• Tuberculosis and Respiratory Diseases
• /
• 제45권3호
• /
• pp.565-573
• /
• 1998

연구배경: 악성 흉막 삼출증은 폐암에 합병되는 경우가 가장 흔하지만 그 외에 유방암, 난소암, 위암등에서도 호발하며 조직학적 아형에 따라 나누면 선암이 가장 흔하며 편평상피세포암이 악성 흉막 삼출을 일으키는 경우는 매우 드물다고 보고되어왔다. 연자들은 악성 흉막 삼출증의 조직학적 아형에 따른 빈도와 흉수의 특징을 분석하였다. 방 법: 1992년 1월부터 1997년 5월까지 서울대학교 병원에서 흉수의 세포진 검사나 경피적 혹은 흉강경을 이용한 흉막 조직 검사 결과 악성 흉막삼출증로 확인된 84예의 환자를 대상으로 하여 조직 표본과 의무기록을 통해 조직학적 아형을 구분하고 임상적 양상과 생화학적 지표 등을 조사하고 생존기간을 분석하였다. 결 과: 총 84명의 대상 환자 중 남자 52명, 여자 32명으로 남녀 성비는 1.6:1이었고 연령의 중앙값은 56세였다. 환자의 주 증상은 호흡곤란이 42명으로 가장 흔했고 기침과 객담, 흉막성 흉통 등의 순서였으며 평균 생존 기간은 6.4개월이었다. 그 중 혈성 흉수의 빈도는 66%. 림프구 우위성은 39%, 삼출성 흉수는 93%였고 조직학적 아형은 선암 54예(33예가 폐암), 편평상피세포암 10예 (8예가 폐암), 악성림프종 10예, 소세포암 8예 그리고 악성 중피종과 백혈병이 각각 1예였고 각각의 혈성 흉수, 림프구 우위성, 삼출성 흉수의 빈도는 별다른 차이가 없었으며 생화학적 수치의 차이도 관찰되지 않았다. 악성 흉막 삼출을 일으킨 원인 질환은 폐암이 49예로 가장 많았고 그외 원발 부위 불명확 악성 종양 7예, 위암, 유방암이 각각 5예, 담관암이 3예 그리고 난소암, 급성 백혈병, 악성 중피종이 각각 1예 씩 이었고 각각의 혈성 흉수, 림프구 우위성, 삼출성 흉수의 빈도, 생화학적 지표의 차이도 역시 관찰되지 않았다. 결 론: 같은 시기의 서울대학교병원의 폐암의 조직학적 아형의 빈도가 편평상피세포암 47%, 선암 33%, 소세포암 12%, 대세포암 2%인 것과 비교해보면 선암에서 악성 흉악 삼출증이 호발하며 편평 상피 세포암에서는 상대적으로 드물다는 것을 확인할 수 있었고 악성 흉막 삼출증 환자를 조직학적 아형이나 원발 악성 질환에 따라 분류하였을 때 혈성 흉수, 림프구 우위성, 삼출성 흉수의 빈도의 차이는 없었다.

• Asian Pacific Journal of Cancer Prevention
• /
• 제16권17호
• /
• pp.7541-7546
• /
• 2015

Aim: To report the histologic findings on Whipple resection specimens and thus determine the extent and spread of carcinomas of ampullary region and head of pancreas in our population. Setting: Section of Histopathology, Department of Pathology, Aga Khan University Hospital (AKUH), Karachi, Pakistan. Materials and Methods: A case series of 311 consecutive Whipple resection specimens received between January 1,2003 and December 31, 2014. Specimens processed for histologic sections and representative sections submitted and histologically examined as per established and standard protocols. All relevant tumor parameters including histologic type, histologic grade, pathologic T and N stage and tumor size were assessed. Epidemiologic data were also recorded. All findings were analysed using SPSS 19.0 software. Results: Ampullary (periampullary) carcinomas were much more common than carcinomas of the head of the pancreas, especially in males, with an average age of 53 years. Mean tumor size was 2.5 cms, over 54% were well differentiated. A large majority were pT2 or pT3 and N0. Carcinomas of pancreatic head were also more common in males, mean age was 55 years, mean tumor size was 3.5cms, and over 65% were moderately differentiated. The majority were T2 or T3 and pN1. Prognostically, significant statistical correlation was seen with tumor grade and pathologic T and N stage (p values statistically significant). However, tumor size was not statistically significant. Conclusions: Ampullary carcinomas are more common compared to pancreatic carcinomas. Majority of ampullary carcinomas were well differentiated while majority of pancreatic carcinomas were moderately differentiated. Large majority of both types of cases were pT2 or T3. Histologic tumor grade and pathologic T and N stage are significantly related to prognosis in Pakistani patients with ampullary and pancreatic cancers.

