• Maxillofacial Plastic and Reconstructive Surgery
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• v.29 no.1
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• pp.33-41
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• 2007

Bone scan using radioactive isotope can be more effective than conventional X-ray radiograph for finding jaw lesion because it takes an image of the physiologic change of bone. This study is designed to show how available bone scan is able to diagnose jaw lesion better than simple X-ray and CT, as well as to determine a basis of diagnosis for jaw lesion using bone scan. The 77 patients, visiting the Oral & Maxillofacial Surgery, Department of Dankook University Hospital from January 2002. to August 2005. who were diagnosed histopathologically with postoperative malignant tumor, osteomyelitis, and bone infiltrative benign disease. Preoperative X-ray, CT, bone scan were taken and were compared with histopathologic finding. Also to compare specificty of each lesion in bone scan, bone density was measured to compare. The results were as follows. 1. Among the 25 cases of oral malignant tumor of bony invasion, a positive diagnosis associated with histopathologic evaluation, 22 cases(88%) in bone scan, 14 cases(56%) in CT image, and 10 cases40%) in simple X-ray. 2. Among the 31 cases of osteomyelitis, a positive diagnosis associated with histopathologic evaluation, 30 cases(97%) in bone scan, 23 cases(74%) in CT image, and 19 cases(61%) in simple X-ray. 3. Among the 11cases of bone infiltrative benign disease, a positive diagnosis associated with histopathologic evaluation, 11 cases(100%) in bone scan, 10 cases(91%) in CT image, and 6 cases(55%) in simple X-ray. 4. Measurement of bone density in each group showed no statistical significant difference between malignant tumor and osteomyelitis as well as benign bone disease. But, a statistical significance was seen between osteomyelitis and benign bone disease. From this results, bone scan are more sensitive than simple X-ray and CT image in jaw lesion diagnosis, but specificity shows no significant difference. Therefore, it should be suggested that evaluation of bone scan must be carrying out in reference to final histopathologic diagnosis.

• Tuberculosis and Respiratory Diseases
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• v.70 no.1
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• pp.43-50
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• 2011

Background: Open lung biopsy is used for diagnosis of diffuse infiltrative lung diseases (DILD), but it is invasive and relatively expensive procedure. Fluoroscopy-guided cutting needle lung biopsy (FCNLB) has merits of avoidance of admission and rapid diagnosis. But diagnostic accuracy and safety were not well known in the diagnosis of DILD. Methods: We included 52 patients (37 men, 15 women) having DILD on HRCT with dyspnea, except the patients who could be confidently diagnosed with clinical and HRCT findings. FCNLB was performed using 16G Ace cut needle (length 1.5 cm, diameter 2 mm) at the area of most active lesion on HRCT. Final diagnoses were made by the consensus. Results: The mean interval between the HRCT and FCNLB was 4.5 days. Most cases were performed one biopsy during 5~10 minutes. Specific diagnosis was obtained in 43 of 52 biopsies (83%). The most common diagnosis was nonspecific interstitial pneumonia (11 cases) and followed by cryptogenic organizing pneumonia (7 cases), diffuse alveolar hemorrhage and usual interstitial pneumonia (5 cases in each), hypersensitivity pneumonitis (3 cases), tuberculosis and drug induced interstitial pneumonitis (2 cases in each), the others are in one respectively. Mild complication was developed in 9 patients (8 pneumothorax, 1 hemoptysis). Most of complications were regressed without treatment except one case with chest tube insertion for pneumothorax. Conclusion: Fluoroscopy-guided 16 G cutting needle lung biopsy was an useful method for the diagnosis of DILD.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.17 no.2
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• pp.195-201
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• 1995

This is a case report of calcifying aponeurotic fibroma occurred in the right pterygopalatine fossa & ramus area accompanied by adenoid cystic carcinoma of the right sublingual gland of a 44-year-old female. Calcifying aponeurotic fibroma is benign tumor, but it is characterized by poorly marginated, infiltrated growth pattern and a stubborn tendency to local recurrence, but there is no record of malignant transformation or metastasis, and surgical management should be conservative(excision and reexcision). Most cases been reported at the hands and feet, but no reported case occuring in the head region is found in the literature. Adenoid cystic carcinoma is a slow-growing infiltrative tumor with high recurrence rate, and it's treatment requires radical excisin and radiotherapy. Wide surgical excision of tumor, RND and partial resection of mandible were done. And then, immediate mandibular reconstruction was performed by means of reimplantaion technique after autoclaving of the resected bone.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.12 no.1
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• pp.121-126
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• 1990

Primary squamous cell carcinoma occuring in the salivary glands involves a grave prognosis since the tumor exhibit infiltrative properties, metastasizes early and recurs readily. But it is so rare that the clinician may see only a few in a lifetime of practice. The following report describes a case of primary squamous cell carcinoma arising from the submaxillary gland treated by combined therapy including surgery, radiotherapy and hyperthermia. The biologic behavior of the tumor was quite abnormal that immediate recurrence was noticed in two weeks after surgery. The progress was dismal and the disease became overwhelming before long.

