• Journal of Gastric Cancer
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• 제10권2호
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• pp.79-83
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• 2010

Mesenteric fibromatosis is a monoclonal, fibroblastic proliferation arising from musculoaponeurotic structure, and it is distinctive lesions defined as a group of non-metastasizing fibroblastic tumors which has local invasion and has a high recurrence rate after the surgical excision. The main treatment modality is the surgical excision. Radiation therapy, chemotherapy, and hormone therapy are also known as useful treatments. We report our experience of a recent case of Mesenteric fibromatosis. A 62-year old female patient had undergone gastrectomy due to gastric cancer. 18 months after gastrectomy, we detected an abdominal mass. The preoperative radiologic findings were suggestive of recurrence. Exploratory laparotomy was performed and post-operative pathologic diagnosis was confirmed as fibromatosis. We report a patient with mesenteric fibromatosis that mimic recurrence after gastrectomy for gastric cancer.

• Archives of Plastic Surgery
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• 제34권4호
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• pp.520-523
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• 2007

Purpose: Verrucous carcinoma is a rare, low-grade and well-differentiated squamous cell carcinoma, representing as a warty tumor. Estimation of the incidence for cutaneous lesions is not available because they are rare. We describe a case of verrucous carcinoma, a rare type, complication of a chronic pressure ulcer of duration more than 15 years. Methods: A 17-year-old boy presented with a large lesion involving the sacral area, which had been neglected for about 15 years. He had a history of surgical extirpation 2 years ago, but not cured. Examination revealed a cauliflower-like mass arising from an irregularly oval-shaped tumor which was $6.0{\times}4.5cm$ in size with signs of infection and ulcer. The lesion involved the sacrococcygeal area, spreading to both medial gluteal regions. The perianal skin did not appear to be directly affected. Results: A preoperative punch biopsy revealed a extremely well differentiated verrucous carcinoma. There were positive results in immunohistochemistry in the items of p53, p63, Ki-67. An 'en-bloc' excision of the tumor with the clinically normal surrounding tissue was carried out. Reconstruction was achieved by local regional flap. Histopathological findings of the excised area fully confirmed the preoperative biopsy report. It remained free of recurrence for a period of about 8 months. Conclusion: We believe that in patients with buttock involvement, regardless of the extent of such tumors, surgical therapy should be considered as the first-choice of treatment as reconstruction can be performed without excessive impairment for the patient.

• Radiation Oncology Journal
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• 제13권3호
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• pp.225-231
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• 1995

악성 섬유성 조직구종은 상악골부위에서는 매우 드물게 발생하는 악성 종양으로서, 두경부에 발생되는 예가 전체 악성 섬유성 조직구종의 $7{\%}$ 이며 이들 $7{\%}$ 중 $12{\%}$가 상악골에 발생한다고 한다. 상악골의 악성 섬유성 조직구종은 국소재발이나 원격전이가 $55{\%}$의 환자들에서 발생하며 평균 생존기간은 상악골, 하악골 및 구강연부조직의 악성 섬유성 조직구종에 관한 연구에서 30개월로 보고되었다. 상악골의 악성 섬유성 조직구종은 일차적으로 근치적 수술요법이 주 치료방법이다. 방사선치료에 관한 보고들은 대상환자들이 적어서 지금까지 체계적으로 보고되지 않았고, 증례보고에 의한 종양의 퇴행 또는 조직학적 변화가 발표된 바 있으며 일부 저자들은 수술후 방사선치료가 도움이 되지 않으므로 재발성 또는 수술 불가능한 경우에 시행하기를 권하기도 한다. 재발성 또는 전이성 악성 섬유성 조직구종 환자들에서 항암화학요법으로 $33{\%}$의 관해율을 보였다는 보고가 있다. 저자들은 상악골의 악성 섬유성 조직구종 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

• Current Research on Agriculture and Life Sciences
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• 제4권
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• pp.7-11
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• 1986

한국(韓國) 지방(地方) 재래종(在來種) 고추 9계통(系統)과 미국(美國) 식물(植物) 도입국계통(導入局系統)(PI) 34개(個) 계통(系統)을 공시(公試)하여 흑색(黑色) 병징(病徵)의 탄저병(炭疽病)(Colletotrichum dematium)에 대한 저항성(抵抗性)을 검정(檢定)하였다. 적열과(赤熱果)에다 침상후(針傷後) 병원균(病原菌) 현탁액(懸濁液)을 분무(噴霧)하는 방법(方法)과 점적(點滴)하는 방법(方法)으로 접종(接種)한후 침상부위(針傷部位)를 중심(中心)으로 형성(形成)된 병반(病班) 직경(直徑)을 측정(側定)하여 저항성(低抗性)을 평가(評價)한 결과(結果)는 다음과 같다. 1) PI 201232, PI 224451, PI 257044, PI 257119, PI 257099, PI 224433, PI 244668, PI 257102, PI 173877, 남지 청룡 서동 등(等)은 발병(發病)이 가장 적어 저항성(抵抗性)으로 사료(思料)된다. 2) PI 241670, PI 244670, PI 224423 등(等)은 발병(發病)이 가장 커 이병성(罹病性)으로 사료(思料)된다. 3) 기외(其外)는 중간(中間) 정도(程度)였다.

