• Journal of Chest Surgery
• /
• 제26권7호
• /
• pp.564-567
• /
• 1993

Carcinosarcoma of the lung is an admixture of cardinomatous and sarcomatous lesion and accounts for 0.3% of all pulmonary neoplasm. Clinicopathological features are often related to anatomical location : central endobronchial type and peripheral parenchymal type. Noninvasive diagnostic tests had a low yield in detection carcinosarcoma. Metastasis to regional lymph nodes and to distant organ is common. The prognosis is poor and the median survival is less than one year.Two cases of carcinosarcoma patients are reported here - one case is composed of undifferent cell carcinoma and spindle cell sarcoma in the male of 72 year old and the other case squamous cell carcinoma and spindle cell sarcoma in the male of 65 year old.

• Journal of Chest Surgery
• /
• 제22권3호
• /
• pp.498-502
• /
• 1989

Carcinosarcoma is the group of neoplasms possessing both carcinomatous parenchyma and sarcomatous stroma. These tumors are relatively uncommon and may arise in variable organs. In this case, a 62-year-old male patient was admitted to our department due to left chest pain and general weakness of three months duration. The chest x-ray revealed egg-sized, relatively well defined lobulated soft tissue mass in left paracardiac area. Left lower lobectomy was performed under the preoperative impression of lung cancer. Pathologic examination of the resected lung revealed carcinosarcoma without regional lymph node metastasis. Patient is doing well at present without any chemotherapy.

• 대한두경부종양학회지
• /
• 제16권1호
• /
• pp.83-86
• /
• 2000

Thyroglossal duct cyst is common midline mass, which is related to hyoid bone and may show signs of inflammation. Carcinoma arising in the thyroglossal duct cyst is rare, occuring in less than 1% of thyroglossal duct cyst. Papillary adenocarcinoma is the most common histologic type(75-85%). The initial treatement of choice is wide excision of the tumor bearing tissue(Sistrunk procedure), resection of associated lymph node alone is enough when they are small and isolated, but a modified neck dissection must be done if regional involvement is more extensive. Its prognosis is excellent(the incidence of regional lymph node metastasis is 7% compare to 89% for papillary cancer of thyroid gland proper).

• 대한두개안면성형외과학회지
• /
• 제11권1호
• /
• pp.58-61
• /
• 2010

Purpose: Sebaceous carcinoma is a rare malignant tumor that occurs mostly in head and neck regions. Early diagnosis and treatment are necessary because it tends to be locally aggressive and goes through distal metastasis with fast progression. This study presents reliable surgical methods for sebaceous carcinoma in head and neck regions. Methods: Three patients were included in this study. First, a 61-year-old woman visited the hospital with a yellow-colored, slowly growing mass on the left ala. A 54-year-old woman had a brown-colored mass on her right preauricle. Last case was a 62-year-old man who had a yellow-colored mass on his scalp. CT scan and punch biopsy were done. All cases were diagnosed as sebaceous carcinoma. The lesions were resected with 10 mm safety margin and various regional flaps were used for reconstruction. Results: Histological examination revealed sebaceous differentiation and local invasions. Postoperatively, all patients did not suffer from complication and no recurrence was found. Conclusion: We recommend early wide excision with an enough safety margin, and a regional flap as a treatment of sebaceous carcinoma.

• Nutrition Research and Practice
• /
• 제14권5호
• /
• pp.463-477
• /
• 2020

BACKGROUND/OBJECTIVES: Many studies have suggested that Rhus verniciflua Stokes (RVS) and its extract are anticancer agents. However, RVS had limited use because it contains urushiol, an allergenic toxin. By improving an existing allergen-removal extraction method, we developed a new allergen-free Rhus verniciflua Stokes extract (RVSE) with higher flavonoid content. In this study, we examined whether RVSE inhibits the ability of AGS gastric cancer cells to migrate and invade. MATERIALS/METHODS: The flavonoids content of RVSE was analyzed by HPLC. The effects of RVSE on migration and invasion in AGS cells were analyzed by each assay kit. Matrix metalloproteinase (MMP)-9, plasminogen activator inhibitor-1 (PAI-1) and urokinase-type plasminogen activator (uPA) protein expression was analyzed by protein antibody array. The Phosphorylation of signal transducer and activator of transcription (STAT) 3 were assayed by Western blot analysis. RESULTS: RVSE treatment with 0-100 ㎍/mL dose-dependently reduced the ability of AGS cells to migrate and invade. Notably, treatment with RVSE strongly inhibited the expression of MMP-9 and uPA and the phosphorylation of STAT3. In contrast, RVSE treatment dramatically increased the expression of PAI-1. These results indicate that the inhibition of MMP-9 and uPA expression and STAT3 phosphorylation and the stimulation of PAI-1 expression contributed to the decreased migration and invasion of AGS cells treated with RVSE. CONCLUSIONS: These results suggest that RVSE may be used as a natural herbal agent to reduce gastric cancer metastasis.

