• Title/Summary/Keyword: misdiagnosis

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Abnormal insertion of the anterior horn of medial meniscus to misdiagnosis to horizontal tear - A case report - (횡 파열로 오인하게 하는 내측 반월상 연골 전각부의 비정상적 삽입 - 증례 보고 -)

  • Kim, Dong-Hee;Gwark, Ji-Yong;Park, Jin-Seung;Hwang, Sun-Chul
    • Journal of Korean Orthopaedic Sports Medicine
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    • v.10 no.2
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    • pp.124-128
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    • 2011
  • Many types of meniscal anomalies have been reported. The authors encountered one case of anomalous insertion of the anterior horn of the medial meniscus to the anterior horn of the lateral meniscus, which ran up along the course of the transverse ligament. This anomalous band was detected in MRI of the knee as a horizontal tear of anterior horn of the lateral meniscus but found during the operation as a anomalous insertion of the anterior horn of the medial meniscus. We report the case with a review of the literature.

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A Special Character Parameter Detection of mac Wave for a long-Distance Transmission (장거리 전송을 위한 맥파의 특성 파라미터 검출)

  • 강명구
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.6 no.4
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    • pp.610-615
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    • 2002
  • Being a medium to help understand the status of the whole body including the Five Vital Organs and the Six Viscera such as the heart, the mac is considered to represent the elasticity of the blood vessel and the condition of the bloodstream in the Oriental medicine. A doctor makes a subjective judgment on a patient's conditions based on the information derived from the diagnosis and the medical examination of the mac wave. Thus he or she needs objective records and make a decision based on them in order to prevent misdiagnosis. This paper set out to suggest the ways to detect the particular parameters of the mac wave with the methods to visualize the mac wave interpretation to detect basic documents(causes) of health status judgment in three-dimension and with the simulation.

Clear cell odontogenic carcinoma mimicking a cystic lesion: a case of misdiagnosis

  • Kim, Minkyu;Cho, Eunae;Kim, Jae-Young;Kim, Hyun Sil;Nam, Woong
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.40 no.4
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    • pp.199-203
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    • 2014
  • Clear cell odontogenic carcinoma (CCOC) is a rare jaw tumor that was classified as a malignant tumor of odontogenic origin in 2005 by the World Health Organization because of its aggressive and destructive growth capacity and metastasis to the lungs and lymph nodes. We report a case of a 66-year-old female who had swelling, incision and drainage history and a well-defined unicystic radiolucent lesion that was comparable to a cystic lesion. At first, the patient received decompression, and the lesion size decreased. Three months after decompression, cyst enucleation was performed. The pathologic result indicated that the lesion was CCOC. In this report we emphasize that patients with painful cystic lesions in addition to jaw enlargement and loosening teeth should be considered for the possibility of malignancy.

A Case of Vocal Cord Dysfunction Masqueraded as Exercised-Induced Asthma (운동유발성 기관지천식으로 오인된 성대 기능 이상 1례)

  • Jo, Chang-Lae;Sym, Sun-Jin;Park, Sang-Hyun;Nam, Soon-Yuhl;Koh, Youn-Suck
    • Tuberculosis and Respiratory Diseases
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    • v.52 no.3
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    • pp.265-270
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    • 2002
  • Vocal cord dysfunction (VCD) is respiratory disorder characterized by paradoxical closure of the vocal cord during the respiratory cycle leading to obstructive airway symptoms. The clinical presentation of VCD is often dramatic and its misdiagnosis as asthma or exercise-induced brochospasm(EIB) has led to inappropriate treatment including high dose corticosteroids, intubation, and tracheostomy. Many VCD patients are asymptomatic at rest and require exercise challenge to elicit symptoms and vocal cord abnormalities. The "gold standard" for the diagnosis of VCD remains laryngoscopy or bronchoscopy with direct visualization of paradoxical adduction of the vocal cords. We report a case of exercise-induced Vocal cord masqueraded as exercise-induced asthma unresponsive to corticosteroids. And bronchodilator confirmed by typical bronchoscopic findings with paradoxial adduction of the vocal cords.

