• Archives of Plastic Surgery
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• 제37권4호
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• pp.452-456
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• 2010

Purpose: The schwannoma is a benign peripheral nerve tumor arising from the Schwann cell of the nerve sheath. Only 2-8% of schwannomas arise in the hand and wrist. Misdiagnosis is frequent such as ganglion and neurofibroma. This article documents and clarifies the clinical features of schwannomas arising in the hand and wrist, and emphasizes importance of differential diagnosis and meticulous surgical extirpation under magnification. Methods: The author reviewed clinical features of 15 patients with pathologic final diagnosis of schwannoma developed in hand and wrist during the last 12 years from 1998 through 2009. The review included the sex, age of onset, duration, preoperative diagnosis, location, involved nerve, preoperative symptoms and. Postoperative sequelae after surgical extirpation of the lesion with magnification, or without magnification of the surgical fields. Results: The chief complaints were slow growing firm mass in all patients, and followed by pain in 40%, and paresthesia in 40% respectively. The lesions were developed solitarily in 14 patients (93%). The postoperative pathologic diagnosis and preoperative diagnosis were coincided with only in 6 patients (40%). Other preoperative diagnosis were soft tissue tumor in 4 patient (26.6%), and ganglion in 3 patients (20%), and neurofibroma in 2 patients (13%). In all patients who were undergone surgical excision under the fields of magnification, all symptoms were subsided without any sequelae. Meanwhile muscle weakness, paresthesia, hypoesthesia and /or accidental nerve resection developed after surgical excision with naked eye. Conclusion: Schwannoma in hand most commonly appears as a slow growing solitary mass with pain or paresthesia. The chance of preoperative misdiagnosis was 60% in this series. To provide good prognosis and less sequelae, careful and elaborate diagnostic efforts and meticulous surgical excision under the magnification are necessary in management of schwannoma.

• 대한상한금궤의학회지
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• 제6권1호
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• pp.37-54
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• 2014

Objective : The purpose of this paper is to report the effect of three different herb medication based on Shanghanlun(傷寒論) six differential diagnostic system. Methods : According to six differential diagnostic system based on Shanghanlun provisions, they were diagnosed with Taiyang-byung(大陽病), Yangmyung-byung(陽明病), Gwoleum-byung(厥陰病). They took different herb medications more than 6weeks according to their diagnosis. This paper evaluated the results of treatment by pregnancy test result with improvement of symptoms. Results : The symptoms of three patients were improved and became pregnant. Conclusions : This case study suggests that herb medication based on Shanghanlun(傷寒論) six differential diagnostic system have effectiveness on unexplained infertility. And we need to have a diversified and new perspectives in women's position about pregnancy with this system.

• 유체기계공업학회:학술대회논문집
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• 유체기계공업학회 2004년도 유체기계 연구개발 발표회 논문집
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• pp.153-159
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• 2004

We have investigated the feasibility of using differential pressure(pressure drop) of gas turbine meter to diagnose turbine performance degradation caused by mechanical wearing damage and/or dirt buildup or erosion. If the differential pressure between the upstream piping and the throat of a turine meter can be correlated to meter flow rate over the operating range of the meter, then a relatively simple differential pressure measurement in the filed might be used to detect meter performance changes. To test this method, we have conducted two experimental simulation on Straightener Integrated Type(SIT) turbine meter. One is fur dirt buildup on turbine blade, the other is for eccentricity of the blade. Results show that this method provide a reliable measure of performance degradation and is useful maintenance indicator.

• 대한핵의학회지
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• 제24권1호
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• pp.62-73
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• 1990

Recently ultrasound and scintigraphic study are most useful modality for diagnosis of scrotal diseases. They are able to determine the nature, anatomic extent of the lesion, and possible to differential diagnosis of the scrotal lesion. The ultrasound and scintigraphic findings were analyses in 59 patients of confirmed scrotal disease at Seoul Red Cross Hospital from June 1986 to Aug. 1989. The results were as follows. 1) Most patients were below the 30 years old age (69.4%), and most prevalent age was $11\sim30$ Yrs. in trauma, $31\sim40$ Yrs. in inflammation, and $51\sim60$ Yrs. in mass lesion of scrotum. 2) The diagnostic accuracy of scrotal disease was 94.9% in ultrasound and 72% in scintigraphic study. The ultrasound study showed high accuracy in all kind of scrotat disease, but scintigraphy showed only high detection rate in inflammatory disease. 3) Scrotal ultrasound is first choice of study for the diagnosis of scrotal lesion, and useful determine the cystic or solid lesion and anatomic extent of disease. However it can't be differentiate the acute epididymitis with acute testicular torsion. 4) Scrotal scintigraphy is useful study for the diagnosis of acute painful scrotal disease, and showed specific findings in acute epididymitis and acute torsion for differential diagnosis. 5) In consideration of age, history and clinical findings of patient, appropriate study will be chosen firstly in ultrasound and scintigraphy, and combined all of findings of these studies will be helpful for the accurate diagnosis and adequate treatment of scrotal disease.

• 대한한의진단학회지
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• 제12권2호
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• pp.18-26
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• 2008

Purpose : To review studies about voice diagnosis in orieltal medicine Method : The papers reviewed in this study were searched through internet search engines. For chinese studies, China National Knowledge Infrastructure(www.cnki.net) was the main source of the information and the key words for Voice diagnosis studies were "(語聲)", "(聲診)", and (TCM). Conclusions : In Oriental Medicine, There are two ways to research about voices. One way is to research through philological consideration with subjectical and experimental diagnosis & studies as human bowel related in traditional studies. The other way is to research through Computerized Speech Lab(CSL), differential diagnosis for Sasang constitution and disease.

