• Asian Pacific Journal of Cancer Prevention
• /
• 제13권12호
• /
• pp.6357-6362
• /
• 2012

Background: To determine the prevalence of mammalian target of rapamycin phosphorylation (p-mTOR) and vascular endothelial growth factor (VEGF) and any correlation with clinical characteristics and prognosis in ovarian clear cell carcinoma patients. Materials and Method: Seventy four paraffin-embedded specimens of such carcinomas frompatients who underwent surgery, received adjuvant chemotherapy and were followed up at King Chulalongkorn Memorial Hospital during January 2002 to December 2008 were stained with rabbit monoclonal IgG p-mTOR and rabbit polyclonal IgG VEGF using immunohistochemical methods. Medical records were reviewed and clinical variables were analysed. Results: The prevalence of positive p-mTOR in ovarian clear cell carcinoma was 87.9% and significantly higher in advance-stage than early-stage patients (100% versus 83.6%, P<0.05). Two-year disease free survival and 2-year overall survival in patients with positive p-mTOR expression were 60% and 69.2% with no differences from patients with negative p-mTOR expression (p>0.05). The prevalence of VEGF expression was 63.5% and significantly higher in chemo-sensitive than chemo-resistant patients (70.7% versus 37.5%, P<0.05). Two-year disease free survival and 2-year overall survival in patients with VEGF expression were 72.3% and 83% respectively which were significantly different from patients with negative VEGF expression (p<0.05). Conclusions: p-mTOR expression in ovarian clear cell carcinoma was significantly correlated with the stage of disease. VEGF expression was significantly correlated with chemosensitivity, and survival. Further studies of related targeted therapy might be promising.

• 한국임상수의학회지
• /
• 제28권3호
• /
• pp.303-306
• /
• 2011

프로게스테론 제제를 복용해 오던 12세령의 암컷 잡종 견이 복부 종괴의 평가를 위해 내원하였다. 복부 초음파 검사와 방사선 검사를 통해 확장된 자궁과 관련된 종괴를 확인하였다. 혈청 화학 검사에서는 고글로불린혈증이 나타났으며, 전기영동 검사상 급성 염증 패턴으로 판단되었다. 초음파 유도하에 종괴의 세침흡인을 실시하였으며 세포학검사를 통해 선암종이 진단되었다. 탐색적 개복을 실시하였으며 장구체의 종괴를 발견하여 자궁과 함께 종괴를 제거하는 수술을 실시하였다. 조직병리 검사결과 자궁 선암종이 진단되었으며 종양세포의 에스트로겐 수용체와 프로게스테론 수용체 발현 여부 평가를 위해 면역 염색을 실시하였다. 면역염색결과 종양세포는 두 항체에 대해 음성 결과를 보였으며, 정상 간엽세포에서만 양성 결과가 나타났다. 수술 후 1주일에 재검을 위해 내원하였는데 컴퓨터 단층촬영 검사결과 폐 전이가 확인되었다. 환자는 수술 후 40일경에 폐사하였다.

• 대한세포병리학회지
• /
• 제9권2호
• /
• pp.207-211
• /
• 1998

Adenoid cystic carcinoma of the uterine cervix is a rare tumor accounting for less than 1% of all cervical adenocarcinoma. This tumor is characterized by aggressive biological behavior with frequent local recurrence or metastatic spread, postmenopausal onset, and occasional association with conventional squamous cell carcinoma. The cytologic diagnosis of adenoid cystic carcinoma in the uterine cervix is often difficult because of negative smear due to intact overlying mucosa, cytologic findings mimicking endometrial cells, and masquerade as squamous ceil carcinoma. Recently we have experienced a case of adenoid cystic carcinoma arising in the uterine cervix, which was identified on the routine Papanicolaou smear and was histologically confirmed by the consequent biopsy. The smear showed abundant cellularity composed of relatively uniform cells. The tumor cells were arranged in small clusters, acini, naked cells, and loose sheets with abortive cribriform pattern. There were scattered globoid basement membrane-like materials and tumor diathesis. The nuclei were pleomorphic and showed hyperchromatic and coarsely granular choromatin with inconspicuous nucleoli. The punch biopsy of the uterine cervix showed typical histologic findings of adenoid cystic carcinoma characterized by tumor nests composed of hyperchromatic uniform basaloid cells, cribriform pattern, and cylindrical hyaline bodies.