• Journal of Gastric Cancer
• /
• 제3권1호
• /
• pp.33-37
• /
• 2003

Purpose: Alpha-fetoprotein (AFP) is widely accepted as a useful tumor marker for diagnosis of hepatocellular carcinomas. On rare occasions, however, an abnormal elevation of serum AFP also has been reported in an adenocarcinoma of the gastrointestinal tract. We evaluated the influence of preoperative abnormal elevation of serum AFP (AFP positivity) on the prognosis of resectable gastric cancers. Materials and Methods: 812 gastric cancer patients, who were investigated for serum AFP before their operations and who underwent gastric resections with D2 or more extended lymph node dissection, were enrolled in the study. The survival rates were calculated by using the Kaplan-Meier method and were compared by using the log-rank test. A multivariate analysis was performed using the Cox proportional hazards model. Results: Fifty patients ($6.2\%$) were AFP positive (10.1. 4322.6 ng/ml). The survival rate of the AFP positive group was significantly lower than that of the AFP negative group ( $46.6\%\;vs.\;67.0\%$; P=0.0002). The depth of tumor invasion, the degree of regional lymph node metastasis, distant metastases, the TNM stage, the gross type, differentiation, the extent of gastric resection, and the curability of the surgery also significantly influenced survival. Multivariate analysis revealed that the depth of tumor invasion, the degree of regional lymph node metastasis, the curability of the surgery, and AFP positivity were independent prognostic indicators. Conclusion: Preoperative serum AFP can be used as an independent prognostic factor of resectable gastric cancer.

• Asian Pacific Journal of Cancer Prevention
• /
• 제13권8호
• /
• pp.3809-3813
• /
• 2012

Background and Objectives: Colorectal cancer (CRC) is a major health problem in the Kingdom of Saudi Arabia (KSA). Our aim was to characterize the epidemiology of CRC in the Saudi population. Design and Setting: Retrospective analysis of all cases of CRC recorded in the Saudi Cancer Registry (SCR) between January 2001 and December 2006 amongst Saudi citizens in KSA. Patients and Methods: Data were retrieved from the database of the SCR. Descriptive statistics was performed using SPSS. Results: A total of 4,201 cases of CRC were registered in the SCR. The incidence of CRC increased between 2001 and 2006. The mean age of patients at the time of diagnosis was 58 years; most patients were above 45 years of age (n=3322; 79.1%). At the time of diagnosis, 977 patients (23.0%) presented with localized disease and 1,018 (24.0%) had distant metastasis. The most frequent pathological variant was adenocarcinoma (73%), with grade 2 (moderately differentiated) being the most common grade among all variants (61%). For all cancer grades, the frequency of CRC was significantly higher among patients >45 years (P=0.004), who presented with more advanced disease (stages III and IV) (P=0.012). Based on logistic regression, age >45 years was associated with advanced regional presentation (P=0.001). Tumor grade was associated with advanced regional presentation and metastasis. Conclusions: There was an increase in the incidence of CRC between 2001 and 2006. The age at the time of diagnosis was low when compared with reports from developed countries. A nationwide approach is needed to encourage and illustrate the importance of screening programs.

• Asian Pacific Journal of Cancer Prevention
• /
• 제16권12호
• /
• pp.4853-4858
• /
• 2015

Background: Colorectal cancer is the most common gastrointestinal cancer in Oman with an increasing incidence. We here report the presenting features, treatment outcomes and survival in a University hospital in Oman and compare our data with regional and international studies. Materials and Methods: Medical records of patients with colorectal cancer were reviewed retrospectively between June 2000 and December 2013 and were followed until June 2014. Results: A total of 162 patients were diagnosed with colorectal cancer. The majority were males (58.6%), with a median age of 56 years. Rectum was involved in 29.6% of patients, followed by ascending and sigmoid colon. The majority of patients had stage III (42.6%) and stage IV (32.7%) disease at presentation. K-Ras status was checked for 79 patients, and 41 (51.9%) featured the wild type. Median relapse free survival was 22 months. Median overall survival for all patients was 43 months. Observed 5 year overall survival (OS) for stages I, II and III was 100%, 60% and 60% respectively. On Log rank univariate analysis, age, BMI, diabetes, hypertension, metformin use, stage, clinical nodal status for rectal cancer, pathological T and nodal status, site of metastasis, surgical intervention, chemotherapy, radiotherapy, chemotherapy regimen, no of cycles of chemotherapy, response, RFS, site of recurrence and administration of $2^{nd}$ line chemotherapy were significant factors affecting OS. On Cox regression multivariate analysis none of the factors independently affected the OS. Conclusions: The majority of patients present with advanced disease and at young age. The survival rates are comparable to the published regional and international literature.