Urinary Cytologic Findings of Plasmacytoid Transitional Cell Carcinoma of the Urinary Bladder - A Case Report- (방광의 형질세포양 이행상피암종의 요세포학적 소견 - 1예 보고 -)

  • Park, Mi-Ok;Kim, Yong-Jin;Park, Jae-Bok
    • The Korean Journal of Cytopathology
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    • v.10 no.1
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    • pp.67-71
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    • 1999
  • We report a case of 53-year-old man with plasmacytold transitional cell carcinoma of the urinary bladder, which may be confused with plasmacytoma. The patient initially presented with gross hematuria and dysuria for two months. Cystoscopy and radiologic studios revealed multiple intraluminal protruding masses on the urinary bladder invading perivesical fat tissue. After urinary cytologic examination and cystoscopic biopsy, radical cystectomy and pelvic lymph node dissections were done. Urine cytology showed single cells and poorly cohesive cells with round eccentric nuclei, bi-or multi-nucleation, indistinct nucleoli, coarse chromatin, and abundant basophilic cytoplasm within relatively clear background. The cytologic findings of tumor cells were similar to the plasma cells seen in plasmacytoma. The tumor of the bladder was composed on discohesive, individual cancer cells with diffuse pattern that simulated lymphoma or plasmacytoma. Immunohistochemical and electron microscopic studies clearly established the epithelial nature of the neoplasm. Recognition of this plasmacytoid type of transitional cell carcinoma of the urinary bladder can avoid the misdiagnosis.

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Fine Needle Aspiration Cytology of a Pilomatrixoma Misdiagnosed as Carcinoma - A Case Report - (암종으로 오진하였던 모기질종의 세침흡인 세포학적 소견 - 1예 보고 -)

  • Jung, Ji-Han;Kim, Young-Shin;Lee, Kyo-Young;Kang, Chang-Suk;Shim, Sang-In
    • The Korean Journal of Cytopathology
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    • v.10 no.1
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    • pp.91-96
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    • 1999
  • Sometimes a pilomatrixoma on upper neck can be misdiagnosed as primary salivary gland tumor, skin adnexal tumor or metastatic carcinoma. On fine needle aspiration cytology(FNAC), characteristic features are ghost cells, basaloid cells, and calcium deposits, among which presence of ghost cells seems to be the key to recognize it. Here we present a cytologically misdiagnosed case of pilomatrixoma. A 32-year-old man presented a subcutaneous mass on the right posterior neck. It has grown slowly for 1 year, and was nontender, well circumscribed, hard, and movable mass. An Initial FNAC yielded only monomorphic population of highly mitotic basaloid cells, without anucleated ghost cells, chronic inflammatory cells or foreign-body giant cells, suggestive of a poorly differentiated carcinoma. However, that was inconsistent with patient's clinical findings. For further correct diagnosis, FNAC was repeated, which yielded the basaloid cells and foreign-body giant cells. The diagnosis of pilomatrixoma could be made and the mass was excised. This case demonstrates that the pilomatrixoma should be considered in the differential diagnosis of subcutaneous aspirates containing not ghost cells but a dominant population of basaloid cells.

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The Usefulness of Ultrasound Diagnosis of Acute Tendon Injury in Hand (급성 건 손상 환자에서 초음파의 유용성)

  • Choi, Chang Yong;Lee, Han Jeong;Choi, Hwan Jun;Kim, Mi Sun
    • Archives of Plastic Surgery
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    • v.35 no.6
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    • pp.729-734
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    • 2008
  • Purpose: The evaluation and management of a completely transected tendon of the hand is relatively clear. In most cases, the integrity is assessed by physical examination(eg, broken normal cascade, motion loss) but occasionally, It happens in troubles. because of pain, limited patient cooperation(eg, child, unconscious patient), and other associated injuries(eg, fractures, foreign bodies). Methods: From september 2006 to August 2007, 28 patients were evaluated with real time ultrasonography preoperatively and postoperatively. Twenty eight patients with injured tendon were evaluated using an HDI 5000 Sono CT(Philips Medical Systems, Bothell, WA) machine with a high resolution, 7.5MHz hockey stick linear probe. Dynamic evaluation was performed in real time. Results: Surgery was performed after the ultrasonographic evaluation. Sonographic diagnosis and intraoperative findings were correlated. Ultrasonographic findings show tendon discontinuity, gaps, and fluid collection. Conclusion: We conclude that ultrasonography is helpful in evaluating and managing acute tendon injury. Especially, in cases of completely lacerated tendon, ultrasonography can identify the location of the proximal tendon stump and partial lacerated tendon, ultrasonographic diagnostic tool can decrease misdiagnosis.

