• 대한족부족관절학회지
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• 제11권2호
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• pp.192-197
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• 2007

Purpose: The purpose of this study is to present our clinical results after surgical treatment in tarsal tunnel syndrome due to space occupying lesions. Material and Methods: We performed surgical decompression for tarsal tunnel syndrome in 20 patients from July 2004 to February 2007. Out of them, thirteen cases were due to space occupying lesions around the tarsal tunnel. The average age at operation was 51.3 years old and the duration from symptom onset to surgery was 16.5 months. The operation included removal of space occupying lesions and tarsal tunnel decompression. The clinical parameters were pain visual analogue scale (VAS), AOFAS scale, and subjective satisfaction. Results: The ganglion cysts were the most frequent causes (ten cases) and synovial chondromatosis in 1 case, neurofibroma in 1 case, talocalcaneal coalition in 1 case. The average follow-up duration was 14.5 months. The AOFAS scale showed significant improvement from 77.8 to 92.7. The average VAS decreased from 6.4 to 2.2. Seven out of thirteen patients were satisfied with the results. The excellent results were shown in six patients, the good results in one patient, the fair result in three patients and the unsatisfactory results in three patients. Conclusion: Favorable results could be obtained in patients with known etiology. But not all cases with surgical decompression of space occupying lesions showed satisfactory results. We assume that the clinical results were related to the multiple factors, not only well performed surgery but also age, size lesions and duration of symptoms, ect.

• 대한핵의학회:학술대회논문집
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• 대한핵의학회 1972년도 제11차 학술대회
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• pp.66.4-67
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• 1972

• Investigative Magnetic Resonance Imaging
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• 제25권1호
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• pp.43-46
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• 2021

Arachnoid cysts are benign lesions that are formed between the inner and outer layers of the arachnoid, accounting for 1% of all intracranial space occupying lesions. Usually, arachnoid cysts are asymptomatic. It can be symptomatic in case of complication such as intracystic hemorrhage or acute cyst expansion. We present a case of incidentally prediagnosed arachnoid cyst which undergone intracystic hemorrhage combined with ipsilateral SDH in a young male.

• Journal of Chest Surgery
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• 제21권5호
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• pp.863-870
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• 1988

Many varieties of space-occupying lesions can occur in the mediastinum. During the twenty-three-year period 1966-1988, we had experienced the 151 cases of primary mediastinal tumors and cysts at the Thoracic k Cardiovascular Dept., CUMC. The most common histologic types were thymomas and germ cell tumors, followed by neurogenic tumors and lymphomas. Most non-neoplastic lesions were granulomatous lesions and cysts. The mediastinal tumors were often asymptomatic, the malignant tumors in 35.4%, the benign tumors and cysts in 72.8% of the cases. The most common symptom was pain, which occurred in one-fourth of the patients. The most useful diagnostic method was X-ray examination of the chest. However, a final diagnosis could usually be made only at operation. Nine malignant tumors[30.0%] were excised radically, 17[56.7%] palliatively and 4[13.3%] were only biopsied. Almost all benign tumors except tuberculous lymphadenitis were radically excised. Fourteen patients received postoperative radiation therapy and 17 received chemotherapy. The postoperative complications were developed in 15[11.7%] and hospital mortality was 0.8%.

• Journal of Korean Neurosurgical Society
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• 제30권5호
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• pp.622-626
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• 2001

Acute disseminated encephalomyelitis(ADEM) is an uncommon immune-mediated inflammatory demyelinating disorder that typically affects the white matter of the central nervous system. Radiologic findings of acute disseminated encephalomyelitis are not pathognomomic. The differential diagnosis is always difficult. Occasionally, the clinical features, radiological and histopathological findings of patients with acute disseminated encephalomyelitis mimic the brain tumor or other space occupying lesions. The authors report a 6-year-old girl who presented with right hemiparesis two days after nausea and vomiting. Brain MRI of the patient revealed non-enhanced multiple cystic lesions in subcortical white matter of both cerebral hemisphere with prominent edema. One of the cystic lesions was resected to differentiate with metastatic tumor or inflammatory disease such as abscess and confirmed as the acute disseminated encephalomyelitis via various immunohistochemical stains. Pertinent literature is reviewed with discussion on this uncommon ADEM associated with multiple cystic lesions.

• Imaging Science in Dentistry
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• 제43권1호
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• pp.17-23
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• 2013

Purpose: The purpose of this study was to assess cone-beam computed (CBCT) sialography imaging in the detection of different changes associated with lesions of salivary glands. Materials and Methods: This study consisted of 8 cases with signs and symptoms from salivary gland lesions. Conventional sialography using digital panoramic and lateral oblique radiographs and CBCT sialography were performed for each subject. The radiographs were evaluated by 3 radiologists independently of each other. The results were compared between conventional sialography and CBCT sialography in the evaluation of various lesions associated with the salivary glands. Results: There was an agreement between the radiologists in interpreting the lesions that affected salivary glands with both techniques. The detection of the presence of stones or filling defects, stenosis, ductal evagination, dilatation, and space occupying lesions was 83% for conventional sialography compared with CBCT sialography. CBCT sialography was superior to conventional sialography in revealing stones, stenosis, and strictures, especially in the second and third order branches. Conclusion: It would be advisable to perform CBCT sialography in cases of obstructive salivary gland diseases for better demonstration of the ductal system of the gland.

