• 대한후두음성언어의학회지
• /
• 제26권2호
• /
• pp.137-140
• /
• 2015

Neurofibroma is characterized as a benign, slow growing neoplasm, originating from Schwann cells or fibroblast in peripheral nerve sheaths. It may appear as a solitary tumor or have multiple localizations in von Recklinghausen disease. They are commonly found in the gastrointestinal tract and laryngeal neurofibromas are extremely rare, accounting for only 0.03 to 0.1% of benign tumors of the larynx. The aryepiglottic fold and arytenoid are the common site of occurrence for laryngeal neurofibroma, because the branch of the superior laryngeal nerve is involved. We present a case of solitary plexiform neurofibroma arising from the laryngeal surface of epiglottis in a 55-year old female who found the lesion incidentally. We removed the tumor completely by transoral laser surgery and no recurrence was found after 7 months. The case of solitary neurofibroma arising from laryngeal surface of epiglottis has not been reported in Korea. We report this case regarding the diagnosis and treatment with review of literatures.

• Tuberculosis and Respiratory Diseases
• /
• 제53권2호
• /
• pp.227-233
• /
• 2002

저자들은 객혈을 주소로 내원한 62세 여자환자에서 굴곡성 기관지내시경 조직검사상 확진된 기관지 유두종 1예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

• Tuberculosis and Respiratory Diseases
• /
• 제47권4호
• /
• pp.549-556
• /
• 1999

Benign pulmonary tumors are rare entities, and among them bronchial lipomas are the most uncommon. Up to date, about 80 cases have been reported in the English literature. But, the bronchial lipoma with extrabronchial growth causing middle lobe syndrome and pneumonia is extremely rare. Bronchial lipomas, mainly arising from normal fatty tissue of the proximal portion of the lobar or segmental bronchi, are histologically benign. But if diagnosis and treatments are delayed, they can produce extensive pulmonary parenchymal damage and irreversible brochiectasis distally. So whenever possible, the treatment of choice is resection by means of bronchoscopy via early diagnosis. But if endoscopic removal is not possible because the distal end of the tumor could not be visualized by fiberoptic bronchoscopy or if the nature of the tumor is unclear, surgery is necessary, with lobectomy or pneumonectomy being required in most cases due to the extensively damaged pulmonary parenchyma. We present a case of bronchial lipoma with extrabronchial growth, with a review of the literature and report of an unusual case.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• 제18권1호
• /
• pp.144-152
• /
• 1996

저자는 desmoplastic ameloblastoma의 문헌 고찰 및 일례의 치험례를 통하여 이 병소의 독특한 임상, 방사선학적 및 병리조직학적 소견을 보고하는 바이다. 1. 임상적 특징으로는 매우 드물게 발생하며, 일반적인 법랑모세포종에 비해 상악 및 악골의 전방부에 호발한다. 2. 방사선학적 특징으로는 경계가 불명확한 방사선 투과상의 병소로, 방사선 불투과상이 혼재되어 나타나 오히려 섬유골화병소와 유사하다. 3. 병리조직학적 특징으로 종양상피도는 압축되어져 모양이 불규칙하고 가장자리세포층은 일반적인 원주세포대신 입방체 또는 편평세포로 이루어져 있고 중심부는 방추형이나 다각형의 세포들이 특징적으로 나타나며 극세포화가 관찰된다. 이들은 교원섬유가 풍부한 결합조직 형성을 동반한다. 4. 재발률은 일반적인 법랑모세포종과 유사할 것으로 사료된다.

• Tuberculosis and Respiratory Diseases
• /
• 제40권6호
• /
• pp.709-713
• /
• 1993

저자들은 최근 폐에 발생한 다발성 결절을 전산화 단층 유도하 경피적 세침 생검으로 진단하고, 스테로이드 요법으로 완치된 염증성 가종양 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

• Journal of Microbiology
• /
• 제45권3호
• /
• pp.187-192
• /
• 2007

REOviruses (Respiratory Enteric Orphan viruses) are ubiquitous, non-enveloped viruses containing 10 segments of double-stranded RNA (dsRNA) as their genome. They are common isolates of the respiratory and gastrointestinal tract of humans but are not associated with severe disease and are therefore considered relatively benign. An intriguing characteristic of reovirus is its innate oncolytic potential, which is linked to the transformed state of the cell. When immortalized cells are transfected in vitro with activated oncogenes such as Ras, Sos, v-erbB, or c-myc, they became susceptible to reovirus infection and subsequent cellular lysis, indicating that oncogene signaling pathways are exploited by reovirus. This observation has led to the use of the virus in clinical trials as an anti-cancer agent against oncogenic tumors. In addition to the exploitation of oncogene signaling, reovirus may further utilize host immune responses to enhance its antitumor activity in vivo due to its innate interferon induction ability. Reovirus is, however, not entirely benign to immunocompromised animal models. Reovirus causes so-called "black feet syndrome" in immunodeficient mice and can also harm neonatal animals. Because cancer patients often undergo immunosuppression due to heavy chemo/radiation-treatments or advanced tumor progression, this pathogenic response may be a hurdle in virus-based anticancer therapies. However, a genetically attenuated reovirus variant derived from persistent reovirus infection of cells in vitro is able to exert potent anti-tumor activity with significantly reduced viral pathogenesis in immunocompromised animals. Importantly, in this instance the attenuated, reovirus maintains its oncolytic potential while significantly reducing viral pathogenesis in vivo.

