1.Comparison between FLAIR Images and T2-weighted Fast Spin-echo Images of Cerebral Territory and Lacunar Infarction.
Mi Hye PAENG ; Hye Young CHOI ; Soo Mee LIM ; Jung Sik LEE
Journal of the Korean Radiological Society 2003;48(1):1-6
PURPOSE: To assess the significance of fluid-attenuated inversion recovery (FLAIR) magnetic resonance (MR) imaging in the diagnosis of intracranial infarctions and to find out differential points between central lacunar infarctions and perivascular spaces. MATERIALS AND METHODS: We consecutively selected 25 cases of territorial infarction in 20 patients, 37 cases of central infarction in 40 patients, and 30 patients with perivascular space. Signal intensity and lesion conspicuity were analyzed and compared between FLAIR and FSE T2-weighted images, and differences in signal intensity between central infarction and perivascular spaces were determined. RESULTS: Lesion conspicuity for FLAIR was better than for T2-weighted images in 12 and 15, worse in 4 and 24, and similar in 9 and 16 of territorial and central infarctions, respectively. In nine cases of territorial and one case of central infarction, there was associated hemorrhage. At FLAIR imaging, perivascular spaces showed a fine round low signal without a peripheral high signal rim in 17 patients but no demonstrable signals in 15. Differential diagnosis of perivascular spaces and central infarction was thus not difficult. CONCLUSION: FLAIR MRI was useful in the diagnosis of infarctions and in differentiating between central small lacular infarctions and perivascular spaces.
Diagnosis
;
Diagnosis, Differential
;
Hemorrhage
;
Humans
;
Infarction
;
Magnetic Resonance Imaging
;
Stroke, Lacunar*
2.Solitary Fibrous Tumor of the Adrenal Gland: A Case Report.
Mi Hye PAENG ; Do Youn KIM ; Byung Chul KANG ; Seung Yon BAEK
Journal of the Korean Radiological Society 2002;47(4):395-398
Solitary fibrous tumor is a rare mesenchymal tumor, usually involving the pleura. Its occurrence in various organs of the body has recently been described; in particular, two cases of solitary fibrous tumor of the adrenal gland have been reported worldwide, but no case has been reported in Korea. We describe a case of solitary fibrous tumor occurring in the left adrenal gland and discovered incidentally at CT.
Adrenal Glands*
;
Korea
;
Pleura
;
Solitary Fibrous Tumors*
3.Pulmonary Tuberculosis Mimicking Pneumonia on CT : Retrospective Analysis of Clinical and CT Features.
Mi Hye PAENG ; Yoo Kyung KIM ; Sung Shin SHIM ; Jung Hyun CHANG ; Jin Hwa LEE ; Hyon Joo KWAG
Tuberculosis and Respiratory Diseases 2003;55(1):31-40
BACKGROUND: A CT scan is a useful modality for the diagnosis and evaluation of disease activity in patients with pulmonary tuberculosis. However, the CT diagnosis of pulmonary tuberculosis is sometimes difficult in patients with an atypical CT pattern, especially with lobar consolidation mimicking pneumonia. The aim of this study was to evaluate the clinical and CT features of pulmonary tuberculosis, simulating pneumonia, from a CT scan. MATERIALS AND METHODS: The clinical and CT features in 21 patients, where the CT diagnosis was pneumonia, or the CT differential diagnosis included pneumonia, were retrospectively analyzed. RESULTS: Of the 21 patients, 6 were immunocompromised, 15 presented with fever or leukocytosis and 15 showed positive sputum smear test for acid fast bacilli. Also, 17 of the 21 patients showed a positive sputum culture test. On the CT scan, consolidation was noted in all patients (100%), volume loss of the involved lobe or segment in 12 (57%), bronchogenic spread in 15 (71%), a cavity in 7 (33%) and bronchial wall thickening also in 7 (33%). The location of the consolidation revealed a relatively even distribution, with no specific predilection site. The other associated pulmonary diseases included ARDS, bronchiectasis, severe pulmonary emphysema, idiopathic pulmonary fibrosis and pulmonary alveolar proteinosis. CONCLUSION: In the immunocompromised patients, or patients with an underlying pulmonary disease, whose CT scans showed pulmonary consolidation, especially in association with findings of bronchogenic spread, a cavity or bronchial wall thickening, meticulous examination for pulmonary tuberculosis is recommended.
