• Title/Summary/Keyword: diffuse

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Dust-scattered H${\alpha}$ halos around H II regions: On the origins of the diffuse H${\alpha}$ emission

  • Seon, Kwang-Il
    • The Bulletin of The Korean Astronomical Society
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    • v.37 no.1
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    • pp.74.1-74.1
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    • 2012
  • It is known that the diffuse H${\alpha}$ halos around bright H II regions are more extended than the dust-scattered halos around point sources and the line ratios [S II] ${\lambda}$6716/H${\alpha}$ and [N II] ${\lambda}$6583/H${\alpha}$ observed outside of bright H II regions are generally higher than those in H II regions. These observational facts have been regarded as evidence against the dust-scattering origin of the diffuse H${\alpha}$ emission and the effect of dust-scattering has been neglected in studying the diffuse H${\alpha}$ emission. In this paper, we find, however, that dust-scattered halos of H II regions should be more extended than those of point sources and is in good agreement with the observed H${\alpha}$ profiles around H II regions. We also found that the observed line ratios [S II]/H${\alpha}$, [N II]/H${\alpha}$, and He I ${\lambda}$5876/H${\alpha}$ in the diffuse regions can be well reproduced with the dust-scattered halos around H II regions which are photoionized by late O- and/or early B-type stars in the interstellar medium with the abundances close to those of the warm neutral medium. Therefore, we conclude that the diffuse H${\alpha}$ emission may originate mostly from the dust-scattering.

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A Case of Microscopic Polyangiitis Presenting As Diffuse Alveolar Hemorrhage (미만성 폐포출혈 양상을 나타낸 현미경적 다발성 혈관염 1례)

  • Seo, Chang-Gyun;Lee, Seung-Hyun;Kim, Sang-Hyun;Kim, Kyung-Chan;Kim, Min-Su;Han, Seung-Beom;Park, Kwan-Kyu;Jeon, Young-June
    • Tuberculosis and Respiratory Diseases
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    • v.53 no.2
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    • pp.202-208
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    • 2002
  • A diffuse alveolar hemorrhage is a rare manifestation in microscopic polyangiitis. Recently we experienced a case of diffuse alveolar hemorrhage associated with microscopic polyangiitis, which was diagnosed with the typical clinical manifestations, ANCA and a renal biopsy. A 71 year old female was admitted complaining of coughing and dyspnea. A chest X-ray, HRCT and BAL revealed a diffuse alveolar hemorrhage. A diffuse alveolar hemorrhage was noted during a bronchoscopy. She also had proteinuria, microscopic hematuria and mild azotemia. The renal biopsy showed necrotic glomerulonephritis without immune complex deposits or granuloma. Under the diagnosis of microscopic polyangiitis, she was treated with steroid pulse therapy, and prednisolone with cyclophosphamide subsequently. She showed marked improvement in the clinical manifestations.

A Bibliography study on the cause & syndrome of diffuse fluid-retention syndrome (일음(溢飮)의 원인(原因)과 증상(症狀)에 관(關)한 문헌적(文獻的) 고찰(考察))

  • Lou, Dong-Su
    • The Journal of Internal Korean Medicine
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    • v.11 no.2
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    • pp.128-136
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    • 1990
  • I Studied some important medical literatures inorder to examine the cause & syndrome of diffuse fluid-retention syndrome and found out some facts as follows ; 1. cause of diffuse fluid-retention syndrome is Hwang Je Nae Kyong(黃帝內經) and so forth six kinds of medicine books are reffered sudden thirst of intestin and stomark cause of disease Golden chamber(金?要略) and so forth fifteen kinds of medicine books are reffered fluid water promote obscesses atributide at four extrenities and unable hidrosis cause of disease Elementary cause for medicine(醫學入門) and so forth kinds of book medicine books are reffered water in four extrenities cause of disease. The classified Medical Records of Famous physicians(名醫類安) reffered rest at wetness earthly cause of disease. 2. syndrome of diffuse fluid-retention syndrome is Golden chamber and so forth nineteen kinds of medicine books are reffered compression and pain of body syndrome of disease. Hwang Je Nae Kyong(黃帝內經) and so forth seven kinds of medicine books are reffered pulse ; the liver-pulse is soft and powder syndrome of disease. The classified Medical Records of Famous physicians(名醫類安) and so forth two kinds at medicine book are reffered general syndrome of disease. Today is reffered edema of four extremites syndrome of disease. The cause & syndrome of diffuse fluid-retention syndrome obtained was as follows ; cause of diffuse fluid-retention syndrome is fluid water promote abscess attributide at four extremities and unable hidrosis and compression and pain body is main syndrome and hyperhidrosis, vertigo, edema of four extremities alternating episodes of chills and fever can guan pulse is sunken and slippery and both chi wiry are represented syndrome of diffuse fluid-retention syndrome.

