This report describes clinical cases of a palato-gingival groove on a maxillary lateral incisor with associated localized periodontal disease and pulp necrosis. The tooth of the first case was extracted because of severe bone destruction. The palato-gingival groove of the second case was eliminated using a round bur, and the resulting defect was filled with synthetic graft and covered by an absorbable membrane. Both diagnosis and treatment of palato-gingival groove were very difficult and usually extraction of the involved tooth is the treatment of choice, but combined endodontic-periodontic treatment allowed the tooth to be saved.
Dental Pulp Necrosis ; Diagnosis ; Incisor* ; Membranes ; Periodontal Diseases ; Tooth ; Transplants

Background and Objectives: Many patients experience hypothyroidism after lobectomy. The purpose of this study was to investigate the effects of the extent of surgery (isthmus-saving lobectomy vs. isthmus-removing lobectomy) on postoperative hypothyroidism after lobectomy. Materials and Methods: In total, 144 consecutive benign or low-risk papillary thyroid cancer patients with euthyroid status were retrospectively enrolled from January 2016 to June 2018; 100 patients underwent isthmus-saving lobectomy (IS group), and 44 patients underwent isthmus-removing lobectomy (IR group). Thyroid function tests (TSH) were performed at 3, 6, 12, and 24 months after surgery. Levothyroxine was administered to patients with overt hypothyroidism and those with subclinical hypothyroidism who complained of obvious symptoms of hypothyroidism. Results: The TSH level was significantly lower in the IS group at 3 and 6 months after surgery (p=0.049 and 0.026, respectively). Among patients with TSH ＜2 μIU/mL preoperatively, 17 patients (17/66=25.8%) in the IS group had significantly maintained TSH levels at ＜2 μIU/mL compared with 2 patients (2/21=9.5%) in the IR group even after surgery (p=0.039). Postoperative overt hypothyroidism was found in 5 patients (5.0%) in the IS group and 6 patients (13.6%) in the IR group (p=0.048), and the numbers of patients who took medication after the surgery, 10 (10%) and 14 (31.8%), were significantly lower in the IS group (p=0.001). Conclusion Isthmus-saving lobectomy in patients with euthyroid status reduced the incidence of postoperative hypothyroidism and thyroid hormone replacement and helped in maintaining a low TSH level when compared with isthmus-removing lobectomy.

PURPOSE: The prostate-specific antigen (PSA) density has been proposed to distinguish between benign prostatic hyperplasia (BPH) and prostate cancer. It is of importance that patients who take finasteride for their BPH should be taken deep interest in the potential for malignancy. The PSA density after finasteride therapy for 12 months in patients with BPH was investigated. MATERIALS AND METHODS: Sixty-two patients (mean age 64 years) with BPH were enrolled in this study. The PSA densities were calculated before and after 12 months of finasteride therapy. The prostate volumes were measured by transrectal ultrasonography and the PSA was measured by an enzyme immunoassay. RESULTS: After 12 months of the finasteride therapy, the PSA decreased by 45.5%, the prostate volumes by 15.4% and the PSA densities by 30.5% (p >0.01). The PSA density after the finasteride therapy ranged from 0.01 to 0.14 ng/ml/cm3. In 62 patients, the cumulative percent of the PSA densities was 96.8% at 0.11 ng/ml/cm3 or less. In 31 patients over the PSA of 4.0 ng/ml, the cumulative percent of PSA densities also showed the same result. CONCLUSIONS: In most BPH patients treated with finasteride for 12 months, the PSA densities ranged 0.11 ng/ml/cm3 or less.
Finasteride* ; Humans ; Immunoenzyme Techniques ; Prostate ; Prostate-Specific Antigen ; Prostatic Hyperplasia* ; Prostatic Neoplasms ; Ultrasonography

