1.Development of Crohn's Disease during Etanercept Treatment in Juvenile Idiopathic Arthritis.
Journal of Rheumatic Diseases 2014;21(6):340-342
No abstract available.
Arthritis, Juvenile*
;
Crohn Disease*
;
Etanercept
2.Idiopathic Noncirrhotic Portal Hypertension: An Appraisal.
Hwajeong LEE ; Aseeb Ur REHMAN ; M Isabel FIEL
Journal of Pathology and Translational Medicine 2016;50(1):17-25
Idiopathic noncirrhotic portal hypertension is a poorly defined clinical condition of unknown etiology. Patients present with signs and symptoms of portal hypertension without evidence of cirrhosis. The disease course appears to be indolent and benign with an overall better outcome than cirrhosis, as long as the complications of portal hypertension are properly managed. This condition has been recognized in different parts of the world in diverse ethnic groups with variable risk factors, resulting in numerous terminologies and lack of standardized diagnostic criteria. Therefore, although the diagnosis of idiopathic noncirrhotic portal hypertension requires clinical exclusion of other conditions that can cause portal hypertension and histopathologic confirmation, this entity is under-recognized clinically as well as pathologically. Recent studies have demonstrated that variable histopathologic entities with different terms likely represent a histologic spectrum of a single entity of which obliterative portal venopathy might be an underlying pathogenesis. This perception calls for standardization of the nomenclature and formulation of widely accepted diagnostic criteria, which will facilitate easier recognition of this disorder and will highlight awareness of this entity.
Diagnosis
;
Ethnic Groups
;
Fibrosis
;
Humans
;
Hypertension, Portal*
;
Liver
;
Risk Factors
3.Erratum: Correction of Ethics Statement: Metastatic Insulinoma Presenting as a Liver Cyst
Hua LI ; Tony El JABBOUR ; Ankesh NIGAM ; Hwajeong LEE
Journal of Pathology and Translational Medicine 2019;53(6):415-415
We found an error in our published article.
4.The Risk of Malignancy in Korean Patients with Rheumatoid Arthritis
Yonsei Medical Journal 2019;60(2):223-229
PURPOSE: To investigate the overall cancer risk and risk for specific cancers in rheumatoid arthritis (RA) patients in Korea by comparing cancer incidence between RA patients and the general population. MATERIALS AND METHODS: Individuals diagnosed with RA between 1996 and 2009 who underwent treatment at the Daegu Catholic University Medical Center were retrospectively examined. 1885 patients with RA were included in the analyses. Occurrence of cancer and death during follow up was ascertained by linking medical records to the Korean Central Cancer Registry and national death certificates. For comparing cancer incidence between RA patients and general population, standardized incidence ratios (SIR) were calculated. The 95% confidence intervals (CIs) of SIRs were calculated using the shortcut method introduced by Vandenbroucke. RESULTS: The total follow-up time was 10218.9 person-years. During follow up, 100 patients (31 men and 69 women) were diagnosed with cancer. Both men and women had greater risks of having malignancy, although cancer risk was greater in men. Men showed increased risks of lung cancer (SIR=5.46, 95% CI: 2.60–9.36) and leukemia (SIR=16.7, 95% CI: 1.58–47.9). Women showed increased risks of thyroid cancer (SIR=1.75, 95% CI: 1.02–2.68), cervical cancer (SIR=3.65, 95% CI: 1.65–6.42), non-Hodgkin's lymphoma (SIR=6.47, 95% CI: 2.04–13.4), and gallbladder cancer (SIR=3.87, 95% CI: 1.01–8.60). Disease-modifying anti-rheumatic drugs usage and cancer were not related: the relative risks of developing malignancy were not elevated for each medicine. CONCLUSION: The overall cancer incidence was increased in Korean men and women with RA. Increased risk of specific malignancy differed according to sex.
Academic Medical Centers
;
Antirheumatic Agents
;
Arthritis, Rheumatoid
;
Daegu
;
Death Certificates
;
Female
;
Follow-Up Studies
;
Gallbladder Neoplasms
;
Humans
;
Incidence
;
Korea
;
Leukemia
;
Lung Neoplasms
;
Lymphoma, Non-Hodgkin
;
Male
;
Medical Records
;
Methods
;
Retrospective Studies
;
Thyroid Neoplasms
;
Uterine Cervical Neoplasms
5.Pediatric Bacterial and Aseptic Meningitis in Daegu.