Angiolymphoid hyperplasia with eosinophilia attached to the masseter muscle

  • Kwon, Hyo Jeong;Jung, Ee Room;Choi, Jong Yun;Seo, Bommie Florence;Kwon, Ho;Jung, Sung-No
    • Archives of Craniofacial Surgery
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    • v.21 no.5
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    • pp.319-322
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    • 2020
  • Angiolymphoid hyperplasia with eosinophilia (ALHE) is a rare benign vascular tumor. The pathogenesis of ALHE is unknown; however, it may be linked to local trauma. ALHE predominantly occurs in areas of the preauricular region, forehead, and scalp; the masseter area is rarely involved. A 49-year-old man was referred for a mass in the right cheek region that was felt 2 months prior. Physical and imaging examination results suggested the presence of a benign tumor. Thus, surgical excision was performed. Pathologic findings confirmed an unexpected diagnosis of ALHE. This case was interesting, since the mass occurred at an unusual site with a misdiagnosis of an epidermal inclusion cyst.

Common positioning errors in panoramic radiography: A review

  • Rondon, Rafael Henrique Nunes;Pereira, Yamba Carla Lara;do Nascimento, Glauce Crivelaro
    • Imaging Science in Dentistry
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    • v.44 no.1
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    • pp.1-6
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    • 2014
  • Professionals performing radiographic examinations are responsible for maintaining optimal image quality for accurate diagnoses. These professionals must competently execute techniques such as film manipulation and processing to minimize patient exposure to radiation. Improper performance by the professional and/or patient may result in a radiographic image of unsatisfactory quality that can also lead to a misdiagnosis and the development of an inadequate treatment plan. Currently, the most commonly performed extraoral examination is panoramic radiography. The invention of panoramic radiography has resulted in improvements in image quality with decreased exposure to radiation and at a low cost. However, this technique requires careful, accurate positioning of the patient's teeth and surrounding maxillofacial bone structure within the focal trough. Therefore, we reviewed the literature for the most common types of positioning errors in panoramic radiography to suggest the correct techniques. We would also discuss how to determine if the most common positioning errors occurred in panoramic radiography, such as in the positioning of the patient's head, tongue, chin, or body.

Malignant Fibrous Histiocytoma of the Maxilla: A Case Report (상악골에 발생한 악성 섬유성 조직구종 1례)

  • Song, Seung Yong;Kim, Yong Oock;Park, Beyoung Yoon;Tark, Kwan Chul
    • Archives of Plastic Surgery
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    • v.34 no.3
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    • pp.388-391
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    • 2007
  • Purpose: Malignant fibrous histiocytoma (MFH) is mainly a soft tissue sarcoma containing fibroblast-like cells and histiocytic cells. MFH in bone accounts for 5% of all malignant bone tumors. MFH of the maxilla is extremely rare and difficult to diagnose due to its scarcity. Treatment mainstay is a complete surgical excision. Radiation therapy is also available when surgery alone is incomplete. Prognosis is not clear but can be devastating. Authors report one case of MFH developed in the maxilla. Methods: A 24-year-old man firstly diagnosed as fibrous dysplasia based on CT findings. Considering facial contour, partial excision was done. But pathology report confirmed malignant fibrous histiocytoma and secondary wide excision was done including zygoma and grossly all affected area. After surgery, radiation therapy was continued. Results: There are no evidence of tumor recurrence after clinical and radiological treatment. Conclusion: MFH of maxilla is very rare and this can leads to misdiagnosis in many clinicians. Surgeon should differentiate this disease from fibrous dysplasia and pathology and MRI are accurate methods for diagnosis of MFH.