A Canine Model of Familial Mammary Gland Neoplasia

1998 ◽  
Vol 35 (3) ◽  
pp. 168-177 ◽  
Author(s):  
K. A. Schafer ◽  
G. Kelly ◽  
R. Schrader ◽  
W. C. Griffith ◽  
B. A. Muggenburg ◽  
...  
Keyword(s):  
Proportional Hazards ◽  
Age Of Onset ◽  
Malignant Tumors ◽  
Tumor Incidence ◽  
Benign Tumors ◽  
Tumor Type ◽  
Familial Predisposition ◽  
Kaplan Meier ◽  
Resistant Family ◽  
Familial Differences

Intact female Beagles from life-span studies in the Lovelace Respiratory Research Institute colony were examined for mammary tumor incidence. The breeding colony, founded in 1963, produced five generations from 28 founder females. After proportional hazards analysis, two maternal families were shown to have markedly different phenotypes, one susceptible and one resistant to mammary neoplasia, as compared with the entire colony. When tumors were subdivided into benign and malignant based on local invasiveness, familial differences in tumor incidence were preserved for each tumor type. Fifty-seven females in the susceptible family developed 149 benign and 39 malignant tumors, and 95 females in the resistant family developed 70 benign and 20 malignant tumors. The ratio of benign to malignant tumors of about 4:1 for both families was higher than expected. Using Kaplan–Meier and log-rank analyses, the susceptible family had a 50% malignant tumor incidence by age 13.6 years, whereas the resistant family did not have a 50% incidence until 17.0 years ( P = 0.0065). Because of marked censoring, Kaplan–Meier analyses could not provide an estimate of the 50% benign tumor incidence; mean incidence age was calculated instead. These estimates for benign tumors for susceptible and resistant families were 10.8 and 13.8 years ( P = 0.0001), respectively. Using χ2 tests, families had no differences in the occurrence of the types of benign ( P = 0.098) or malignant ( P = 0.194) tumors or in the ratio of benign to malignant tumors ( P = 0.778). Immunohistochemical analysis of malignant tumors from both families did not demonstrate differences in p53 mutation rate or p185 erbB-2 expression. These results suggest that 1) genetic factors produce familial differences in the age of onset of both benign and malignant mammary tumors; histologic types do not segregate by family; 2) the ratio of benign to malignant tumors is greater than formerly reported; and 3) neither p53 nor p185 erbB-2 alterations are the basis for the familial predisposition.

Risk of Metastatic Ovarian Involvement in Nongynecologic Malignancies

2012 ◽  
Vol 22 (1) ◽  
pp. 3-8 ◽  
Author(s):  
Kidong Kim ◽  
Soo Youn Cho ◽  
Sang-Il Park ◽  
Hye Jin Kang ◽  
Beob-Jong Kim ◽  
...  
Keyword(s):  
Overall Survival ◽  
Malignant Tumors ◽  
Rank Test ◽  
Benign Tumors ◽  
Binary Logistic Regression Analysis ◽  
Fisher Exact Test ◽  
Tumor Type ◽  
Metastatic Tumors ◽  
Number Of Patients ◽  
Adnexal Tumors

ObjectiveThe objectives were to evaluate the risk of malignant adnexal tumors in women with nongynecologic malignancies and to identify variables associated with the risk of malignant adnexal tumors.MethodsThe eligibility criteria included the diagnosis of a nongynecologic malignancy and adnexal tumors, which were resected or subjected to biopsy at our institute between 1999 and 2010. The risk of malignant adnexal tumors was assessed by dividing the number of patients with metastatic tumors to the adnexa or primary adnexal cancers by the total number of patients. The association of clinicopathologic variables with the risk of malignant adnexal tumors was evaluated using the Fisher exact test and binary logistic regression analysis. In patients with metastatic tumors to the adnexa, the association of clinicopathologic variables with overall survival after adnexal surgery was examined using the log-rank test.ResultsIn 166 patients with adnexal tumors, 41 benign tumors, 113 metastatic tumors to the adnexa, and 12 primary adnexal cancers were diagnosed. Age older than 46 years, a tumor type associated with a high risk for malignant adnexal tumors, and bilateral tumors significantly increased the risk of malignant adnexal tumors. The overall survival of the patients with stomach cancer was significantly worse than the patients with colorectal or breast cancers.ConclusionOne hundred twenty-five of the 166 patients with nongynecologic malignancies who had adnexal tumors managed surgically were shown to have malignant tumors, and most of the tumors were metastatic from primary sites. The risk of malignant adnexal tumors was associated with age, nongynecologic malignancy, and bilaterality.