• 대한두개안면성형외과학회지
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• 제12권1호
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• pp.53-57
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• 2011

Purpose: Pyoderma gangrenosum is a rare inflammatory, reactive dermatosis marked by painful cutaneous ulcer. The causes of pyoderma gangrenosum remain unclear. Gastrointestinal, hematological, rheumatological, and immmune disorders may be associated with pyoderma gangrenosum. The appearance of this disease may range from mild skin ulcers to life-threatening conditions. Generalized multiple ulcerative pyoderma gangrenosum is very rare. Here we report our experience with a case of multiple ulcerative pyoderma gangrenosum accompanied by ulcerative colitis. Methods: A 67-year-old man had cutaneous ulcers at multiple sites including the scalp, face, chest, abdomen, hands, and buttocks. He also developed gastrointestinal symptoms such as intermittent dyspepsia and bloody excrement. Debridement and irritation aggravated the disease progress. We gave a diagnosis of pyoderma gangrenosum with ulcerative colitis based on the clinical appearance and biopsy. The patient was treated with systemic intravenous steroid therapies and careful wound cares. Ulcers of the scalp and buttocks were treated with split thickness skin grafts. Results: Most of the multiple cutaneous ulcers were treated by systemic intravenous steroid therapies and wound cares. The rest of the ulcers were treated with skin grafts. Systemic intravenous steroid therapy was used to treat the ulcerative colitis. Conclusion: Generalized multiple ulcerative pyoderma gangrenosum is very rare. Without making an accurate diagnosis, hasty surgical treatments could aggravate the progression of the disease. Additionally, care should be taken to systemically treat underlying disease as well as administrating local treatments for the skin lesions. Intravenous systemic steroid therapy and skin grafts are useful treatments for generalized pyoderma gangrenosum.

• 한국육종학회지
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• 제42권4호
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• pp.365-373
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• 2010

TILLING (Targeting Induced Local Lesions IN Genomes) is broadly regarded as an excellent methodology for reverse genetics applications. Approximately 15,000 $M_3$ TILLING lines have been developed via the application of gamma-ray irradiation to rice seeds (cv. Donganbyeo), followed by subsequent selections. In an effort to evaluate the genetic diversity of the TILLING population, we have employed the AFLP multiple dominant marker technique. A total of 96 (0.64%) TILLING lines as well as Donganbyeo were selected randomly and their genetic diversity was assessed based on AFLP marker polymorphisms using 5 primer combinations. An average of 100.4 loci in a range of 97 to 106 was detected using these primer combinations, yielding a total of 158 (31.4%) polymorphic loci between Donganbyeo and each of the 96 lines. A broad range of similarity from 80% to 96% with an average of 89.4% between Donganbyeo and each of the 96 lines was also observed, reflecting the genetic diversity of the TILLING population. Approximately 28 polymorphic loci have been cloned and their sequences were BLAST-searched against rice whole genome sequences, resulting in 20 matches to each of the gene bodies including exon, intron, 1 kb upstream and 1 kb downstream regions. Six polymorphic loci evidenced changes in the coding regions of genes as compared to the rice pseudomolecules, 4 loci of which exhibited missense mutations and 2 loci of which exhibited silent mutations. Therefore, the results of our study show that the TILLING rice population should prove to be a useful genetic material pool for functional genomics as well as mutation breeding applications.

• Journal of Gastric Cancer
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• 제21권4호
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• pp.426-438
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• 2021

Purpose: While the incidence of Barrett's neoplasia has been increasing in Western countries, the disease remains rare in Asian countries. Therefore, very few studies have investigated the endoscopic treatment for Barrett's neoplasia in Korea. Endoscopic submucosal dissection (ESD) enables en bloc and complete resection of gastrointestinal neoplastic lesions. This study aimed to evaluate the therapeutic outcomes of ESD for Barrett's neoplasia in a single center in Korea and to examine the predictive factors for incomplete resection. Materials and Methods: We conducted a retrospective observational study of 18 patients who underwent ESD for superficial Barrett's neoplasia (dysplasia and early cancer) between January 2010 and December 2019 at Pusan National University Hospital. The therapeutic outcomes of ESD and procedure-related complications were analyzed. Results: En bloc resection, complete resection, and curative resection were performed in 94%, 72%, and 61% of patients, respectively. Histopathology (submucosal or deeper invasion of the tumor) was a significant predictive factor for incomplete resection (P=0.047). Procedure-related bleeding and stenosis were not observed, whereas perforation occurred in one case. During the median follow-up period of 12 months (range, 6-74 months), local recurrence occurred in 2 patients with incomplete resection, one patient underwent repeat ESD, and the other patient received concurrent chemoradiotherapy. The 3-year overall and disease-specific survival rates were 73% and 93%, respectively. Conclusions: ESD seems to be an effective and safe treatment for superficial Barrett's neoplasia in Korea. Nevertheless, the suitability of ESD for Barrett's cancer cases should be determined considering the high risk of deep submucosal invasion.