Bronchiectasis
;
Diagnosis
;
Diagnosis, Differential
;
Fever
;
Humans
;
Idiopathic Pulmonary Fibrosis
;
Immunocompromised Host
;
Leukocytosis
;
Lung
;
Lung Diseases
;
Pneumonia*
;
Pulmonary Alveolar Proteinosis
;
Pulmonary Emphysema
;
Retrospective Studies*
;
Sputum
;
Tomography, X-Ray Computed
;
Tuberculosis
;
Tuberculosis, Pulmonary*
4.Diagnosis for Pheochromocytoma and Paraganglioma: A Joint Position Statement of the Korean Pheochromocytoma and Paraganglioma Task Force
Eu Jeong KU ; Kyoung Jin KIM ; Jung Hee KIM ; Mi Kyung KIM ; Chang Ho AHN ; Kyung Ae LEE ; Seung Hun LEE ; You-Bin LEE ; Kyeong Hye PARK ; Yun Mi CHOI ; Namki HONG ; A Ram HONG ; Sang-Wook KANG ; Byung Kwan PARK ; Moon-Woo SEONG ; Myungshin KIM ; Kyeong Cheon JUNG ; Chan Kwon JUNG ; Young Seok CHO ; Jin Chul PAENG ; Jae Hyeon KIM ; Ohk-Hyun RYU ; Yumie RHEE ; Chong Hwa KIM ; Eun Jig LEE
Endocrinology and Metabolism 2021;36(2):322-338
Pheochromocytoma and paraganglioma (PPGLs) are rare catecholamine-secreting neuroendocrine tumors but can be life-threatening. Although most PPGLs are benign, approximately 10% have metastatic potential. Approximately 40% cases are reported as harboring germline mutations. Therefore, timely and accurate diagnosis of PPGLs is crucial. For more than 130 years, clinical, molecular, biochemical, radiological, and pathological investigations have been rapidly advanced in the field of PPGLs. However, performing diagnostic studies to localize lesions and detect metastatic potential can be still challenging and complicated. Furthermore, great progress on genetics has shifted the paradigm of genetic testing of PPGLs. The Korean PPGL task force team consisting of the Korean Endocrine Society, the Korean Surgical Society, the Korean Society of Nuclear Medicine, the Korean Society of Pathologists, and the Korean Society of Laboratory Medicine has developed this position statement focusing on the comprehensive and updated diagnosis for PPGLs.
5.Diagnosis for Pheochromocytoma and Paraganglioma: A Joint Position Statement of the Korean Pheochromocytoma and Paraganglioma Task Force
Eu Jeong KU ; Kyoung Jin KIM ; Jung Hee KIM ; Mi Kyung KIM ; Chang Ho AHN ; Kyung Ae LEE ; Seung Hun LEE ; You-Bin LEE ; Kyeong Hye PARK ; Yun Mi CHOI ; Namki HONG ; A Ram HONG ; Sang-Wook KANG ; Byung Kwan PARK ; Moon-Woo SEONG ; Myungshin KIM ; Kyeong Cheon JUNG ; Chan Kwon JUNG ; Young Seok CHO ; Jin Chul PAENG ; Jae Hyeon KIM ; Ohk-Hyun RYU ; Yumie RHEE ; Chong Hwa KIM ; Eun Jig LEE
Endocrinology and Metabolism 2021;36(2):322-338
Pheochromocytoma and paraganglioma (PPGLs) are rare catecholamine-secreting neuroendocrine tumors but can be life-threatening. Although most PPGLs are benign, approximately 10% have metastatic potential. Approximately 40% cases are reported as harboring germline mutations. Therefore, timely and accurate diagnosis of PPGLs is crucial. For more than 130 years, clinical, molecular, biochemical, radiological, and pathological investigations have been rapidly advanced in the field of PPGLs. However, performing diagnostic studies to localize lesions and detect metastatic potential can be still challenging and complicated. Furthermore, great progress on genetics has shifted the paradigm of genetic testing of PPGLs. The Korean PPGL task force team consisting of the Korean Endocrine Society, the Korean Surgical Society, the Korean Society of Nuclear Medicine, the Korean Society of Pathologists, and the Korean Society of Laboratory Medicine has developed this position statement focusing on the comprehensive and updated diagnosis for PPGLs.