Jin Chang Moon

Chonbuk National University Hospital, Sŏul, Seoul, South Korea

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Publications (7)11.5 Total impact

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    ABSTRACT: Solitary pulmonary nodules (SPNs) can be manifested in a variety of disorders including neoplasms, infection, inflammation, and vascular or congenital abnormalities. In addition, they are often accompanied with other pulmonary pathologic lesions such as consolidations and several pulmonary disorders present as similar pulmonary nodular lesions simultaneously. Diagnostic workup is important for these SPNs; however, many physicians often miss the second diagnosis for multiple pulmonary lesions with SPNs due to lack of clinical suspicion that each pulmonary nodule or pathologic lesion can have each other's diagnosis.Herein, we report 2 cases of coexistence of pulmonary chondroid hamartoma with nontuberculous mycobacterial (NTM) infection presenting as pulmonary nodules and multiple consolidative lesions. A 60-year-old man was admitted for the evaluation of multifocal pulmonary lesions including SPN with chronic exertional dyspnea. Multiple lung tissues were obtained from each lesion through percutaneous transthoracic needle biopsy (PTNB). At the same time, bacteriologic examination was performed using respiratory samples obtained by bronchoscopy. Based on pathologic and microbiologic results, the patient diagnosed as pulmonary chondroid hamartoma with pulmonary NTM infectious disease. In addition, a 56-year-old woman visited for the evaluation of a small SPN. The SPN was resected surgically for the pathologic examination and turned out to be pulmonary chondroid hamartoma. Interestingly, the diagnostic workup revealed that the patient had Lady Windermere syndrome which is one of features for Mycobacterium avium complex (MAC) pulmonary disease. Both patients were treated with the standard antibiotics against MAC as recommended by the ATS/IDSA guideline.This is the first report of 2 patients, as far as we know, that chondroid hamartoma and NTM disease develop simultaneously in the lung. This report emphasizes that physicians should endeavor to confirm the individual diagnosis for the various pulmonary abnormal lesions detected at the same time, if necessary through multifocal biopsies for each lesion.
    Medicine 04/2015; 94(14):e689. DOI:10.1097/MD.0000000000000689 · 4.87 Impact Factor
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    ABSTRACT: We investigated factors associated with the disease progression and development of hepatocellular carcinoma (HCC) in chronic hepatitis B (CHB) patients during long-term oral nucleos(t)ide analog (NA) therapy. This retrospective study included 524 naive CHB patients who received oral NA therapy for more than 48 weeks between January 2003 and December 2007. The primary outcome was 5-year cumulative probability of disease progression and HCC development. Disease progression was defined as cirrhosis development, cirrhotic complications, HCC or liver-related mortality. For the 524 patients, the cumulative probabilities of disease progression and HCC development at 1, 2, 3, 4 and 5 years were 1.1%, 6.3%, 9.0%, 11.6%, and 16.2% and 0.2%, 1.8%, 3.6%, 5.8%, and 9.3%, respectively. In multivariate analysis, age >50 years (hazard ratio [HR], 1.05) and cirrhosis (HR, 2.95) were significant factors for disease progression. Similarly, age >50 years (HR, 1.05), family history of HCC (HR, 5.48), and cirrhosis (HR, 17.16) were significant factors for HCC development. Importantly, longer duration (>12 months) of maintained virological response (<20 IU/mL) reduced the risks of disease progression (HR, 0.19) and HCC development (HR, 0.09). Longer duration of maintained virological response significantly reduces the risk of disease progression or HCC development in CHB patients undergoing long-term oral NA therapy. (Gut Liver, Published online December 5, 2014).
    Gut and liver 12/2014; 9(3). DOI:10.5009/gnl14170 · 1.49 Impact Factor
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    Jin Chang Moon, Sang Wook Kim
    01/2014; 12(1):78-9. DOI:10.5217/ir.2014.12.1.78