• Journal of Korean Neurosurgical Society
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• v.40 no.1
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• pp.47-50
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• 2006

This 51-year-old man suffered from paraparesis of 1-week history. On preoperative images, spinal cord compression by infiltrative vertebral mass was shown at T3 and T4 level. Several months earlier, he underwent surgical resection of left 2nd to 4th ribs, due to painful growing chest wall mass, which was proved to be hepatocellular carcinoma. All available diagnostic procedure failed to uncover origin of malignancy. Operation was followed by adjuvant irradiation and chemotherapy to the vertebral mass, however he only to die in 3 months after operation. This is an extremely rare case of ectopic hepatocellular carcinoma at thoracic vertebrae which showed very aggressive clinical course. Possible pathogenic process is presented and discussed.

• Journal of Korean Neurosurgical Society
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• v.44 no.6
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• pp.405-408
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• 2008

GBM is the most common primary brain tumor, but intraventricular GBM is rare and only few cases have been reported in the literature. The authors report a case of 64-year-old man who had a remote history of previous periventricular intracerebral hemorrhage. Brain computed tomography (CT) and magnetic resonance (MR) imaging showed an intraventricular lesion with inhomogeneous enhancement, infiltrative borders and necrotic cyst, and obstructive hydrocephalus. The patient underwent surgical removal through transcortical route via the bottom of previous hemorrhage site and the final pathologic diagnosis was GBM. We present a rare case of an intraventricular GBM with detailed clinical course, radiological findings, and pathological findings, and the possible origin of this lesion is discussed.

• Korean Journal of Veterinary Research
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• v.57 no.2
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• pp.131-133
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• 2017

A 11-year-old, female Russian Blue cat was presented with anorexia, vomiting, and diarrhea lasting for 3 days. Abdominal ultrasonography revealed a hypoechoic, non-circumferential, and eccentrically formed intestinal loop with altered wall layering and thickening of the tunica muscularis. After surgical resection, histopathologic examination confirmed an infiltrative, round-cell neoplasm composed of sheets and cords of neoplastic mast cells within a fibrotic, edematous stroma. The cat was alive and healthy 6 months after surgery. To the best of our knowledge, this is the first reported case of an intestinal mast cell tumor in a Russian Blue cat in South Korea.

• Imaging Science in Dentistry
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• v.42 no.1
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• pp.61-64
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• 2012

Keratocystic odontogenic tumor (KCOT) is a benign odontogenic tumor with a potentially aggressive and infiltrative behavior. KCOT is most commonly occurred in mandible and demonstrate a unilocular, round, oval, scalloped radiolucent area, while large lesions may appear multilocular. An important characteristic of KCOT is its propensity to grow in an antero-posterior direction within medullary cavity of bone causing minimal expansion. Definitive diagnosis relies on histological examination. In this report, a KCOT that had an expansion both buccal and lingual cortical bone is described including its features in computed tomography and ultrasonographic exams. The lesion was removed surgically via an intraoral approach under local anesthesia and histologically reported as a KCOT.

• The Journal of the Korean dental association
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• v.22 no.11 s.186
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• pp.973-978
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• 1984

The authors observed a case of Burkitt's lymphoma, occurred in the mandible, of 6-year-old female patient who admitted to the Department of Oral Radiology, Kyung Hee University Medical Center. The serial radiograms, clinical findings, and microscopid findings had been taken and obtained following results: 1. In serial radiograms, invasive and infiltrative bone destruction in the both mandibular body region was observed. Perforation and erosion of cortical plate of the mandibular angle area and loss of alveolar lamina dura in involved teeth were also noticed. 2. In microscopic findings, a monotous overgrowth of undifferentiated monomorphic lymphoreticular cells found. Macrophages with and abundant clear cytoplasm are usually found scattered uniformly throughout the tumor, producing the very characteristic 'starry-sky' appearance.

• Investigative Magnetic Resonance Imaging
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• v.19 no.3
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• pp.200-204
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• 2015

Image findings of hepatic lymphoma have been reported as variable, ranging from single or multiple small nodules to diffuse infiltrative patterns. On MRI, most hepatic lymphomas show T1 low signal intensity, T2 high signal intensity. Dynamic imaging reveals a hypointense appearance in the arterial phase, followed by delayed enhancement in the portal venous and transitional phase. In the hepatobiliary phase using a hepatocyte-specific contrast agent (which have recently aided in increasing the access to the focal liver lesions), hepatic lymphoma is known to exhibit low signal intensity. We report a case of hepatic lymphoma, which shows iso-signal intensity on hepatobiliary phase, using gadoxetic acid (Gd-EOB-DTPA).