• 대한골관절종양학회지
• /
• 제18권1호
• /
• pp.45-49
• /
• 2012

골육종에서 드물게 발생하는 도약전이 병소는 불량한 예후 인자로서 중요한 연관성이 있기 때문에 골육종 환자의 광범위 절제술 시에 절제범위에 포함되어야 한다. 따라서 수술 전 검사에서 골육종의 골수 내 침범에 대한 정밀한 평가가 필수적이며, 골스캔 검사는 도약전이의 발견에 있어서는 높은 위음성률을 보일수 있으며 자기공명영상 검사는 종양이 위치한 골 전체를 촬영하지 않는 경우 임상적인 증거가 없으면 간과하기가 쉽다는 단점이 있다. 이에 저자들은 주 종양 부위만을 포함한 국소 자기공명영상 촬영과 골스캔에서 발견되지 않았으나 FDG-PET/CT에서 도약 전이가 진단된 대퇴 원위부의 골육종 증례에 대해 문헌 고찰과 함께 보고하고자 한다.

• 대한핵의학회지
• /
• 제35권5호
• /
• pp.301-312
• /
• 2001

목적: 위암은 한국에서 가장 흔한 악성 종양 중에 하나이지만 PET에 관한 보고는 없었다. 본 연구는 위암 환자에서 PET의 소견 및 수술 전 일차병소, 영역 림프절 전이 및 재발의 진단에 대하여 분석하여 보고하고자 한다. 대상 및 방법: 위암으로 진단 받은 뒤 수술이 예정된 13명의 위선암 환자에서 PET 및 CT를 시행하고 수술결과와 비교하였다. 일차병소에서는 FDG 섭취율과 예후 인자들과의 상관관계를 분석하였다. 재발의 경우에서는 위암으로 인한 수술을 받고 경과관찰 중 재발이 의심되거나 혹은 재발 진단 후 치료방침결정을 위한 범위 결정을 위해 PET가 시행되었던 환자들 중에서, 재발진단을 위한 검사들이 시행되었던 19명을 대상으로 분석하였다. 문합 부위 및 원격전이로 나누어 예민도를 구하였으며, 종양표지자의 상승과 PET의 진단을 비교하였다. 결과 일차병소 14개 중에서 PET 12개, CT 10개를 진단하여 예민도가 각각 83.3%, 71.4%였으며 검사 간 차이가 유의하지는 않았다. PET에서 발견하지 못한 2개의 병소는 점막하 병소였으며 일차병소의 FDG 섭취율과 일차병소의 크기, 침윤정도, Borrmann 형, 수술 후 병기, 분화도 사이에 유의한 상관관계는 없었다. 위주위 림프절은 101개의 전이가 있었으며 PET, CT의 예민도가 각각 8.9%, 9.9%였다. 영역림프절은 12개의 전이가 있었으며 PET, CT의 예민도가 둘다 58.3%였으며 분화도와 진단 여부와는 상관관계가 없었으며, 크기와는 관계가 있어 1cm 미만의 림프절은 두 검사 모두에서 진단율이 떨어졌다. 재발 진단에서 문합부위의 재발이 4예가 있었으며 PET에서 모두 진단되어 예민도가 100%였으나 위양성이 3예가 있었다. 원격전이의 진단은 14예에서 원격전이가 있다고 판정되었는데 PET에서는 9예를 진단하여 예민도가 64.3%로 기존의 검사법들의 예민도 21.4%에 비하여 유의하게 높았다($x^2=6$, p<0.05). 종양표지자만 상승한 경우에서 PET의 예민도가 60.0%로 기존 검사의 20.0%에 비하여 유의하게 높았다($x^2=4$, p<0.05). 결론: PET는 위암의 재발 진단에서 원격전이의 경우 기존의 검사보다 유용한 검사이다. 수술 전의 경우에서는 기존의 검사와 대등한 진단 성능을 보였으며 수술 전 윈격전이의 진단은 추가적인 연구가 필요하겠다.