Radiographic increase in the size of tibial and femoral tunnels has been observed following the reconstruction of the ACL with a bone-patellar tendon-bone autograft. The purpose of this study is to determine if any differences exist in the amount of enlargement of the bone tunnel with the clinical results and to know the factors which affected to the enlargement of the bone tunnels. Total 27 patients were retrospectively reviewed for tunnel enlargement radiographically at one year after operation. Anteroposterior and lateral x-ray were obtained and the tunnel were measured by two independent observers. The measurements were made at the widest part of the tunnel. The distance between tibial interference screw and knee joint line also measured. Correction for magnification was performed by comparing the measured width of the interference screw used for fixation of the graft with its actual width. Statistical analysis was performed with Wilcoxon rank sum test. The radiographic tunnel enlargement was an average of 1.7+/-1.3mm for the femur and 1.9+/-0.8mm for the tibia. The proximal migration of the tibial interference screw was an average of 2.3++/-1.1 mm. There was no statistically significant correlation between the changes in tunnel diameter and either the modified Hughston knee score, Lysholm knee score, or the joint laxity measured by a KT-2000 arthrometer, Lachman test. There were no correlations between the mild proximal migration of the tibial interference screw and the clinical results. Conclusively, the tunnel enlargement and mild proximal migration of the interference screw did not appear to affect the functional outcome adversely. It needs longer follow up for the evaluation of etiology and natural history of this tunnel enlargement.
Anterior Cruciate Ligament Reconstruction ; Autografts ; Femur ; Follow-Up Studies ; Humans ; Joint Instability ; Knee ; Knee Joint ; Natural History ; Patellar Ligament* ; Retrospective Studies ; Tibia ; Transplants*

No abstract available.
Child* ; Humans ; Reye Syndrome*

PURPOSE: To evaluate clinical outcomes of silicone tube intubation according to the site of resistance to lacrimal duct probing in complete or partial nasolacrimal duct obstruction patients. METHODS: This study included 102 eyes of 72 patients who were diagnosed with complete or partial nasolacrimal duct obstruction and who underwent silicone tube intubation. According to the site of resistant to nasolacrimal duct probing, eyes were divided into proximal resistance (Group I), distal resistance (Group II) and both side resistance (Group III). The success rate was estimated based on functional (symptom relief) and anatomical (normalization of tear meniscus) success. RESULTS: The success rates in Group I, Group II, and Group III were 53.1%, 78.8%, and 27.0%, respectively, showing that Group II attained the highest success rate (Pearson chi-square test, p = 0.001). CONCLUSIONS: In cases of only distal resistance to lacrimal probing without dacryocystography, silicone tube intubation should be performed with expectation of good clinical outcomes, even if complete nasolacrimal obstruction was suspected on syringing.
Humans ; Intubation* ; Nasolacrimal Duct ; Silicones*

PURPOSE: To evaluate clinical outcomes of silicone tube intubation according to the site of resistance to lacrimal duct probing in complete or partial nasolacrimal duct obstruction patients. METHODS: This study included 102 eyes of 72 patients who were diagnosed with complete or partial nasolacrimal duct obstruction and who underwent silicone tube intubation. According to the site of resistant to nasolacrimal duct probing, eyes were divided into proximal resistance (Group I), distal resistance (Group II) and both side resistance (Group III). The success rate was estimated based on functional (symptom relief) and anatomical (normalization of tear meniscus) success. RESULTS: The success rates in Group I, Group II, and Group III were 53.1%, 78.8%, and 27.0%, respectively, showing that Group II attained the highest success rate (Pearson chi-square test, p = 0.001). CONCLUSIONS: In cases of only distal resistance to lacrimal probing without dacryocystography, silicone tube intubation should be performed with expectation of good clinical outcomes, even if complete nasolacrimal obstruction was suspected on syringing.
Humans ; Intubation* ; Nasolacrimal Duct ; Silicones*

Laryngeal diseases have a significant impact on quality of life and often require timely and accurate diagnosis for effective management. Conventional methods of diagnosis, such as manual inspection of laryngoscopic images, have limitations in terms of accuracy and efficiency. The integration of artificial intelligence (AI) and machine learning techniques in laryngoscopic image analysis has emerged as a promising approach to enhance diagnostic accuracy, streamline workflow, and improve patient outcomes. This review paper provides an in-depth analysis of the recent advancements in AI-driven laryngoscopic image analysis for the diagnosis of laryngeal diseases, also covering methodologies, challenges, and future prospects.