PURPOSE: The purpose of this study was to compare the effects of resiniferatoxin (RTX) and botulinum toxin (BTX) on the bladder detrusor function in a cyclophosphamide (CYP)-induced cystitis rat model. MATERIALS AND METHODS: Sprague-Dawley rats were divided into 5 groups (1: saline treated, 2: CYP and BTX treated, 3: CYP and RTX treated, 4 and 5: CYP treated and sham operated as the counterpart of groups 2 and 3, respectively, with normal saline). 100mg/kg CYP was injected every third day for five weeks. Cystometrograms were performed after the BTX and RTX treatments. RESULTS: 1. The normal control group and the CYP-treated only group. In the CYP-treated group, the time of micturition frequency, the maximal detrusor pressure on the cystometergram (Pvesmax at CMG), the maximal detrusor pressure on the pressure-flow study (Pvesmax at pr/flow) and the episodes of irregular contractions were increased. 2. The CYP-only group and the CYP/BTX or CYP/RTXtreated groups. In the CYP/BTX or CYP/RTX treated groups, the time of micturition frequency, the Pvesmax at CMG, the Pvesmax at pr/flow and the episode of irregular contractions were decreased. 3. The CYP/BTXtreated group and the CYP/ RTXtreated group. There was no statistically significant difference between the two groups regarding micturition frequency, the PvesMax at CMG and the PvesMax at pr/flow, the Dhfo and the episodes of involuntary contractions (p>0.05). CONCLUSIONS: Intravesical administration of BTX or RTX blocked the CYP-induced detrusor overactivity as was shown by the restoration of the micturition frequency, the intravesical pressure and the involuntary contraction episodes to a control level. There was no statistically significant difference between the two groups regarding the urodynamic parameters.
Administration, Intravesical ; Animals ; Botulinum Toxins* ; Cyclophosphamide* ; Cystitis ; Models, Animal ; Rats* ; Rats, Sprague-Dawley ; Urinary Bladder* ; Urination ; Urodynamics

A malignant fibrous histiocytoma is a rare pleomorphic tumor of the soft tissues. Primary retroperitoneal involvement of a malignant fibrous histiocytoma is very rare and often diagnosed in an advanced stage as it has no specific symptoms. Herein, a case of a malignant fibrous histiocytoma involving the retroperitoneum is reported, which was incidentally found in a 74-year-old male, who complained of pain in the right abdomen and thigh.
Abdomen ; Aged ; Histiocytoma, Benign Fibrous ; Histiocytoma, Malignant Fibrous* ; Humans ; Male ; Retroperitoneal Space ; Soft Tissue Neoplasms ; Thigh

Enterovesical fistula is a relatively uncommon complication involving colorectal and pelvic malignancies, intestinal diverticulitis, inflammatory bowel disease, radiotherapy and trauma in Asian countries. A 77-year-old male was referred with complaints of difficult urination, frequency, nocturia and abdominal discomfort. On admission, fever and fecaluria were present. Various diagnostic procedures such as excretory urography, cystography, cystoscopy, rectoscopy and pelvic computed tomography (CT) scan were performed. Under the impression of vesicosigmoidal fistula, segmental resection of the sigmoid colon with partial cystectomy was performed. The histopathology revealed diverticulosis of the sigmoid colon with diverticulitis and development of a vesicosigmoidal fistula.
Aged ; Asian Continental Ancestry Group ; Colon, Sigmoid ; Cystectomy ; Cystoscopy ; Diverticulitis* ; Diverticulum ; Fever ; Fistula* ; Humans ; Inflammatory Bowel Diseases ; Male ; Nocturia ; Radiotherapy ; Urination ; Urography

A case of extrarenal Wilms' tumor, arising in the prostate, with liver metastasis in a 44-year-old male is reported. A literature review indicated that the incidences of Wilms' tumors arising in the extrarenal region are extremely rare, with only one reported case in the literature. The clinical features, and a review of the disease, are briefly discussed.
Adult* ; Humans ; Incidence ; Liver* ; Male ; Neoplasm Metastasis* ; Prostate ; Wilms Tumor*