Sulfatides in ovarian tumors: clinicopathological correlates

2004 ◽  
Vol 14 (1) ◽  
pp. 89-93 ◽  
Author(s):  
A. M. Makhlouf ◽  
M. M. Fathalla ◽  
M. A. Zakhary ◽  
M. H. Makarem
Keyword(s):  
Malignant Tumors ◽  
Early Stage ◽  
Ovarian Tumors ◽  
University Hospital ◽  
Benign Tumors ◽  
Control Group ◽  
Tumor Type ◽  
Cross Sectional ◽  
Response To Chemotherapy ◽  
Advanced Stages

ObjectivesTo investigate the expression of sulfatides in the tissue homogenates of malignant ovarian tumors, benign ovarian tumors, and control tissues and to study the relation between this marker and other clinico-pathological criteria such as the tumor type, grade of differentiation, surgical stage and ovulatory years.DesignCross-sectional study.SettingDepartment of Obstetrics and Gynecology and Department of Biochemistry, Assuit university hospital.SubjectsForty-six patients had malignant ovarian tumors. Sixteen patients had benign ovarian neoplasm. Thirty patients, with normal ovaries, represented the control group.MethodsA sample of the tumor or from the normal ovary (the control group) was sent for histopathological and biochemical examination. Sulfatides were measured by a rapid and sensitive spectrophotometric method.ResultsThere was a significant rise in benign tumors [median and range 43 (38–53)], than in the control group, 21 (18–31), P-value = 0.000. In malignant tumors, the median value of sulfatides was significantly higher than in benign tumors [127 (71–193), P-value = 0.000]. Sulfatides were significantly higher in patients with more ovulatory years and tumors of advanced stages (stage III/IV) and poor differentiation.ConclusionsSulfatides may play a role in the pathogenesis of benign and malignant ovarian tumors. It may also predict advanced stages in patients who are apparently early stage. It is also a candidate to study of their association with response to chemotherapy.

Retrospective Evaluation of Lingual Tumors in 42 Dogs: 1999–2005

2008 ◽  
Vol 44 (6) ◽  
pp. 308-319 ◽  
Author(s):  
Jason A. Syrcle ◽  
Jennifer J. Bonczynski ◽  
Sebastien Monette ◽  
Philip J. Bergman
Keyword(s):  
Prognostic Factors ◽  
Retrospective Study ◽  
Benign Tumor ◽  
Malignant Tumors ◽  
Benign Tumors ◽  
Tumor Type ◽  
Retrospective Evaluation ◽  
Short Term ◽  
Drinking Habits

In this retrospective study of 42 cases of lingual tumors in dogs, 27 (64%) were malignant, and 15 (36%) were benign. Median survival time for dogs with benign tumors was >1607 days, compared to 286 days for malignant tumors. Prognostic factors significantly associated with increased survival included complete histological margins (P=0.036), smaller tumor size (P=0.003), and benign tumor type (P=0.011). Smaller tumors were more likely to be completely resected (P=0.008) and were less likely to recur (P=0.001). Partial or subtotal glossectomies were performed in 13 cases. Short-term morbidity associated with glossectomy included ptyalism and dehiscence. Long-term morbidity included minor changes in eating and drinking habits.

scholarly journals Renal tumors: Age spectrum and histological distribution across childhood

2020 ◽  
Author(s):  
Tingting Liu ◽  
Lika’a Fasih Y. Al-Kzayer ◽  
Yozo Nakazawa ◽  
lei chen
Keyword(s):  
Early Childhood ◽  
Age Of Onset ◽  
Wilms Tumor ◽  
Malignant Tumors ◽  
Age Distribution ◽  
Clear Cell Sarcoma ◽  
Renal Tumors ◽  
Benign Tumors ◽  
Congenital Mesoblastic Nephroma ◽  
The Relationship

Abstract BackgroundThe objective of this study was to identify the relationship between the histopathological distribution of renal tumors and the age parameter across childhood period and to compare that with the available literature.MethodsA total of 193 pediatric patients with renal tumors were classified into 5 groups as embryo, infant, early childhood, childhood, and adolescent. Age distribution, pathological types and clinical characteristics were summarized. ResultsAmong the 193 patients, 95.8% presented with malignant tumors, and 4.2% showed benign tumors. The prevalence of Wilms’ tumor (WT( and non-WT, were 63.7% and 36.3%, respectively. Non-WT patients included clear cell sarcoma of the kidney (CCSK), followed by rhabdoid tumor of the kidney (RTK), congenital mesoblastic nephroma (CMN), cystic partially differentiated nephroblastoma (CPDN), and renal cell carcinoma (RCC). Early childhood (89/193, 46.2%) was the most common period of onset, followed by infant (73/193, 37.9%), childhood (19/193, 9.8%), embryo (8/193, 4.1%) and adolescent (4/193, 2.0%). WT predominantly occurred in infant and early childhood and decreased among older age group. Non-WT occurred various period of onset and rather common during embryo. 10.9% of patients were asymptomatic at the time of diagnosis and that was significantly observed in non-WT (P=0.04). ConclusionsAge of onset is a highly significant factor for pediatric renal tumors. Relationship between age spectrum and pathological characteristics influences distinguishing the histopathological distribution of WT and non-WT.

