplasms ; Radioimmunoassay

The treatment of recurrent supratentorial glioma is one of the most challenging and at the same time one of the oldest problem in neurosurgery, especially in case of multiple recurrence. We have experienced 15-year-old male, multiple recurrent supratentorial glioma patient who was subjected to 6 times of operation, radiation therapy and chemotherapy druing 5 year follow-up period. We reveiewed the literature and discussed about recurrent rate, malignant change, method of management and indication of reoperation in low grade glioma.
Adolescent ; Astrocytoma* ; Drug Therapy ; Follow-Up Studies ; Glioma ; Humans ; Male ; Neurosurgery ; Recurrence ; Reoperation

Mucocele of concha bullosa is rare and can be misdiagnosed as an intranasal tumor mass. We report a case ofmucopyocele of the concha bullosa.
Mucocele*

Extramammary Pager`s disease is a malignant condition. We experienced one case of Paget`s disease of scrotum in 76 years old male patient, The clinical presentation, treatment and prognosis of this lesion in the scrotum are discussed.
Aged ; Humans ; Lymph Nodes* ; Male ; Prognosis ; Scrotum*

PURPOSE: To evaluate the efficacy of a newly designed cassette and film system used to obtain a craniocaudal(CC) image during mammographic examination. MATERIALS AND METHODS: We designed a film-cassette system for use inobtaining a CC image. The merit of this system is that the contact plane between the film and film cassette andthe thoracic wall of the examinee changed from linear to concave, thus including more tissue on the image. Twentywomen examined by screening mammography underwent conventional and new CC plane examinations. The distance fromthe nipple to the posterior margin of the included breast tissue, as seen on CC mammograms, was measured using thetwo techniques, and the difference between the respective results was analyzed by paired t-test. RESULTS: Thedistance from the nipple to the posterior margin was 12.9 +/-1.7cm and 14.5 +/-1.4cm at the lateral portion of theconventional and new CC image, respectively. This distance was thus significantly greater on the new than on theconventional image (p<0.001), but there was no significant difference between their me-dial portions. CONCLUSION:The newly designed cassette and film system used to obtain a craniocaudal image during mam-mography includes morebreast tissue than the conventional system and may be helpful for the mammograph-ic screening and diagnosis ofperipheral breast lesions.
Breast ; Diagnosis ; Mammography* ; Mass Screening* ; Nipples ; Thoracic Wall

PURPOSE: To characterize the CT and MR findings in patients with meningioangiomatosis(MA). MATERIALS AND METHODS: Four patients (18 to 53 years old, two females and two males) with MA were retrospectively reviewed. CTwas used in four cases and MR in three. Pathologic specimens were obtained from all four. RESULT: All lesions were located in the cortical and subcortical areas and showed spotty(n=1), popcornlike(n=2), or gyral(n=1) calcification. The mass were associated with surrounding edema and gliosis. In two patients, lesions were multiple and were accompanied by eccentric cysts. CONCLUSION: MA is a surgically correctable benign disease. Its radiologic characteristics are cortical or subcortical mass with various calcifications, associated peripheral edema and gliosis.
Edema ; Female ; Gliosis ; Humans ; Middle Aged ; Retrospective Studies

PURPOSE: The purpose of this study is to analyze the sonographic features of lipoma of the neck. MATERIALS AND METHODS: The cases of 13 patients (35 to 70 years old, nine males and four females) with lipoma of the neck were retrospectively reviewed. Lipomas were confirmed pathologically in six patients, and by CT and MR in seven. RESULT: Lipomas were well-defined in 11 cases (85%), and elliptical shaped masses in 12 (92%) with the longest diameter parallel to the skin surface. As compared with adjacent muscles, 54% of all lipomas (n=7) were hyperechoic, 15% (n=2) were isoechoic and 31% (n=4) were hypoechoic. In 11 cases (85%), lipomas were insinuated into intermuscular space or were found between muscle and adjacent organs. CONCLUSION: The sonographic feature of lipoma of the neck are a well-defined elliptical shaped mass parallel to the skin surface, with linear echogenic lines and either insinuated into intermuscular space or lying between muscle and adjacent organs. The echogenicity of the mass varied.
Aged ; Deception ; Humans ; Lipoma* ; Male ; Muscles ; Neck* ; Retrospective Studies ; Skin ; Ultrasonography*