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Clinical impact of spine magnetic resonance imaging as a valuable prognostic tool for patients with multiple myeloma: a retrospective study

  • Lee, Jung Min;Cho, Hee Jeong;Moon, Joon-Ho;Sohn, Sang Kyun;Park, Byunggeon;Baek, Dong Won
    • Journal of Yeungnam Medical Science
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    • v.39 no.4
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    • pp.300-308
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    • 2022
  • Background: This study investigated the prognostic impact of spine magnetic resonance imaging (MRI) in patients newly diagnosed with multiple myeloma (MM). Methods: We retrospectively evaluated 214 patients who were newly diagnosed with MM between March 2015 and December 2019. The patients were classified into five different infiltration patterns based on spine MRI as follows: (1) normal appearance, (2) focal, (3) diffuse, (4) combined focal and diffuse infiltration, and (5) "salt-and-pepper." Results: Forty patients (18.7%) showed a normal appearance, whereas focal, diffuse, combined focal and diffuse infiltration, and "salt-and-pepper" patterns were identified in 68 (31.8%), 40 (18.7%), 52 (24.3%), and 14 patients (6.5%), respectively. The patients with normal and "salt-and-pepper" patterns were younger than patients with other patterns (median age, 61.6 vs. 66.8 years; p=0.001). Moreover, 63% and 59.3% of patients with normal and "salt-and-pepper" patterns were scored International Staging System (ISS) stage I and revised ISS (R-ISS) stage I, respectively, whereas only 12.5% of patients with other patterns were scored ISS stage I and R-ISS stage I. Patients with normal and "salt-and-pepper" patterns had a better prognosis than those with other patterns, whereas relapse and death rates were significantly higher in patients with focal, diffuse, and combined MRI patterns. Conclusion: Characteristic MRI findings have a significant prognostic value for long-term survival in patients newly diagnosed with MM. In particular, focal, diffuse, and combined focal and diffuse infiltration patterns are unfavorable prognostic factors.

A Case of Pheochromocytoma that Initially Presented as Diffuse Alveolar Hemorrhage (미만성 폐포출혈로 발현한 갈색세포종 1예)

  • Ryu, Dae Sick;Joung, Hyoung Chu;Kim, Mi Hye;Jung, Bock Hyun
    • Tuberculosis and Respiratory Diseases
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    • v.64 no.1
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    • pp.52-56
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    • 2008
  • A pheochromocytoma is a neuroectodermal tumor that originates from the chromaffin cells of the sympathetic system. Typical symptoms or signs are periodic attacks of paroxysmal hypertension, spell, palpitation, headache and sweating. However, the clinical presentation is quite variable. Therefore, an atypical clinical presentation sometimes makes a diagnosis difficult. Hemoptysis as a presenting symptom is very rare in pheochromocytoma. We recently experienced a patient with diffuse alveolar hemorrhage due to pheochromocytoma. A chest PA showed diffuse consolidation and ground glass opacities in both lungs. A chest CT showed diffuse consolidation and ground glass opacities in the central, middle and lower portion predominance of the lungs, sparing the costophrenic angles and apices of the lungs. In Korea, a case of pheochromocytoma that presented initially as massive hemoptysis due to diffuse alveolar hemorrhage has not been previously reported. We report the case with a review of the literature.

Fine Needle Aspiration Cytology of Diffuse Sclerosing Variant of Papillary Carcinoma of the Thyroid - A Case Report - (갑상선의 미만성 경화성 변종 유두상 암종의 세침흡인 세포학적 소견 - 1예 보고 -)

  • Kim, Joon-Mee;Min, Soo-Kee;Chu, Young-Chae;Kim, Mi-Rim;Kim, Kyung-Rae
    • The Korean Journal of Cytopathology
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    • v.11 no.1
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    • pp.47-52
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    • 2000
  • Diffuse sclerosing papillary carcinoma(DSPC), a variant of papillary carcinoma of the thyroid, is characterized by diffuse involvement of one or both thyroid lobes, and histologic features such as prominent sclerosis, intense lymphocytic infiltrate, numerous psammoma bodies, and squamous metaplasia together with the characteristic cytoarchitectural pattern of classical papillary carcinoma. We experienced a case of fine needle aspiration cytologic(FNAC) findings of DSPC, which was confirmed by histologic examination of the thyroidectomy specimens. The patient was 26 years old female who presented with diffuse firm enlargement of the thyroid gland with enlargement of many cervical lymph nodes. FNAC smears showed numerous psammoma bodies, many lymphocytes, metaplastic squamous cells, absence of stringy colloid, and epithelial cells showing classical features of papillary carcinoma, such as nuclear grooves, intranuclear unclusions, and ground glass chromatin pattern.