• The Plant Pathology Journal
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• 제37권6호
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• pp.632-640
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• 2021

Cucumber mosaic virus (CMV) and Pepper mild mottle virus (PMMoV) causes severe economic loss in crop productivity of both agriculture and horticulture crops in Korea. The previous surveys showed that naturally available biopolymer material - chitosan (CS), which is from shrimp cells, reduced CMV accumulation on pepper. To improve the antiviral activity of CS, it was synthesized to form phosphate cross-linked chitosan (PCS) and compared with the original CS. Initially, the activity of CS and PCS (0.01%, 0.05%, and 0.1% concentration) compound against PMMoV infection and replication was tested using a half-leaf assay on Nicotiana glutinosa leaves. The total number of local lesions represented on a leaf of N. glutinosa were counted and analyzed with phosphate buffer treated leaves as a negative control. The leaves treated with a 0.1% concentration of CS or PCS compounds exhibited an inhibition effect by 40-75% compared with the control leaves. The same treatment significantly reduced about 40% CMV accumulation measured by double antibody sandwich enzyme-linked immunosorbent assay and increased the relative expression levels of the NPR1, PR-1, cysteine protease inhibitor gene, LOX, PAL, SRC2, CRF3 and ERF4 genes analyzed by quantitative reverse transcriptase-polymerase chain reaction, in chili pepper plants.

• Journal of Microbiology and Biotechnology
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• 제33권8호
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• pp.1091-1100
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• 2023

Human papillomavirus (HPV) types 16 and 18 are the major causes of cervical lesions and are associated with 71% of cervical cancer cases globally. However, public health infrastructures to support cervical cancer screening may be unavailable to women in low-resource areas. Therefore, sensitive, convenient, and cost-efficient diagnostic methods are required for the detection of HPV16/18. Here, we designed two novel methods, real-time ERA and ERA-LFD, based on enzymatic recombinase amplification (ERA) for quick point-of-care identification of the HPV E6/E7 genes. The entire detection process could be completed within 25 min at a constant low temperature (35-43℃), and the results of the combined methods could be present as the amplification curves or the bands presented on dipsticks and directly interpreted with the naked eye. The ERA assays evaluated using standard plasmids carrying the E6/E7 genes and clinical samples exhibited excellent specificity, as no cross-reaction with other common HPV types was observed. The detection limits of our ERA assays were 10⁰ and 10¹ copies/µl for HPV16 and 18 respectively, which were comparable to those of the real-time PCR assay. Assessment of the clinical performance of the ERA assays using 114 cervical tissue samples demonstrated that they are highly consistent with real-time PCR, the gold standard for HPV detection. This study demonstrated that ERA-based assays possess excellent sensitivity, specificity, and repeatability for HPV16 and HPV18 detection with great potential to become robust diagnostic tools in local hospitals and field studies.

• 대한영상의학회지
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• 제84권1호
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• pp.275-279
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• 2023

과립 세포 종양은 신체의 모든 부위에서 발생할 수 있으나, 특히 두경부에서 주로 발생하는 드문 양성 연부 종양이며, 이 중 5%-8%가 유방에서 발생한다. 저자들은 드문 부위인 액와부 부유방에 발생한 과립 세포 종양 1예를 보고하고자 한다. 50세 여자에게 2개월 전부터 좌측 액와부에 만져지는 종괴가 있었다. 이학적 검사, 유방 촬영술 및 초음파 소견에서 유방의 악성 종양을 먼저 생각하였다. 조직 검사에서 양성 과립 세포 종양으로 진단되었으며 이후 광범위 국소 절제술을 시행하였다. 환자는 수술 후 2년의 추적 관찰 기간 동안 재발하지 않았다. 대부분의 과립 세포 종양은 양성이지만, 재발의 가능성 때문에 종양의 광범위한 완전 절제와 추적 관찰이 필요하다. 영상의학과 의사는 불필요한 치료를 막기 위해 유방 및 액와부 병변의 감별 진단으로 과립 세포 종양의 특징에 대해 알고 있어야 한다.