Acute aortic dissection is a medical emergency requiring prompt diagnosis and management. To our knowledge, there have been no reports associating acute dissection of the aorta with methamphetamine abuse in Korea. The pharmacologic action of methamphetamine is similiar to that of cocaine : both promote release of norepinephrine and prevent norepinephrine uptake. Methamphetamine causes sudden, sharp increase in both the pulse wave and the blood pressure by causing both tachycardia and hypertension. Some studies have reported vasculitic lesions associated with methamphetamine abuse. We experienced a case of a 37 year old man with history of intravenous methamphetamine abuse who developed a dissection of the entire aorta and infarction of the right kidney, diagnosed by transthoracic echocardiography and computed tomography. He didn't have history of hypertension, the evidence of Marfan's syndrome, or other connective tissue disease. The two dimensional echocardiography demonstrated a intimal flap in the aorta.
Adult ; Aorta* ; Blood Pressure ; Cocaine ; Connective Tissue Diseases ; Diagnosis ; Echocardiography ; Emergencies ; Humans ; Hypertension ; Infarction ; Kidney ; Korea ; Marfan Syndrome ; Methamphetamine* ; Norepinephrine ; Tachycardia

The aim of this study was to evaluate the radiopacity and cytotoxicity of three resin-based (AH 26, EZ fill and AD Seal), a zinc oxide-eugenol-based (ZOB Seal), and a calcium hydroxide-based (Sealapex) root canal sealers. Specimens, 10 mm in diameter and 1 mm in thickness, were radiographed simultaneously with an aluminum step wedge using occlusal films, according to ISO 6876/2001 standards. Radiographs were digitized, and the radiopacity of sealers was compared to the different thicknesses of the aluminum step wedge, using the Scion image software. Using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, the cytotoxicity of each material was determined in immortalized human periodontal ligament (IPDL) cells. The results demonstrated that EZ fill was the most radiopaque sealer, while Sealapex was the least radiopaque (p < 0.05). AH 26, AD Seal and ZOB Seal presented intermediate radiopacity values. All the materials evaluated, except for Sealapex, presented the minimum radiopacity required by ISO standards. The cell viabilities of resin-based root canal sealers were statistically higher than that of other type of root canal sealers through the all experimental time. Further, EZ fill showed statistically lower cell viability in 24 and 48 hours compared to AD Seal and in 72 hours compared to all other resin-based root canal sealers. However, there was no correlation between the radiopacity and cytotoxicity of three resin-based root canals sealers (p > 0.05). These results indicate that resin-based root canal sealer is more biocompatible and has advantage in terms of radiopacity.
Aluminum ; Calcium ; Cell Survival ; Dental Pulp Cavity* ; Humans ; Periodontal Ligament ; Zinc

OBJECTIVE: Uveitis is the most common extra-articular manifestation occurring in patients with ankylosing spondylitis (AS). This study examined the characteristics of uveitis in patients with AS using a questionnaire survey. METHODS: A questionnaire-based survey was given to patients enrolled in an AS registry at a rheumatology clinic in a tertiary hospital between September 2015 and December 2015. The patients responded to several questions and sub-questions related to uveitis. RESULTS: A total of 750 patients participated in the survey. The number of patients diagnosed with uveitis in the ophthalmology department was 218 (29%). The most common symptoms in patients with uveitis were ocular injection (61%), eye pain (54%), and decreased visual acuity (51%). Interestingly, 91 of the 532 patients (17%) who had not been diagnosed with uveitis before also experienced similar symptoms, such as tearing, ocular injection, and eye pain. The number of patients who experienced a flare of uveitis more than once a year was 109 (50%), and 124 patients with uveitis responded that the treatment of AS had no significant effect on the prevention of uveitis recurrence. CONCLUSION: The clinical characteristics of uveitis that patients experience was investigated through surveys. Because uveitis in patients with AS is not well diagnosed and treated, active screening for suspected symptoms and the prevention of a recurrence is needed.
Eye Pain ; Humans ; Korea ; Mass Screening ; Ophthalmology ; Recurrence ; Rheumatology ; Spondylitis, Ankylosing ; Surveys and Questionnaires ; Tears ; Tertiary Care Centers ; Uveitis ; Visual Acuity