• 대한핵의학회지
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• 제3권2호
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• pp.55-63
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• 1969

In the past few years, scintigraphy has become increasingly important in clinical practice, and the use of a color-printing technique has permited a more accurate interpretation of the scan image. Our liver color scintigrams consist of 51 hepatomas, 35 liver cirrhosis, 22 liver abscessis, 10 hepatitis and other 13 cases of the liver diseases which were clinically arid pathologically diagnosed at Sevarance Hospital, Yonsei Univ., since Feb. 1969 through Sept. 1969. These scintigrams have been analized in terms of various pathologic morphology, such as size, shape, margin of the liver, distribution of radioactivity, and shape of the space occupying lesions. The results are as follows: 1. Enlargement of the liver was the most common finding in the diseased livers. The Rt. lobe enlargement was particularly prominent in the liver abscess. 2. Irregular distribution of radioactivity in the liver (so called mottling) was present in 78% of hepatoma, while it was seen only in 31% of liver abscesses. 3. Liver cirrhosis tends to show perihilar accumulation of the isotope (57%). 4. The deformity of the lower most angle of the Rt. lobe, and the Lt. lateral margin of the Lt. lobe was also impressive throughout the cases ($74{\sim}95%$ of all diseased livers). 5. The frequency of visualization of the spleen was influenced by the size of space occupying lesions and the amount of functioning liver. 6. Differentiation between the liver abscess and hepatoma seems to be possible on scintigram, when shape and margin of defect and patterns of distribution of radioactivity in the remaining liver are clearly demonstrated.

• 대한핵의학회지
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• 제18권1호
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• pp.33-37
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• 1984

The accuracy of liver scanning was evaluated in 124 cases with primary or metastatic liver tumors, including a few benign localized lesions and in 277 cases without such lesions. All findings were histologically verified by operation or autopsy. 1) Of the 124 cases with space occupying lesions(SOLs) in the liver, 92 cases were detected by liver scan(sensitivity 74.2%). And of the 277 cases without such lesions, 266 cases were evaluated as no SOLs(specificity 96.0%). The overall accuracy was 89.3%. 2) The authors evaluated the liver scan sensitivity in each of different diseases with SOLs. The sensitivity was 88.9% in primary liver carcinoma, 82.4% in primary liver carcinoma with cirrhosis, 88.7% in liver abscess, and 100% in hemangioma. The sensitivity was low in metastatic tumor(65.8%). 3) The sensitivity of the SOLs in the right lobe was 53.3% and left lobe 27.7%. In the interlobar area, detectability was 41.7%. 4) The authors compared the sensitivity of the liver scan with the size of the SOLs. The smaller the size of the SOLs, the lower the detectability. In the pachy lesions, the sensitivity was 46.6%.

• Annals of Clinical Neurophysiology
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• 제13권2호
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• pp.87-92
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• 2011

Background: Tarsal tunnel syndrome (TTS) is an entrapment neuropathy that occurs in the ankle. Previous studies reported that this disease was due to physiologic factors and structural lesions in the ankle or foot. The authors investigated the causative factors of TTS and their frequency via operative findings. The diagnostic value of MRI was also evaluated based on the concordance between the operative findings and the MRI findings. Methods: This study was performed in retrospective by using medical record of the patients who underwent operations with TTS from August 2003 to May 2010. Physical examination, nerve conduction study, and MRI were conducted on patients who visited department of neurology or orthopedic surgery due to pain and sensory abnormality of their ankle and foot. Results: 34 patients underwent the operation. Ganglion accounted for the largest portion of the operative findings. In addition, varicose veins, intrinsic foot muscle hypertrophy, tenosynovitis, and fascia thickening were mainly observed. Of the 34 patients, 33 patients underwent pre-operative MRI, of whom 18 patients showed MRI findings consistent with the operative findings. Conclusions: Space-occupying lesions accounted for the majority of the causative factors in TTS patients who underwent the surgical treatment. In this study, the MRI appeared useful for identifying causes of TTS.

• Journal of Korean Neurosurgical Society
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• 제29권8호
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• pp.1098-1102
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• 2000

Pituitary abscess is a very rare disorder, since antibiotics therapy has become widely available. Clinically and radiologically, the preoperative diagnosis of pituitary abscess is difficult because of its features which may be identical to those of any space-occupying lesions of the sella turcica. A combination of clinical features, such as meningitis, paranasal sinusitis and panhypopituitarism with intrasellar cystic lesion with homogeneous ring enhancement on computed tomography or magnetic resonance image should raise the suspicion of a pituitary abscess. Drainage of the abscess through trans-sphenoidal approach, appropriate antibiotics therapy, endocrine assessment and hormonal replacement should bring complete recovery to the patient. The authors review the literature and report two cases of primary pituitary abscess.