• 대한세포병리학회지
• /
• 제14권1호
• /
• pp.36-41
• /
• 2003

Epithelioid hemangioendothelioma is a rare vascular tumor of borderline malignancy which is characterized by the presence of "epithelioid" or "histiocytoid" endothelial cells. Superficial and deep tumors have been recognized in the extremities, head, neck, chest, and mediastinum of adult patients. It may also occur as a primary tumor of liver, bone, and other visceral organs. Few effusion cytologic findings of epithelioid hemangioendothelioma have been reported. We report a case of composite epithelioid hemangioendothelioma with focal epithelioid angiosarcomatous areas of the iliac bone and adjacent soft tissue in a 38-year-old female, which, during its metastatic course, was presented as a pleural effusion. The effusion was cellular with epithelioid cells presenting both singly and in clusters. The tumor cells were round to ovoid shewing cytoplasmic vacuolization, variability in cell size, and prominent nucleoli. The effusion smears and cell block sections revealed strong positive staining for CD31 and vimentin, weak positive for CD34 and Factor VIII-related antigen, and negative for cytokeratin, CEA, and calretinin. The cytologic findings in this case were similar to that of metastatic adenocarcinoma or malignant mesothelioma. Therefore, immunocytochemical staining in smear and cell block is a helpful tool to differentiate malignant 'epithelioid' cells in effusion.

• Asian Pacific Journal of Cancer Prevention
• /
• 제17권11호
• /
• pp.4973-4976
• /
• 2016

Objective: This article concerns evaluation of the sensitivity, specificity and accuracy of FNAB for pre-surgical diagnosis of benign and malignant lesions of major and minor salivary glands of patients treated in the Department of Head and Neck Surgery of Erasto Gartner Hospital. Methods: This retrospective study analyzed medical records from January 2006 to December 2011 from patients with salivary gland lesions who underwent preoperative FNAB and, after surgical excision of the lesion, histopathological examination. Results: The study had a cohort of 130 cases, but 34 cases (26.2%) were considered unsatisfactory regarding cytology analyses. Based on the data, sensitivity was 66.7% (6/9), specificity was 81.6% (71/87), accuracy was 80.2% (77/96), the positive predictive value was 66,7% (6/9) and the negative predictive value was 81.6% (71/87). Conclusion: Despite the high rate of inadequate samples obtained in the FNAB in this study the technique offers high specificity, accuracy and acceptable sensitivity.

• 한국콘텐츠학회논문지
• /
• 제13권8호
• /
• pp.308-313
• /
• 2013

세포선별검사에서 ASCUS로 진단된 검체 중 F-UP이 진행되지 않은 검체 179건을 대상으로 HPV high risk factor, low risk factor를 확인하기 위해서 Hybrid Capture II Test를 하였다. 시험 결과 high risk factor 양성 및 low risk factor 양성은 전체 179 cases 중 26 cases로 나타났으며, 전체 검체 중 약 15%에 해당되었다. 또한 전체 15%의 양성검체 중 high risk factor 양성은 96%에 해당되는 것을 확인하였다. 결론적으로 효과적인 검진 체계를 갖춘 나라에서도 자궁경부암의 예방이 완전히 해결되지 않고 있는 문제점이 있는 여건을 고려해 볼 때 추적 관찰이 용이하지 않은 경우를 대비해 자궁경부암으로 진행될 수 있는 precancerous lesion의 원인 인자인 HPV 존재 유무를 세포선별검사와 HPV Hybrid Capture II Test를 동시에 시행하는 것이 효과적이라고 사료된다.

• Asian Pacific Journal of Cancer Prevention
• /
• 제16권4호
• /
• pp.1519-1523
• /
• 2015

Infection of the uterine cervix by human papilloma viruses (HPV) may be associated with cervical pre-cancer and invasive cervical carcinoma if left untreated. With advance in molecular techniques, it has become easier to detect the resence of HPV DNA long before the appearance of any lesion. This study concerned cervical scrape samples of 310 married non-pregnant women attending a gynecology outpatient department for both Pap and PCR testing to detect HPV DNA. Nested PCR using primers for L1 consensus gene with My9/My11 and GP6+/GP5+followed by multiplex PCR were carried out to detect HPV 16 and HPV18. Result: HPV prevalence was 11.9% out of which 3.67% cases of negative for intra-epithelial lesion or malignancy (NILM) and in 71.1% (27/38) of atypical cervical smears were HPV positive. There was increasing trend of high-risk-HPV positivity (HR HPV 16 and 18), from 20% in benign cytology (NILM) to 42.9 % in LSIL, 71.41% in HSIL and 100% in SCC. There was highly significant association of HPV infection with cervical lesion ($x^2=144.0$, p<0.01) and also with type specific HPV prevalence ($x^2=7.761^*$, p<0.05).