Saeyoon KIM ; Eung Bin LEE ; Sun Young PARK ; Sanghoon KIM ; Youngho YANG ; Hwajeong KANG ; Soonhak KWON
Journal of the Korean Child Neurology Society 2014;22(1):12-16
PURPOSE: The aim of this study was to investigate the clinical characteristics and causative organisms of meningitis in the Daegu region and seek a useful tool for the early prediction of bacterial meningitis in children. METHODS: We retrospectively reviewed the medical records of 115 pediatric patients diagnosed with bacterial or aseptic meningitis at Yeungnam university hospital in Daegu from March 2012 to July 2013. We evaluated their clinical symptoms, laboratory findings, clinical courses, bacterial meningitis scores and complications. RESULTS: The subjects included 106 with aseptic meningitis and 9 with bacterial meningitis. At the time of visit, fever was the most frequent symptom, followed by headache, vomiting and neck stiffness. In cerebrospinal fluid (CSF) analysis, white blood cell (WBC) count were higher in the bacterial meningitis group (1423.8+/-1980.4 vs. 120.0+/-161.6 mg/dL). Mean CSF protein was 219.4+/-183.6 mg/dL in bacterial meningitis and 42.4+/-27.0 mg/dL in aseptic meningitis (P <0.001). Bacterial meningitis score (BMS) were higher in the group with bacterial meningitis. Abnormal radiological findings were found in 44% of the group with bacterial meningitis. CONCLUSION: Although the clinical features between the groups were similar, the CSF analysis revealed significant differences statistically. Furthermore, BMS could be helpful to predict bacterial meningitis in children. During the outbreak of aseptic meningitis, it might reduce unnecessary hospital admissions and antibiotic treatments.
Cerebrospinal Fluid
;
Child
;
Daegu
;
Fever
;
Headache
;
Humans
;
Leukocytes
;
Medical Records
;
Meningitis
;
Meningitis, Aseptic*
;
Meningitis, Bacterial
;
Neck
;
Retrospective Studies
;
Vomiting
6.Inflammation and tissue remodeling contribute to fibrogenesis in stricturing Crohn’s disease: image processing and analysis study
Mustafa Erdem ARSLAN ; Rupinder BRAR ; Lianna GOETZ ; Dipti KARAMCHANDANI ; Michael W. MIKULA ; Kyle HODGE ; Hua LI ; Sangtae AHN ; Hwajeong LEE
Journal of Pathology and Translational Medicine 2022;56(5):239-248
Background:
Inflammation and structural remodeling may contribute to fibrogenesis in Crohn’s disease (CD). We quantified the immunoexpression of calretinin, CD34, and calprotectin as a surrogate for mucosal innervation, telocytes (interstitial cells playing a role in networking), and inflammation, respectively, and correlated them with bowel alterations in stricturing CD.
Methods:
Primary resection specimens for ileal CD (n = 44, 31 stricturing CD, 13 inflammatory CD) were identified. Left-sided ulcerative colitis and trauma cases were used as controls. Proximal and distal margin and middle (diseased) sections were stained for calretinin, CD34, and calprotectin. Microscopic images were captured from the mucosa (calretinin), submucosa (calprotectin), and myenteric plexus (CD34), and the immunostaining was quantified using image processing and analysis. Bowel thickness at the corresponding sections were measured and correlated with the amount of immunoexpression.
Results:
A total of 2,037 images were analyzed. In stricturing CD, submucosal alteration/thickening at the stricture site correlated with calprotectin staining and inversely correlated with calretinin staining at the proximal margin. Muscularis propria alteration/thickening at the stricture site correlated with mucosal calretinin staining at the proximal margin. Submucosal alteration/thickening at the proximal margin correlated with calretinin and CD34 staining at the proximal margin and inversely correlated with CD34 staining at the stricture site. Calretinin immunostaining at the distal margin was significantly higher in stricturing CD than the controls.