• Journal of Chest Surgery
• /
• 제39권3호
• /
• pp.244-247
• /
• 2006

과립 세포종은 흔치않은 양성 종양으로 주로 피부, 혀, 유방에 생기는 것으로 알려져 있다. 이 종양은 각기 다른 장기에 동시 다발적으로도 생길 수 있으며, 한 장기에 여러 군데 생기기도 하는 것으로 알려져 있다. 기관지 계통에서의 빈도는 잘 알려져 있지 않으며, 폐에 발생할 확률은 현재까지 보고된 증례가 약 100예에 지나지 않을 정도로 드문 질환으로 알려져 있다. 폐렴증상을 주소로 33세의 남자환자가 내원 후 기관지 내시경 검사에서 기관지 내 종양이 발견되어 실시한 조직검사상 과립 세포종으로 확인되었다. 환자는 좌측 주 기관지 절개 후 종양 적출술을 받은 다음 기관지 단-단 봉합술을 받았다. 퇴원 후 현재까지 특별한 재발의 징후 없이 1년째 외래 추적 관찰 중이다.

• 대한두경부종양학회지
• /
• 제13권1호
• /
• pp.40-44
• /
• 1997

Background: Lateral rhinotomy and medial maxillectomy, an en bloc resection of the medial maxillary sinus, ethmoid sinus with the lamina papyracea, medial orbital floor, and lacrimal fossa-duct, have been advocated for lateral nasal wall neoplasms as a standard approach method. Objective: This report was conducted to investigate the clinical efficacy of lateral rhinotomy and medial maxillectomy for lateral nasal wall neoplasms. Materials and Methods: We retrospectively analyzed clinical data of 31 patients who were treated at department of otolaryngology-head and neck surgery, Catholic university of Korea, school of medicine between 1990 and 1996. Results: Twenty five patients had benign lesions(80.6%). By far, the largest percentage was inverted papillomas(80%, 20/25). Of the six malignant lesions(19.4%), 33.3%(2/6) was squamous cell carcinoma and other lesions were metastatic renal cell carcinoma, adecarcinoma, transitional cell cacinoma, and hemangiopericytoma. There were a 4% recurrence for benign tumors(1/25), 5% especially for inverted papilloma(1/20), and 50% for malignant neoplasms(3/6). The overall complication rate was 9.7%. Conclusion: Despite the various approach for treatment of lateral nasal wall neoplasms including inverted papilloma, we continue to advocate a lateral rhinotomy and medial maxillectomy as the treatment of choice.

• Parasites, Hosts and Diseases
• /
• 제57권1호
• /
• pp.21-25
• /
• 2019

Trichomoniasis is the most common curable sexually-transmitted infection. Most Trichomonas vaginalis-infected men are asymptomatic and can remain undiagnosed and untreated, and this has been thought to result in chronic persistent prostatic infection. Chronic inflammation is regarded as the major factor in the pathogenesis and progression of benign prostatic hyperplasia (BPH) and prostatic cancer (PCa). The aim of this study is to identify seropositivity to T. vaginalis in men with prostate tumors (BPH or PCa) visited to Hanyang University Hospital. A total of 183 men were enrolled between October 2013 and November 2014. They consisted of 139 with BPH (mean age: $64.0{\pm}0.07$) and 44 with prostate cancer (mean age: $73.3{\pm}0.18$). We carried out ELISA to identify the seropositivity to T. vaginalis. Mixed lysate antigen extracted from 8 strains of T. vaginalis was used in the ELISA. Also 58 male outpatients visited to Health Promotion Center in Hanyang University Hospital were evaluated for comparing group. As a results, seropositivity to T. vaginalis in patients with prostatic diseases was 19.7% (BPH: 18.7%, PCa: 22.7%) and it was significantly higher than the 1.7% of the comparing healthy group (P=0.001). Therefore, prostatic tumor showed higher seropositivity against T. vaginalis than normal men. As far as we know, this is the first report about seroprevalence in prostatic tumor in Korea.

• Journal of Chest Surgery
• /
• 제56권3호
• /
• pp.186-193
• /
• 2023

Background: Complete surgical excision is the only curative treatment for primary cardiac tumors. For wide excision, interatrial septal reconstruction (ISR) is commonly performed. We hypothesized that ISR may increase the risk of postoperative atrial tachyarrhythmia (AT) after surgical resection of cardiac myxoma. Methods: After excluding patients with a history of cardiac surgery and concomitant procedures unrelated to tumor resection and those with AT or permanent pacemakers, we finally enrolled 272 adult patients who underwent benign cardiac tumor surgery from 1995 to 2021 at our institution. They were divided into the ISR (n=184) and non-ISR (n=88) groups. The primary outcome was postoperative new-onset AT. Results: The study cohort predominantly consisted of women (66.2%), with a mean age of 57.2±13.6 years. The incidence of postoperative new-onset AT was 15.4%. No 30-day mortality or recurrence was observed. The cardiopulmonary bypass time and aortic cross-clamping time were significantly longer in the ISR group than in the non-ISR group (p<0.001). The median duration of hospital stay of all patients was 6.0 days (interquartile range, 5.0-7.0 days), and no significant difference was observed between the 2 groups (p=0.329). ISR was not an independent predictor of new-onset AT (p=0.248). Male sex and hypertension were found to be independent predictors of new-onset AT. Conclusion: ISR was not a significant predictor of postoperative new-onset AT. ISR might be a feasible and safe procedure for surgical resection of cardiac myxoma and should be considered if needed.