• Asian Pacific Journal of Cancer Prevention
• /
• 제16권6호
• /
• pp.2297-2301
• /
• 2015

Background: Despite widely adopted standard methods for follow-up including cystoscopy plus cytology, recurrence rates of non muscle-invasive bladder cancer (NMIBC) have not improved over the past decades, still ranging from 60% through 70%. Hence, widely acceptable surveillance strategies with excellent sensitivity are needed. Early recurrence has led to the development of a novel cystoscopy technique utilizing photodynamic diagnosis (PDD). Although, no studies have evaluated the efficacy of PDD for patients of MIBC, BCG failure or 2nd-transurethelial resection (TUR). Materials and Methods: The present study was performed from October 2012 through May 2013. IRB approved 25 patients initially underwent a cystoscopy examination of white light and blue light followed by the resection of tumors identified. Resections were performed from bladder mucosa areas considered suspicious at PDD, along with PDD negative normal bladder mucosa area resected by random biopsy. Specimens were divided into two groups, PDD positive and negative. Primary endpoints were sensitivity and specificity. Results: A total of 147 specimens extracted from 25 patients were included in the analysis. Some 45 out of 92 PDD-positive specimens were confirmed to have bladder cancer, and 51 out of PDD-negative 55 specimens were confirmed to be cancer negative. The sensitivity of PDD was 91.8% (45/49) and specificity was 52.0% (51/98). The sensitivity:specificity was 89.5% (17/19) : 47.6% (30/63) in 12 2nd-TUR patients, 90.5% (19/21) : 61.1% (11/18) in seven MIBC patients, and 95.0% (19/20) : 48.5% (16/33) in eight failed BCG cases. Conclusions: PDD-TURBT has high sensitivity to diagnose BC even for 2nd-TUR, MIBC or BCG failure cases.

• 대한방사선기술학회지:방사선기술과학
• /
• 제31권2호
• /
• pp.141-147
• /
• 2008

갑상선 질환은 임상에서 흔히 볼 수 있는 내분비계 질환이다. 기존의 FNA (미세침흡인검사)는 갑상선결절 진단에 매우 널리 이용되고 있으나 결절의 크기가 작고 불분명한 경우, 심부에 위치하여 촉진이 어렵거나, 복합 낭종인 경우에는 적절한 표본 획득의 어려움 등의 제한점을 가지고 있다. 이러한 제한점을 최소화하고 검사의 정확성을 높이기 위한 방법의 하나로써 최근에는 US-guided FNA (초음파유도 미세침흡인검사)가 활발히 시행되고 있다. 이에 이 연구에서는 한 대학병원에서 시행되고 있는 US-guided FNA의 결과를 분석하여 표본의 정확성을 파악함으로써 US-guided FNA의 진단적 유용성을 알아보고자 하였다. 갑상선 결절로 US-guided FNA를 시행 받은 364명의 연구대상자중 성별은 여성이 316명(86.8%)으로 월등히 많았으며 연령층은 40대의 비율(51.4%)이 가장 높은 것으로 나타났다. 결절의 위치는 오른쪽이 157명(43.1%), 왼쪽이 130명(35.7%), 협부 9명(2.5%)의 순이었다. 결절의 크기는 1cm 미만인 경우는 38.2%, 1cm 이상인 경우는 61.8%인 것으로 확인되었으며, 결절의 내부 에코 양상은 고형성인 경우가 255명(70.1%)으로 가장 많았으며 낭성은 39명(10.7%), 혼합형인 경우는 19.2%이었다. 병리검사 결과 양성 307명(84.3%), 악성은 20명(5.5%), 악성의심이 4명(1.1%)이었으며, 부적절한 검체는 33명(9.1%)이었다. US-guided FNA는 표본의 적절성과 진단적 정확성을 향상시킬 것으로 기대되며 향후 진단적 정확성과 관련하여 감수성과 특이성, 예측도 등의 지표에 대한 연구들이 보완되어야 할 것으로 사료된다.

• Asian Pacific Journal of Cancer Prevention
• /
• 제16권10호
• /
• pp.4223-4228
• /
• 2015

Objective: To investigate the diagnostic value of the R-way colposcopic evaluation system (R-way system) in cervical cancer screening. Materials and Methods: Between August 2013 and August 2014, a total of 1,059 cases referred to colposcopy in Peking University First Hospital were studied using both the R-way system and conventional colposcopy. Our study evaluated and compared the diagnostic ability of the two methods in detecting high-grade lesions and cervical cancer (hereinafter called CIN2+). Evaluation indicators including sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), Youden index and the area under the curve (AUC) of the receiver operating characteristic (ROC) were calculated. Results: The R-way system had a slightly lower specificity (94.5%) than conventional colposcopy (96.0%) for CIN2+ detection (P=0.181). However, the sensitivity (77.8%) was significantly higher than with the conventional colposcopic method (46.6%) (${\chi}^2=64.351$, P<0.001). In addition, the AUC of the ROC for CIN2+ detection using the R-way system (0.839) was larger than that with conventional colposcopy (0.731) (Z=4.348, P<0.001). If preliminary result had been drawn from cervical exfoliated cytology before colposcopy referral, combination of the R-way system with cytology could increase the sensitivity to 93.9% for CIN2+ detection (excluding ASCUS\LSIL), confirmed by multipoint biopsy or ECC. Conclusions: The diagnostic value of the R-way evaluation system is higher than that of conventional colposcopic evaluation in cervical cancer screening. Moreover, taking the ease of use and standardized quality control management into account, the R-way system is highly preferable.