• Journal of Trauma and Injury
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• 제19권1호
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• pp.81-88
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• 2006

Purpose: Pyomyositis is a rare disease in temperature climate region. The diagnosis of pyomyositis is often delayed, and pyomyositis is often misdiagnosed in the emergency department. Methods: The medical records of 11 patients who were diagnosed as having traumatic pyomyositis in the emergency department at Samsung Medical Center in Seoul, Korea, between 2000 and 2006 were reviewed. Their clinical features, such as history, symptoms, clinical findings, duration from onset of symptoms to diagnosis, medical history, laboratory data, results of imaging studies and clinical course were collected. Results: The psoas muscles were most commonly involved. Computer tomography and magnetic resonance imaging aided in accurate diagnosis of the infection and of the extent of involvement. Incision, drainage, and antibiotics therapy eradicated the infectioin in all patients Conclusion: Pyomyositis should be a part of the differential diagnosis for patients with traumatic muscle pain. Radiologic evaluation, such as computer tomography and magnetic resonance imaging, must be considered in the diagnosis of traumatic pyomyositis.

• 한국한의학연구원논문집
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• 제2권1호
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• pp.381-401
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• 1996

The diagnostic requirements were suggested and explained regarding the systems of differentiation of syptoms and signs in the second year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows : -differential diagnosis according to condition of body fluid, differentiation of syndromes according to the state of qi and blood, differential diagnosis according to reletive excessiveness or deficiency of yin and yang(氣血陰陽津液辨證) -differentiation of diseases according to pathological changes of the viscera and their interrelation(臟腑辨證) -analysing and differentiating of febrile diseases in accordance with the theory of the six channels(傷寒辨證) The individual diagnosis pattern was arranged by the diagnostic requirements in the following odor : another name(異名), notion of diagnosis parrern(證候槪念), index of differentiation of syptoms and sings(辨證指標), the main point of diagnosis(診斷要點), analysis of diagnosis pattern(證候分析), discrimination of diagnosis pattern(證候鑑別), a wayof curing a diseases(治法), prescription(處方) , herbs in common use(常用藥物), dieases appearing the diagnosis pattern(常見疾病), documents(文獻調査). This study was carried out on the basis of the Chinese documents and references.

• 셀메드
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• 제14권2호
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• pp.4.1-4.4
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• 2024

The development of clinical reasoning, which is the basis of medical education, is of great importance in medical universities. One of the founders of modern structural clinical reasoning, based on the knowledge of pathological physiology, is the inventor of the stethoscope Rene Laennec (1781-1826). He described the pioneering experience of clinical reasoning in the pages of his treatise A Treatise on the Diseases of the Chest and on Mediate Auscultation, which is of lasting value, since every rookie physicians in his professional development goes through the path of Laennec. Laennec's practice is of great importance for novice physicians since Laennec's treatise contains a diagnostic analysis of the most common clinical cases. Each such analysis demonstrates the algorithm of clinical reasoning. The purpose of this study was to analyze the approaches of clinical reasoning by René Laennec, which made it possible to identify two basic principles. Laennec's diagnostic reasoning involved two principles: pathogenetic analysis of clinical manifestations and a syndrome-based approach to differential diagnosis. These principles help distinguish between diseases with similar symptoms and physical findings are used to demonstrate the practical application of syndrome-based differential diagnosis. These principles can be easily mastered by understanding the pathogenesis of clinical manifestations. Thanks to the pathogenetic basis, the principles of clinical reasoning of Rene Laennec are universal and applicable to the analysis of any signs of the disease: not only physical but also laboratory and instrumental.

• Imaging Science in Dentistry
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• 제43권2호
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• pp.99-104
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• 2013

Purpose: This study was performed to investigate the clinical usefulness of teleradiology in general dental practice. Materials and Methods: Two hundred and seventy five cases were submitted for inquiry to the case presentation board of the website of The Korean Academy of Oral and Maxillofacial Radiology for a 5 year periods. The diagnosis results of those cases were analyzed according to the disease classification, the correlation with the patient's chief complaint, the necessity of additional examinations or treatments, the image modalities, and the number of dentists inquiring. Results: Differential diagnoses of normal anatomic structures were the most frequently submitted cases, covering 15.6% of all cases. Among 275 cases, 164 cases required no additional treatments or examinations. Panoramic radiographs were the most frequently submitted images, accounting for 248 inquiries. The 275 cases were submitted by 96 dentists. Fifty-two dentists wrote one inquiry, and 44 inquired 2 or more times. The average inquiry number of the latter group was 5.0 cases. Conclusion: A teleradiology system in general dental practice could be helpful in the differential diagnosis of common lesions and reduce unnecessary costs.

• Journal of Korean Neurosurgical Society
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• 제58권1호
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• pp.72-75
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• 2015

Dumbbell-shaped spinal extradural cavernous hemangioma is rare. The differential diagnosis of dumbbell-shaped spinal tumors based on magnetic resonance imaging includes schwannoma and lymphoma. Here, we report a dumbbell-shaped spinal extradural cavernous hemangioma with intrathoracic growth on T2-3 in a 64-year-old man complaining of right side infrascapular area back pain with no neurologic deficit. The cavernous hemangioma was resected through combined video-assisted thoracoscopy and laminectomy without a fusion procedure. The patient had tolerable operative wound pain with no neurologic deficit after surgery. Based on magnetic resonance imaging findings and a review of the literature, we discuss cavernous hemangioma among the differential diagnosis of paravertebral dumbbell-shaped spinal tumors and the importance of complete resection.