BACKGROUND/AIMS: Although a small amount of fecal material can obscure significant colorectal lesions, it has not been well documented whether bowel preparation status affects the missing risk of colorectal polyps and adenomas during a colonoscopy. METHODS: We prospectively enrolled patients with one to nine colorectal polyps and at least one adenoma of >5 mm in size at the screening colonoscopy. Tandem colonoscopy with polypectomy was carried out within 3 months. RESULTS: A total of 277 patients with 942 polyps and 714 adenomas completed index and tandem examinations. At the index colonoscopy, 187 polyps (19.9%) and 127 adenomas (17.8%) were missed. The per-patient miss rate of polyps and adenomas increased significantly as the bowel cleansing rate declined from excellent to poor/inadequate on the Aronchick scale (polyps, p=0.024; adenomas, p=0.040). The patients with poor/inadequate bowel preparation were independently associated with an increased risk of having missed polyps (odds ratio [OR], 3.21; 95% confidence interval [CI], 1.13 to 9.15) or missed adenomas (OR, 3.04; 95% CI, 1.04 to 8.88) compared to the patients with excellent bowel preparation. CONCLUSIONS: The risk of missing polyps and adenomas during screening colonoscopy is significantly affected by bowel preparation status. It seems appropriate to shorten the colonoscopy follow-up interval for patients with suboptimal bowel preparation.
Adenoma ; Colonoscopy ; Humans ; Mass Screening ; Polyps ; Prospective Studies

BACKGROUNDS/AIMS: Complete elimination of intrahepatic duct (IHD) stones is difficult and IHD stone disease is frequently associated with various complications, recurrence and sometimes cholangiocarcinoma. Therefore, we analyzed the long-term surgical results and evaluated the management currently considered appropriate. METHODS: Overall 110 patients who had been diagnosed with benign IHD stone disease and who underwent surgical treatment were enrolled in this study. The patients were categorized into three groups according to the type of surgery performed; liver resection (LR) group, intrahepatic duct exploration (IHDE) group and hepaticoenterostomy (HE) group. We compared and analyzed the results of these three groups. RESULTS: The number of cases in the LR group, IHDE group and HE group were 77, 25 and 8 respectively. The LR group required a longer operation time (p=0.000), more frequent transfusion (p=0.028) and had higher morbidity (p=0.049). However, the LR group had a higher clearance rate (90.9%) (p=0.000) than the other groups. In addition, there were a total of 22 cases of IHD stone recurrence during the follow-up, but there was no statistically significant difference among the three groups. The location of IHD stones was related to a risk factor for incomplete stone removal, but not for recurrence. CONCLUSION: The fundamental principle for the treatment of IHD stone disease should be liver resection. However, it can lead to a longer operative time and higher rate of complications than the other procedures. There is also no difference in the IHD stone recurrence rate among the procedures. Therefore, these alternative and minor procedures could also be taken into account for patients with poor preoperative condition.
Cholangiocarcinoma ; Follow-Up Studies ; Humans ; Liver ; Operative Time ; Recurrence ; Risk Factors

PURPOSE: The renin-angiotensin-aldosterone system activation has been suggested as a potential risk factor for renal progression in autosomal dominant polycystic kidney disease (ADPKD). This study was performed to evaluate urinary angiotensinogen as a biomarker of renal progression in ADPKD. METHODS: Patients with estimated glomerular filtration rate (eGFR) > or =30 mL/min/1.73m2 were enrolled in the study. Specimens (blood and urine) and computed tomography (CT) were taken from each subject. The eGFR was calculated by 4-variable MDRD equation and total kidney volume (TKV) was measured from CT images by modified ellipsoid method. Urinary angiotensinogen (AGT) and neutrophil gelatinaseassociated lipocalin (NGAL) were measured by ELISA. The concentration of AGT was adjusted with random urine creatinine (Cr). The association between urinary biomarkers, TKV and eGFR were evaluated. RESULTS: A total of 59 (M:F=31:28) subjects were enrolled in the study and their mean age was 46 years. The eGFR and TKV at the enrollment were 77.3+/-15.6 mL/min/1.73m2 and 1389.8+/-925.1 mL, respectively. Log AGT/Cr was associated with TKV (r2=0.117, p=0.01) in the earlier stage of disease (TKV<3,000 mL). However, it did not show significant correlation with eGFR. Log NGAL was not associated with either TKV or eGFR. Urinary AGT/Cr was closely related to the number of anti-hypertensive medication, TKV, and the presence of albuminuria, although there was no correlation with plasma renin activity or aldosterone level. CONCLUSION: Urinary angiotensinogen may be a useful biomarker of disease progression in ADPKD patients.
Albuminuria ; Aldosterone ; Angiotensinogen ; Biomarkers ; Creatinine ; Disease Progression ; Enzyme-Linked Immunosorbent Assay ; Glomerular Filtration Rate ; Humans ; Kidney ; Lipocalins ; Neutrophils ; Organ Size ; Plasma ; Polycystic Kidney Diseases ; Polycystic Kidney, Autosomal Dominant ; Renin ; Renin-Angiotensin System