• 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.

• Korean Journal of Radiology
• /
• 제20권5호
• /
• pp.781-790
• /
• 2019

Objective: To assess the relationship between contrast-enhanced ultrasound (CEUS) parameters and perfusion CT (PCT) parameters of gastric cancers and their correlation with histologic features. Materials and Methods: This prospective study was approved by our Institutional Review Board. We included 43 patients with pathologically-proven gastric cancers undergoing CEUS using SonoVue^® (Bracco) and PCT on the same day. Correlation between the CEUS parameters (peak intensity [PI], area under the curve [AUC], rise time [RT] from 10% to 90% of PI, time to peak [TTP_US], and mean transit time [MTT_US]) and PCT parameters (blood flow, blood volume, TTP_CT, MTT_CT, and permeability surface product) of gastric cancers were analyzed using Spearman's rank correlation test. In cases of surgical resection, the CEUS and PCT parameters were compared according to histologic features using Mann-Whitney test. Results: CEUS studies were of diagnostic quality in 88.4% (38/43) of patients. Among the CEUS parameters of gastric cancers, RT and TTP_US showed significant positive correlations with TTP_CT (rho = 0.327 and 0.374, p = 0.045 and 0.021, respectively); PI and AUC were significantly higher in well-differentiated or moderately-differentiated tumors (n = 4) than poorly-differentiated tumors (n = 18) (p = 0.026 and 0.033, respectively), whereas MTT_CT showed significant differences according to histologic types (poorly cohesive carcinoma [PCC] vs. non-PCC), T-staging (≤ T2 vs. ≥ T3), N-staging (N0 vs. N-positive), and epidermal growth factor receptor expression (≤ faint vs. ≥ moderate staining) (p values < 0.05). Conclusion: In patients with gastric cancers, CEUS is technically feasible for the quantification of tumor perfusion and may provide correlative and complementary information to that of PCT, which may allow prediction of histologic features.

• Journal of Korean Neurosurgical Society
• /
• 제30권7호
• /
• pp.925-927
• /
• 2001

Multiple intracranial tumors of different cell types are rare. We report a case of double primary intracranial tumors of different histologic types : oligodendroglioma, and pituitary adenoma. Von Recklinghausen's disease or other etiologic factors supposedly associated with multiple brain tumors were not recognized in this 36-year-old male patient.

• Radiation Oncology Journal
• /
• 제30권3호
• /
• pp.108-116
• /
• 2012

Purpose: To investigate the prognostic factors and effectiveness of postoperative radiotherapy alone for endometrial carcinoma. Materials and Methods: Sixty four patients with stage I-III endometrial cancer (EC) treated with postoperative radiotherapy alone between January 1989 and December 2008 at the Keimyung University Dongsan Medical Center were chosen for the present study. Typically, total hysterectomy, salpingo-oophorectomy and lymphadenectomy were performed on the patient's pelvis. Total dose from 50.4 Gy to 63 Gy was irradiated at pelvis or extended field. Thirteen patients were treated with Co-60 or Ir-192 intracavitary radiotherapy. Follow-up periods were from 7 to 270 months, with a median of 56 months. Results: Five year overall survival (OS) rate was 58.7%, respectively. Five year disease-free survival (DFS) rate was 59.2%, respectively. In univariate analysis for OS and DFS, stage, menopausal age, type of operation, serosal invasion, and lymph node involvement were found to be statistically significant. Histologic type was marginally significant. In multivariate analysis for OS and DFS, stage, types of operation, histologic type were also found to be statistically significant. Treatment failure occurred in 14 patients. The main pattern of failure was found to be distant metastasis. Time to distant metastasis was from 3 to 86 months (median, 12 months). There were no grade 3 or 4 complications. Conclusion: Stage, types of operation, and histologic type could be the predictive prognostic factors in patients. We contemplated postoperative radiation as effective and safe treatment method for EC. Additional treatment would be needed to reduce distant metastasis.