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    ABSTRACT: Background/Aims: The frequency of symptomatic acute HAV infections in adulthood are increasing in Korea. This study analyzes the clinical severity in patients with acute HAV infection and investigates risk factors associated with three severe complications: prolonged cholestasis, acute kidney injury, and acute liver failure. Methods: We performed a retrospective analysis of 726 patients diagnosed from January 2006 to December 2010 at three tertiary hospitals in Jeonbuk Province, Republic of Korea with acute HAV infection. Results: In the group of 726 patients, the mean age was 30.3 years, 426 (58.6%) were male, and 34 (4.7%) were HBsAg positive. Severe complications from acute HAV infection occurred as follows: prolonged cholestasis in 33 (4.6%), acute kidney injury in 17 (2.3%), and acute liver failure in 16 (2.2%). Through multivariate analysis, age ≥40 years (OR 2.63, p=0.024) and peak PT (INR) ≥1.5 (OR 5.81, p=0.035) were found to be significant risk factors for prolonged cholestasis. Age ≥40 years (OR 5.24, p=0.002) and female gender (OR 3.11, p=0.036) were significant risk factors for acute kidney injury. Age ≥40 years (OR 6.91, p=0.002), HBsAg positivity (OR 5.02, p=0.049), and peak total bilirubin (OR 1.11, p=0.001) were significant risk factors for acute liver failure. Conclusions: Age ≥40 years, female gender, HBsAg positivity, peak PT (INR) ≥1.5, and peak total bilirubin were significant risk factors for severe complications in acute HAV infections. (Korean J Gastroenterol 2014;63:25-31).
    The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi 01/2014; 63(1):25-31. DOI:10.4166/kjg.2014.63.1.25
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    ABSTRACT: Background and Aim:  Though angiographic embolization (AE) is a type of effective treatment modality for duodenal ulcer bleeding, the optimum time at which to perform the procedure, early or delayed, is unknown. The authors compared the prognosis of early AE (EAE) and delayed AE (DAE) in patients with duodenal ulcer bleeding. Methods:  A total of 54 patients with duodenal ulcer bleeding were evaluated with first-look endoscopy followed by AE. The patients were divided into two groups, the EAE group and DAE group, according to endoscopic attempt to stop the bleeding during the first-look endoscopy. Results:  The success rate of AE, rebleeding rate, and number of patients who underwent surgery was not significantly different between the EAE group and DAE group (91.3% vs. 93.5%, 21.7% vs. 29.0% and 4.3% vs. 16.1%, respectively; p > 0.05). With respect to death and ICU care rate, multivariate analysis showed more favorable results in the EAE group (0% vs. 22.6%, p = 0.016 and 4.3% vs. 57.4%, p = 0.003, respectively). Multivariate analysis also showed that prolonged prothrombin time (PT) > 1.2 INR and the endoscopic attempt were independent factors associated with ICU care. Conclusion:  When the AE was performed early with correction for prolonged PT, the patients with duodenal ulcer bleeding had a more favorable prognosis. © 2012 Journal of Gastroenterology and Hepatology Foundation and Blackwell Publishing Asia Pty Ltd.
    Journal of Gastroenterology and Hepatology 07/2012; 27(11). DOI:10.1111/j.1440-1746.2012.07239.x · 3.63 Impact Factor
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    ABSTRACT: Hemorrhagic fever with renal syndrome (HFRS) is an acute viral disease with fever, hemorrhage and renal failure caused by hantavirus infection. Hantavirus induces HFRS or hantavirus pulmonary syndrome (HPS). HPS progression to a life-threatening pulmonary disease is found primarily in the USA and very rarely in South Korea. Here, we report a case of HFRS and coexisting HPS.
    06/2012; 31(2):118–120. DOI:10.1016/j.krcp.2012.04.318
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    ABSTRACT: Giant cell tumor (GCT) of bone has been described as the most challenging benign bone tumors. The majority of these tumors, classically, are involved in the epiphysis of long bones; however, on rare occasions, the tumors occur in the small bones of hands and feet. Although this disorder is benign, GCTs show a tendency of significant bone destruction, local recurrence and, occasionally, pulmonary metastasis. Approximately 3% of GCTs is known to metastasize to the lung. Herein, the authors describe an extremely rare case of multiple pulmonary metastatic GCTs in a 54-year-old man who presented asymptomatic pulmonary nodular lesions detected incidentally on chest x-ray of routine health checkup. He underwent chemotherapy with adriamycin and cisplatin and achieved nearly complete remission.
    The American Journal of the Medical Sciences 11/2011; 343(2):171-3. DOI:10.1097/MAJ.0b013e31823483e1 · 1.52 Impact Factor