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The Hemodynamic Effects of Acupuncture on Taechung($LR_3$) on Mammary Tissues of Rat Monitored by Diffuse Optical Imaging (Diffuse Optical Imaging으로 측정한 태충($LR_3$) 자침이 쥐의 유방 조직에 미치는 혈역학적 변화)

  • Cho, Myeong-Rae;Kim, Jae-Gwan
    • Journal of Acupuncture Research
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    • v.27 no.6
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    • pp.59-66
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    • 2010
  • 목적 : 태충($LR_3$)에 자침을 하는 것이 쥐의 유방 조직에 미치는 혈역학적 변화를 측정하기 위하여 diffuse optical imaging 기법을 사용하였다. 방법 : 실험에 사용한 쥐는 자침을 하지 않은 대조군 7마리, 태충에 자침을 한 실험군 8마리로 총 2개의 군으로 나누었다. 몸무게 170g 정도의 건강한 암컷 쥐는 100% 산소와 1.5% isoflurane을 혼합한 것을 이용하여 마취시켰다. 자침은 양 발등의 첫째와 둘째 중족골 사이의 지점인 태충($LR_3$)에 20분간 시행하였다. Beckman Laser Institute and Medical Clinic에서 개발된 modulated imaging system을 이용하여 자침하기 전과 자침하고 있는 동안에 산화혈색소(OHb), 탈산소혈색소(RHb), 총 혈색소(THb)와 조직 산소 포화도($StO_2$)의 영상을 얻었다. 결과 : 실험 결과 태충($LR_3$)에 자침을 한 실험군에서는 대조군에 비하여 유의성이 있는 OHb THb의 감소와 유의성이 없는 RHb의 증가가 나타났다. 결론 : Diffuse optical imaging 기법으로 자침 중에 조직 산소공급과 혈류량의 변화를 확인할 수 있었고, 이는 비침습적으로 자침의 효과를 측정하는 데 활용할 수 있다고 생각한다. 또한 자침으로 인한 유방조직의 혈역학적 조절은 암 검진뿐만 아니라 암 치료에도 다른 치료와 병행하여 활용할 수 있으리라 생각한다.

A Case Report of Secondary Dementia Patient Caused by Diffuse Axonal Injury (미만성 축삭 손상으로 유발된 속발성 치매 환자 1례에 대한 증례 보고)

  • Song, Chang-Hoon;Jeong, Jong-Jin;Oh, Sung-Won;Kim, Soo-Yeon;Lee, Sang-Min;Jung, Myong-Suk;Baek, Tae-Hyun;Lee, Seul-Hee
    • The Journal of Internal Korean Medicine
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    • v.28 no.3
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    • pp.645-654
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    • 2007
  • The purpose of this study is to present a case of secondary dementia caused by diffuse axonal injury. We diagnosed this patient with diffuse axonal injury by using brain computerized tomography(CT) and magnetic resonance imaging(MRI), and also diagnosed secondary dementia based on DSM-IV. To evaluate prognosis of the patient, we used K-DRS(Korean-Dementia Rating Scale) and gave him a written test. As a result of treating this patient with oriental medicine, the K-DRS score increased and the overall clinical symptoms improved. In oriental medicine, case studies of diffuse axonal injury are yet insufficient, hence more clinical studies and researches will be needed.

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A Case of Diffuse Nodular Pulmonary Ossification (미만성 결절성 폐 골화증(Diffuse Nodular Pulmonary Ossification) 1예)

  • Choi, Seung-Ho;Yoon, Ho-Il;Lee, Sang-Min;HwangBo, Bin;Yoo, Chul-Gyu;Lee, Choon-Taek;Kim, Young-Whan;Han, Sung-Koo;Shim, Young-Soo
    • Tuberculosis and Respiratory Diseases
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    • v.46 no.6
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    • pp.856-860
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    • 1999
  • Diffuse pulmonary ossification is rare disease of unknown etiology. Since the first description by Luschka in 1856, about 140 cases have been reported worldwide, but no such case has been reported in Korea yet. We report 40-year-old woman who was diagnosed as diffuse nodular pulmonary ossification on open lung biopsy. She has no respiratory symptoms & physical findings and no previous disease history. She was incidentally found to have multiple pulmonary nodules on roentgenographic examination. Open lung biopsy was done for above lesion and She was proven to have diffuse nodular pulmonary ossification. She was followed by roentgenographic examination and showed no progression.

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