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  1. Article ; Online: Diagnosis of plexiform schwannoma of the foot in a 66-year-old male: a case report and literature review.

    Ieong, Chon Man / Kong, Soi Chau

    AME case reports

    2020  Volume 4, Page(s) 34

    Abstract: Plexiform schwannoma is a rare tumor in the lower extremity which grows slowly and is noninvasive. The tumor size is usually less than 2 cm. The main affected population of this disease is concentrated on the age group of 20 to 50 years old. In this ... ...

    Abstract Plexiform schwannoma is a rare tumor in the lower extremity which grows slowly and is noninvasive. The tumor size is usually less than 2 cm. The main affected population of this disease is concentrated on the age group of 20 to 50 years old. In this study, we reported a rare case of 66-year-old male with a large soft tissue mass on his right foot with a tumor size larger than 7 cm. The ultrasound was performed and showed circumscribed hypoechoic image, indicating a suspected diagnosis of lipoma. The subsequent MRI showed a multilobulated heterogenous signal on T2WI and STIR sequence with mild enhancement, suggesting hemangiomas. Then the tumor of the patient was removed for pathological examination and the results confirmed the diagnosis of plexiform schwannoma. Patient recovered well and had no recurrence in 9 months after the surgery. CT, MRI, and ultrasound are useful to distinguish these rare tumors from other soft tissue lesions, in contrast, MRI has higher sensitivity and provides more accurate diagnostic information. This case report provides a deep understanding of plexiform schwannoma. In the diagnosis of large soft tissue tumors in the lower extremity of the elderly, attention should be paid to the differential diagnosis of plexiform schwannoma to improve the diagnosis level.
    Language English
    Publishing date 2020-10-30
    Publishing country China
    Document type Case Reports
    ISSN 2523-1995
    ISSN (online) 2523-1995
    DOI 10.21037/acr-20-81
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Evaluation of chest CT and clinical features of COVID-19 patient in Macao.

    Ieong, Chon Man / Xu, Xi / Kong, Soi Chau / Luo, Liangping

    European journal of radiology open

    2020  Volume 7, Page(s) 100275

    Abstract: Purpose: Coronavirus disease-19 (COVID-19) was firstly reported in December 2019 in Wuhan, China and soon after, the number of cases increased rapidly worldwide. As of May 2, 2020, more than 3,000,000 confirmed cases have been reported world. In Macao, ... ...

    Abstract Purpose: Coronavirus disease-19 (COVID-19) was firstly reported in December 2019 in Wuhan, China and soon after, the number of cases increased rapidly worldwide. As of May 2, 2020, more than 3,000,000 confirmed cases have been reported world. In Macao, there were 45 confirmed COVID-19 cases until May 2, 2020.
    Material and methods: In this study, we summarized the radiological features of these cases and analyzed relationship between the clinical characteristics and radiological findings. We retrospectively analyzed the imaging manifestations of the 45 cases with COVID-19 in Macao, focusing on identifying and characterizing the most common radiological findings of COVID-19. We retrospectively analyze the relationship between the clinical features and radiological finding of COVID-19 pneumonia.
    Results: This study showed that chest CT manifestations of COVID-19 were multiple ground-glass densities in both lungs. It is dominated by bilateral peripheral subpleural distribution, which may be accompanied by consolidation, interlobular septa thickening, and adjacent pleura thickening. As the disease progresses, it can manifest as consolidation of the lungs in CT scan. We also found the age, smoking and hypertension may be risk factor for predicting the severity of COVID-19 in radiology.
    Conclusion: COVID-19 should be diagnosed based on the clinical feature, nCoV PCR test and radiological manifestation. The main manifestation of COVID-19 is peripheral ground glass opacity. Age, smoking and hypertension may be used to predict the severity of COVID-19. Chest CT is the important radiological method for screening and detecting COVID-19 patients.
    Keywords covid19
    Language English
    Publishing date 2020-10-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2810314-2
    ISSN 2352-0477
    ISSN 2352-0477
    DOI 10.1016/j.ejro.2020.100275
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Evaluation of chest CT and clinical features of COVID-19 patient in Macao

    Ieong, Chon Man / Xu, Xi / Kong, Soi Chau / Luo, Liangping

    Eur J Radiol Open

    Abstract: Purpose: Coronavirus disease-19 (COVID-19) was firstly reported in December 2019 in Wuhan, China and soon after, the number of cases increased rapidly worldwide. As of May 2, 2020, more than 3,000,000 confirmed cases have been reported world. In Macao, ... ...

    Abstract Purpose: Coronavirus disease-19 (COVID-19) was firstly reported in December 2019 in Wuhan, China and soon after, the number of cases increased rapidly worldwide. As of May 2, 2020, more than 3,000,000 confirmed cases have been reported world. In Macao, there were 45 confirmed COVID-19 cases until May 2, 2020. Material and Methods: In this study, we summarized the radiological features of these cases and analyzed relationship between the clinical characteristics and radiological findings. We retrospectively analyzed the imaging manifestations of the 45 cases with COVID-19 in Macao, focusing on identifying and characterizing the most common radiological findings of COVID-19. We retrospectively analyze the relationship between the clinical features and radiological finding of COVID-19 pneumonia. Results: This study showed that chest CT manifestations of COVID-19 were multiple ground-glass densities in both lungs. It is dominated by bilateral peripheral subpleural distribution, which may be accompanied by consolidation, interlobular septa thickening, and adjacent pleura thickening. As the disease progresses, it can manifest as consolidation of the lungs in CT scan. We also found the age, smoking and hypertension may be risk factor for predicting the severity of COVID-19 in radiology. Conclusion: COVID-19 should be diagnosed based on the clinical feature, nCoV PCR test and radiological manifestation. The main manifestation of COVID-19 is peripheral ground glass opacity. Age, smoking and hypertension may be used to predict the severity of COVID-19. Chest CT is the important radiological method for screening and detecting COVID-19 patients.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #837615
    Database COVID19

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  4. Article ; Online: Evaluation of chest CT and clinical features of COVID-19 patient in Macao

    Ieong, Chon Man / Xu, Xi / Kong, Soi Chau / Luo, Liangping

    European Journal of Radiology Open

    2020  Volume 7, Page(s) 100275

    Keywords covid19
    Language English
    Publisher Elsevier BV
    Publishing country us
    Document type Article ; Online
    ISSN 2352-0477
    DOI 10.1016/j.ejro.2020.100275
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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