Primary pulmonary hemangiopericytoma is a rare, potentially malignant tumor and assumes more malignant course than that originated in the soft tissue. It can be asymtomatic until attaining a large size within the lung. We report a case of malignant hemangiopericytoma of the lung in a 29 year old man. It represented as a sharply demarcated, huge homogeneous opaque mass in the right upper lobe. The cytologic and histologic features were that of malignant hemangiopericytoma.

PURPOSE: Mutations in the p53 gene have been recognized in brain tumor, and clonal expansion of p53 mutant cells has been shown to be associated with glioma progression. However, studies on the p53 gene have been limited by the need for fresh frozen tissues. We have tried a method utilizing polymerase chain reaction (PCR) for the direct DNA sequecing of the p53 gene using a single 10 m paraffin-embedded tissue section. We applied this method to detect for p53 gene mutations in exons 5~8 in human astrocytoma utilizing paraffin-embedded tissues. MATERIALS AND METHODS: Twenty paraffin blocks containing tumor were selected from surgical specimens from twenty different cases. Tumors included 10 astrocytomas and 10 anaplastic astrocytomas. Ten controls were also selected among autopsy cases showing normal brain in light microscopy. The tissue section on the stained glass slide was used to guide microdissection of an unstained adjacent tissue section to ensure above 90% of the tumor cell population for p53 mutational analysis. RESULT: Mutation in the p53 gene was identified in 1 of 10 (10%) anaplastic astrocytomas. Mutations in the p53 gene were identified in 1 of 10 cases (10%) by PCR and direct DNA sequencing. Mutation in exon 7 resulting in amino acid substitution was found in one anaplastic astrocytoma (codon 245, GGC-->GAC: glycine-->aspartic acid). Ten control cases, ten astrocytomas and nine anaplastic astrocytomas were confirmed to be negative by direct sequencing of amplified DNA. CONCLUSION: This study demonstrates the feasibility of evaluating p53 gene mutations in archived astrocytoma specimens using PCR and direct DNA sequencing on paraffin sections. Application of this method should facilitate investigation of the role of p53 gene mutations in tumor biology.
Amino Acid Substitution ; Astrocytoma ; Autopsy ; Biology ; Brain ; Brain Neoplasms ; DNA* ; Exons ; Genes, p53* ; Glass ; Glioma ; Humans ; Microdissection ; Microscopy ; Paraffin ; Polymerase Chain Reaction ; Sequence Analysis, DNA*

No abstract available.
Hepatitis B Surface Antigens* ; Hepatitis B* ; Hepatitis* ; Humans ; Prevalence*

No abstract available.
Hepatitis B Surface Antigens* ; Hepatitis B* ; Hepatitis* ; Humans ; Prevalence*

BACKGROUND: Contact immunotherapy using diphenylcyclopropenone (DPCP) has been used in the treatment of alopecia and warts. DPCP seemed to be a promising agent for viral disease including molluscum contagiosum (MCI). OBJECTIVE: The purpose of this study was to evaluate the effect of DPCP immunotherapy on MC in children. METHODS: Twenty three patients with multiple lesion of MC were treated with DPCP immunotherapy. RESULTS: Twelve patients (52.2%) showed cure, and eleven patients (47.8%) showed treatment failure. No severe side effects were seen. CONCLUSION: DPCP immunotherapy may be an effective treatment in children with MC without serious side effects.
Alopecia ; Child ; Humans ; Immunotherapy* ; Molluscum Contagiosum* ; Treatment Failure ; Virus Diseases ; Warts