Conclusions
Inflammation and tissue remodeling appear to contribute to fibrogenesis in stricturing CD. Increased mucosal calretinin immunostaining distal to the diseased segment could be helpful in diagnosing CD in the right clinical context.
7.Metastatic Insulinoma Presenting as a Liver Cyst
Hua LI ; Tony El JABBOUR ; Ankesh NIGAM ; Hwajeong LEE
Journal of Pathology and Translational Medicine 2019;53(2):148-151
No abstract available.
Insulinoma
;
Liver
8.Mucocele of the rectal stump: mucinous cystic neoplasm with low-grade dysplasia simulating low-grade appendiceal mucinous neoplasm
Hasan Basri AYDIN ; Maria FARAZ ; A. David CHISMARK ; Haiyan QIU ; Hwajeong LEE
Journal of Pathology and Translational Medicine 2025;59(2):139-146
Mucoceles, commonly observed in the appendix, are mucin-filled, dilated structures arising from a range of etiologies. Cases associated with dysplastic or neoplastic epithelium can rupture and disseminate within the abdominopelvic cavity. Similar lesions in other parts of the colon are exceedingly rare, with only 16 colonic mucoceles having been reported. The first case of a colonic mucinous neoplasm with dysplasia resembling a low-grade appendiceal mucinous neoplasm involving rectal stump was described in 2016. Here, we present the second such case arising in the rectal stump, identified in a 44-year-old male with extensive surgical history. Microscopic examination revealed low-grade dysplastic epithelium lining the cyst and mucin dissecting into the stroma, without evidence of rupture or extramural mucin. The patient was followed for 16 months without recurrence or peritoneal disease. The exact etiology and outcome of these rare lesions remain unknown, requiring close follow-up.
9.Mucocele of the rectal stump: mucinous cystic neoplasm with low-grade dysplasia simulating low-grade appendiceal mucinous neoplasm
Hasan Basri AYDIN ; Maria FARAZ ; A. David CHISMARK ; Haiyan QIU ; Hwajeong LEE
Journal of Pathology and Translational Medicine 2025;59(2):139-146
Mucoceles, commonly observed in the appendix, are mucin-filled, dilated structures arising from a range of etiologies. Cases associated with dysplastic or neoplastic epithelium can rupture and disseminate within the abdominopelvic cavity. Similar lesions in other parts of the colon are exceedingly rare, with only 16 colonic mucoceles having been reported. The first case of a colonic mucinous neoplasm with dysplasia resembling a low-grade appendiceal mucinous neoplasm involving rectal stump was described in 2016. Here, we present the second such case arising in the rectal stump, identified in a 44-year-old male with extensive surgical history. Microscopic examination revealed low-grade dysplastic epithelium lining the cyst and mucin dissecting into the stroma, without evidence of rupture or extramural mucin. The patient was followed for 16 months without recurrence or peritoneal disease. The exact etiology and outcome of these rare lesions remain unknown, requiring close follow-up.
10.Mucocele of the rectal stump: mucinous cystic neoplasm with low-grade dysplasia simulating low-grade appendiceal mucinous neoplasm
Hasan Basri AYDIN ; Maria FARAZ ; A. David CHISMARK ; Haiyan QIU ; Hwajeong LEE
Journal of Pathology and Translational Medicine 2025;59(2):139-146
Mucoceles, commonly observed in the appendix, are mucin-filled, dilated structures arising from a range of etiologies. Cases associated with dysplastic or neoplastic epithelium can rupture and disseminate within the abdominopelvic cavity. Similar lesions in other parts of the colon are exceedingly rare, with only 16 colonic mucoceles having been reported. The first case of a colonic mucinous neoplasm with dysplasia resembling a low-grade appendiceal mucinous neoplasm involving rectal stump was described in 2016. Here, we present the second such case arising in the rectal stump, identified in a 44-year-old male with extensive surgical history. Microscopic examination revealed low-grade dysplastic epithelium lining the cyst and mucin dissecting into the stroma, without evidence of rupture or extramural mucin. The patient was followed for 16 months without recurrence or peritoneal disease. The exact etiology and outcome of these rare lesions remain unknown, requiring close follow-up.