• Asian Pacific Journal of Cancer Prevention
• /
• 제15권7호
• /
• pp.3065-3070
• /
• 2014

Background: Neuroblastoma (NB), is a neuroectodermal tumor derived from neural crest cells, and it is the second most common pediatric malignant tumor. The biological and clinical behavior of NB is very heterogeneous. This study was conducted to evaluate the expression of Ki-67, p53 and VEGF markers in tissues obtained from NB patients with different histologic types and stage. Materials and Methods: Tissue microarray (TMA) blocks were constructed from paraffin blocks of the NB tissues. Immunohistochemical staining was performed on TMA sections to detect the expression of Ki-67, p53 and VEGF markers. The association between the expression of these markers and clinicopathological parameters were then analyzed. Results: We had 18 patients with NB, one patient with ganglioneuroblastoma (GNB) and one with ganglioneuroma. Ki-67 was expressed in 13 (65%) tumors, and negatively correlated with age, prognosis, histologic type and stage of NB (all p<0.05). High and moderate expression of VEGF was found in 5% (1/20) and 65% (13/20) of the tumors, respectively; and it was positively correlated with age, prognosis and histologic types (all p<0.05) and negatively correlated with MKI (mitosis-karyorrhexis index). p53 expression was observed in 10% (2/20) of the tumors, which showed a relative correlation with MKI (p value=0.07). Conclusions: VEGF as a candidate for anti-angiogenic targeted therapy was correlated with the development and progression of NB; therefore, VEGF along with Ki-67 can serve as a valuable marker for the prognosis of this tumor type.

• Advances in pediatric surgery
• /
• 제5권1호
• /
• pp.45-52
• /
• 1999

Pediatric solid tumors have many histologic similarity. These tumors contained small round cell types, and cause frequent diagnostic problems in pediatric pathology. An important advance in the differentiation of these small round cell tumors has been the identification of consistent chromosomal translocations associated with several types of tumors. Eighteen patients with soft tissue sarcoma were available for review. Seventeen cell lines were also included in this study. The RNA from the specimens were analyzed by reverse transcriptase-polymerase chain reaction (RT-PCR). PAX3-FKHR fusion was present in four of five alveolar rhabdomyosarcoma and PAX7-FKHR fusion was detected in one of five alveolar rhabdomyosarcoma. None of the specimens expressed more than one chimeric transcript. EWS-FLI1 or EWS-ERG fusions were detected in all seven Ewings' sarcoma. No specimens showed EWS-WT1 fusion. These results corresponded well to the histopathologic diagnosis. There were no differences in the histologic appearances of tumors with the more frequent PAX3-FKHR or EWS-FLI1 fusions compared with those containing the variant PAX7-FKHR or EWS-ERG fusions. RT-PCR assay for chimeric transcript is a useful tool for rapid and objective diagnosis of pediatric solid tumors. Through these tools, we can approach genetically to the differential diagnosis of undifferentiated small round tumors.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• 제37권
• /
• pp.27.1-27.7
• /
• 2015

The aim of this study was to evaluate the clinical relevance of autogenous fresh demineralized tooth (Auto-FDT) prepared at chairside immediately after extraction for socket preservation. Teeth were processed to graft materials in block, chip, or powder types immediately after extraction. Extraction sockets were filled with these materials and dental implants were installed immediately or after a delay. A panoramic radiograph and a conebeam CT were taken. In two cases, tissue samples were taken for histologic examination. Vertical and horizontal maintenance of alveolar sockets showed some variance depending on the Auto-FDT and barrier membrane types used. Radiographs showed good bony healing. Histologic sections showed that it guided good new bone formation and resorption pattern of the Auto-FDT. This case series shows that Auto-FDT prepared at chairside could be a good material for the preservation of extraction sockets. This study will suggest the possibility of recycling autogenous tooth after immediate extraction.

• 대한세포병리학회지
• /
• 제5권1호
• /
• pp.71-73
• /
• 1994

Rhabdomyosarcomas are found mainly in young patients, but rare in adults. A correlated cytological and histologic study of one case of embryonal rhabdomyosarcoma is presented. The cytologic appearance of the urine smear corresponded well with the histologic findings. Cytologically, two main cell types were distinguished ; a predominant primitive, small round cell with scant cytoplasm and a large cell with abundant cytoplasm. The cytologic feature proving rhabdomyoblastic differentiation, such as cross-striation, was absent.