It has been reported that IgA nephropathy is associated with alcoholic liver cirrhosis. However, crescentic glomerulonephritis or nephrotic syndrome are relatively rare. We experienced a patient with IgA nephropathy complicated with alcoholic liver cirrhosis who showed favorable clinical outcomes through steroid treatment. A 54-year-old man with alcoholic liver cirrhosis was hospitalized for generalized edema, nephrotic-range proteinuria and azotemia. We performed a renal biopsy and crescentic formations were found in half of the glomeruli. After use of steroid, azotemia and proteinuria improved gradually.
Alcoholics ; Azotemia ; Biopsy ; Edema ; Glomerulonephritis ; Glomerulonephritis, IGA ; Humans ; Immunoglobulin A ; Liver Cirrhosis, Alcoholic ; Middle Aged ; Nephrotic Syndrome ; Proteinuria

We report a case of Caplan's Syndrome, which presented as multiple pulmonary nodules. A 58-year-old male was admitted to hospital due to multiple pulmonary nodules. In addition, the patient presented with multiple arthritis, and dyspnea on exertion. Rheumatoid arthritis had been diagnosed 35 years ago. The patient had worked as a stonemason for 20 years. Computed Tomography (CT) revealed numerous well-defined tiny nodules scattered in both lungs, which was suspicious of miliary tuberculosis or malignancy. The patient was started on antituberculous medications and referred to our hospital. First, a transbronchial lung biopsy was performed, which showed no evidence of granuloma. It was our opinion that the biopsy was insufficient, and a follow-up video-associated thoracoscopy was performed. The pathological report determined necrotizing granulomatous inflammation and silicosis on background. According to imaging studies, pathologic reports, and clinical symptoms, we concluded that the patient had Caplan's syndrome. We controlled his rheumatic medications, and instructed him to avoid exposure to hazardous dust.
Arthritis ; Arthritis, Rheumatoid ; Biopsy ; Caplan Syndrome ; Dust ; Dyspnea ; Follow-Up Studies ; Granuloma ; Humans ; Inflammation ; Lung ; Male ; Middle Aged ; Multiple Pulmonary Nodules ; Silicosis ; Thoracoscopy ; Tuberculosis, Miliary

Brucellosis is a well known systemic, zoonotic disease that can affect many organs. We report a rare case of spondylodiscitis with an epidural abscess caused by brucellosis. The patient was treated surgically for severe pain and concomitant devastating neurological deficit. A diagnosis of spondylodiscitis or an epidural abscess due to brucellosis must be considered when acute back pain, radiating pain and febrile episodes occur, particularly in people in a high risk group.
Back Pain ; Brucellosis ; Discitis ; Epidural Abscess ; Humans

Trichofolliculoma is a rare skin lesion. It is an adnexal tumor of hair follicles, which was first described by Miescher. Trichofolliculoma is a hamartomatous lesion of hair follicle origin, intermediate in differentiation between a hair follicle nevus and trichoepithelioma as classified by Kligman and Pinkus. It usually manifests clinically as a small, slowly growing, well-demarcated, flesh-colored papule on head and neck. The diagnosis is difficult clinically and is based mainly on histopatholigic appearance. It is commonly misdiagnosed as sebaceous cyst, nevus, and basal cell carcinoma. Treatment is by simple excision and recurrence is rare. We report a case of trichofolliculoma of nasal vestibule with a review of literature.
Carcinoma, Basal Cell ; Diagnosis ; Epidermal Cyst ; Hair Follicle ; Head ; Neck ; Nevus ; Recurrence ; Skin