PURPOSE: This study was designed to determine the embolic effect of PVA particles of various sizes on the cerebral artery of a cat and to determine the appropriate particle size for embolization. MATERIALS AND METHODS: A total of 21 cats were divided into three groups according to the PVA particle size injected: group I(n=7), embolized with 45-150 micrometer PVA; group II(n=7), with 150-250 micrometer PVA; and group III(n=7), with 350-500 micrometer PVA. PVA particles were slowly injected into the left common carotid artery of each cat, and T2-weighted coronal MR images were obtained 24 hours after injection. During histologic examination of brain sections we analyzed the size, number of occluded vessels, and the ischemic changes caused by the particles. RESULTS: On T2 weighted images, areas of high signal intensity (infarction) were observed in four of the seven cats (57%) in group Iand in two of the seven (29%) in group II. High signal intensity was not found in group III. The mean percentage of areas of high signal intensity was 11.86 +/-1 . 37 % in group Iand 5.18 +/-1 . 77% in group II( P <0.05). During histologic examination, occlusion of the distal branches of the anterior cerebral (ACA) and/or the middle cerebral arteries(MCA) by PVA particles was observed in all seven cats (100%) in group I, and in four of the seven cats (57%) in group II. No group IIIcat showed occlusion of the distal branches of the ACA and/or MCA. The mean caliber of occluded vessels was 175 micrometer in Group Iand 258 micrometer in Group II. The mean number of occluded vessels seen on all slide sections was 14 in Group I and 5 in Group II. CONCLUSION: Small PVA particles had a greater cerebral embolic effect than did those which were medium or large. For the induction of embolic infarction in cat brain, PVA particles 45-150 micrometer in size are appropriate.
Animals ; Brain ; Carotid Artery, Common ; Cats* ; Cerebral Arteries* ; Infarction ; Particle Size* ; Polyvinyl Alcohol* ; Polyvinyls*

PURPOSE: This study was designed to determine the embolic effect of PVA particles of various sizes on the cerebral artery of a cat and to determine the appropriate particle size for embolization. MATERIALS AND METHODS: A total of 21 cats were divided into three groups according to the PVA particle size injected: group I(n=7), embolized with 45-150 micrometer PVA; group II(n=7), with 150-250 micrometer PVA; and group III(n=7), with 350-500 micrometer PVA. PVA particles were slowly injected into the left common carotid artery of each cat, and T2-weighted coronal MR images were obtained 24 hours after injection. During histologic examination of brain sections we analyzed the size, number of occluded vessels, and the ischemic changes caused by the particles. RESULTS: On T2 weighted images, areas of high signal intensity (infarction) were observed in four of the seven cats (57%) in group Iand in two of the seven (29%) in group II. High signal intensity was not found in group III. The mean percentage of areas of high signal intensity was 11.86 +/-1 . 37 % in group Iand 5.18 +/-1 . 77% in group II( P <0.05). During histologic examination, occlusion of the distal branches of the anterior cerebral (ACA) and/or the middle cerebral arteries(MCA) by PVA particles was observed in all seven cats (100%) in group I, and in four of the seven cats (57%) in group II. No group IIIcat showed occlusion of the distal branches of the ACA and/or MCA. The mean caliber of occluded vessels was 175 micrometer in Group Iand 258 micrometer in Group II. The mean number of occluded vessels seen on all slide sections was 14 in Group I and 5 in Group II. CONCLUSION: Small PVA particles had a greater cerebral embolic effect than did those which were medium or large. For the induction of embolic infarction in cat brain, PVA particles 45-150 micrometer in size are appropriate.
Animals ; Brain ; Carotid Artery, Common ; Cats* ; Cerebral Arteries* ; Infarction ; Particle Size* ; Polyvinyl Alcohol* ; Polyvinyls*