BACKGROUND AND OBJECTIVES: Because of its advantage over the conventional method, power-assisted adenoidectomy has become an increasingly popular procedure in adenoidectomy. The purpose of this paper is to find the best combination of endoscope and microdebrider to achieve the most successful outcome in patients with various configuration of adenoid vegetation. SUBJECTS AND METHOD: One hundred ninety-one patients who underwent adenoidectomy in the department of Otolaryngology at Inje University Seoul Paik Hospital from January 2000 to February 2006 were reviewed by charts and recorded video tapes for the techniques that we applied to these patients. RESULTS: Four different combinations can be created from two different angles of endoscope and microdebrider ; transnasal 0degrees endoscopic guided transnasal adenoidectomy using straight microdebrider (TNTN), transnasal 0degrees endoscopic guided transoral adenoidectomy using curved microdebrider (TNTO), transoral 70degrees endoscopic guided transnasal adenoidectomy using straight microdebrider (TOTN) and transoral 70degrees endoscopic guided transoral adenoidectomy using curved microdebrider (TOTO). TOTO was the most frequent combination for simple adenoid vegetation. However, it is not suitable for removal of adenoid located high in the pharyngeal roof. In this case, we added TNTO to TOTO. The least frequent combined technique was TNTN, which has inherent limitation to use in small sized nares and younger age. In this situation, TOTN is a better alternative to use. CONCLUSION: From six years of experience, we confirmed that endoscopic guided powerassisted adenoidectomy should be performed with proper combination of endoscope and microdebrider based on the location and configuration of adenoid vegetation. The most ideal combination we consistently applied for removal of adenoid is as follows ; first, TNTO, secondly, TOTO. Lastly, TOTN could be useful in selected cases.
Adenoidectomy* ; Adenoids ; Endoscopes* ; Humans ; Otolaryngology ; Seoul

Verruca vulgaris is commonly seen on skin, but extremely rare in other areas, especially in larynx, where it could be not uncommonly misdiagnosed as verrucous carcinoma. In the recent studies, we noted that verruca vulgaris of the larynx is related to human papilloma virus type 6, 11, which is different from human papilloma virus type 2, 4, which is found on skin. Verruca vulgaris of the larynx occurs in old age with the average of 56 years, and it looks white in color on laryngoscopic examination, which is limited to the true vocal cords. It recurs infrequently. Pathologically, it is heavily keratinized and it contains prominent keratohyaline granules and exhibits koilocytosis. We experienced a case of verruca vulgaris of the larynx in a patient with hoarseness lasted for 3 months. So we report this case with a review of literature.
Carcinoma, Verrucous ; Hoarseness ; Humans ; Larynx* ; Papilloma ; Skin ; Vocal Cords ; Warts*

OBJECTIVE: To demonstrate a variety of MR imaging findings of orbital inflammatory pseudotumors with extraorbital extension. MATERIALS AND METHODS: We retrospectively reviewed the MR features of five patients, who were diagnosed clinically and radiologically as having an orbital inflammatory pseudotumor with extraorbital extension. RESULTS: The types of orbital pseudotumors were a mass in the orbital apex (n = 3), diffuse form (n = 2), and myositis (n = 1). The extraorbital extension of the orbital pseudotumor passed through the superior orbital fissure in all cases, through the inferior orbital fissure in two cases, and through the optic canal in one case. The orbital lesions extended into the following areas: the cavernous sinus (n = 4), the middle cranial fossa (n = 4), Meckel's cave (n = 2), the petrous apex (n = 2), the clivus (n = 2), the pterygopalatine fossa and infratemporal fossa (n = 2), the foramen rotundum (n = 1), the paranasal sinus (n = 1), and the infraorbital foramen (n = 1). On MR imaging, the lesions appeared as an isosignal intensity with gray matter on the T1-weighted images, as a low signal intensity on the T2-weighted images and showed a marked enhancement on the post-gadolinium-diethylene triamine pentaacetic acid (post-Gd-DTPA) T1-sequences. The symptoms of all of the patients improved when they were given high doses of steroids. Three of the five patients experienced a recurrence. CONCLUSION: MR imaging is useful for demonstrating the presence of a variety of extraorbital extensions of orbital inflammatory pseudotumors.
Adult ; Cavernous Sinus ; Cranial Fossa, Middle ; Cranial Fossa, Posterior ; Granuloma, Plasma Cell, Orbital/*diagnosis/pathology ; Humans ; *Magnetic Resonance Imaging ; Male ; Middle Aged ; Petrous Bone ; Retrospective Studies