scholarly journals PROFIL TUMOR JINAK KULIT DI POLIKLINIK KULIT DAN KELAMIN RSUP PROF. DR. R. D KANDOU MANADO PERIODE 2009-2011

e-CliniC ◽  
2013 ◽  
Vol 1 (1) ◽  
Author(s):  
Grace Agustin Gefilem
Keyword(s):  
Medical Records ◽  
Malignant Tumors ◽  
Skin Tumor ◽  
Benign Tumors ◽  
Tumor Type ◽  
Age Group ◽  
Seborrheic Keratosis ◽  
Men And Women ◽  
Verruca Vulgaris ◽  
Dermatology Clinic

Abstract: Introduction: Benign skin tumor manifestation of chaos skin growths that are congenital or akuisita, without the invasive and metastatic tendency, can be derived from vascular and non-vascular. Benign tumors was often said to be dangerouly because it is not develop into malignant tumors, howver skin tumor needs to be understood because causing disability (ruin the appearance) and also at an advanced stage can be fatal in body health.Objective: To know the profile of patients benign skin tumor, age, gender and employment in the Dermatology Clinic Dr Prof Dr. R. D. Kandou Manado for 3 years (January 2009 - December 2011). Subjects and Methods: A retrospective study of benign skin tumor of the medical records of new patients based on tumor type, age, sex, and occupation.Results: There were 478 (15.65%) patients of benign skin tumor among 3055 new patients. Verruca vulgaris (28.03%) and seborrheic keratosis (24.69%) most frequently encountered. Highest age group is 15-44 years is 49.16%. The ratio of men and women for benign skin tumor is 1:1,12. Most jobs are housewives (26.36%). Conclusion: verruca vulgaris is the most benign skin tumor. Benign skin tumor was more common in women. Highest age group is 15-44 years. Most jobs are housewives.Keywords: skin tumors, benignAbstrakPendahuluan: Tumor jinak kulit merupakan manifestasi dari kekacauan pertumbuhan kulit yang bersifat kongenital atau akuisita, tanpa tendensi invasif dan metastasis, dapat berasal dari vaskuler dan non vaskuler. Tumor jinak sering dikatakan tidak berbahaya karena tidak sampai berkembang menjadi keganasan namun demikian, tumor kulit perlu dipahami karena selain menyebabkan kecacatan (merusak penampilan) juga pada stadium lanjut dapat berakibat fatal kesehatan tubuh.Tujuan: Mengetahui profil pasien tumor jinak kulit berdasarkan jenis tumor, umur, jenis kelamin dan pekerjaan di Poliklinik Kulit dan Kelamin RSUP Prof Dr. R. D. Kandou Manado selama 3 tahun (Januari 2009- Desember 2011).Subyek dan Metode: Penelitian retrospektif tumor jinak kulit terhadap catatan medis kasus baru berdasarkan jenis tumor, usia, jenis kelamin, dan pekerjaan.Hasil: Terdapat 478 (15,65 %) pasien tumor jinak kulit di antara 3055 pasien baru. Veruka vulgaris (28,03%) dan keratosis seboroik (24,69%) paling sering dijumpai. Kelompok usia terbanyak adalah 15–44 tahun sejumlah 49,16%. Rasio laki-laki dan perempuan untuk tumor jinak kulit ialah 1:1,12. Pekerjaan terbanyak ialah ibu rumah tangga (26,36%).Kesimpulan: Veruka vulgaris merupakan tumor kulit jinak terbanyak. Tumor kulit jinak lebih sering terjadi pada perempuan. Kelompok usia tertinggi adalah 15–44 tahun. Pekerjaan terbanyak adalah ibu rumah tangga.Kata kunci: tumor kulit, jinak

scholarly journals Factors associated with survival in patients with meningioma

1997 ◽  
Vol 2 (4) ◽  
pp. E3 ◽  
Author(s):  
Bridget J. McCarthy ◽  
Faith Davis ◽  
Sally Freels ◽  
Tanya S. Surawicz ◽  
Denise Damek ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Prognostic Factors ◽  
Survival Rate ◽  
Program Analysis ◽  
Proportional Hazards ◽  
Proportional Hazards Model ◽  
Malignant Tumors ◽  
Survival Rates ◽  
Age At Diagnosis ◽  
Benign Tumors

Factors affecting the survival rate in patients with meningiomas were explored using the National Cancer Database (NCDB), which includes tumors from approximately 1000 hospitals participating in the American College of Surgeons tumor registry program. Analysis included over 9000 cases diagnosed from 1985 to 1988 and 1990 to 1992. Survival estimates were computed and prognostic factors were identified using a proportional hazards model. The overall 5-year survival rate was 69% and it declined with age. This rate was 81% in patients aged 21 to 64 and 56% for patients 65 years of age or older. When patients were grouped by the histological type of their tumors, those with benign tumors had an overall 5-year survival rate of 70%, whereas the overall 5-year survival rates in patients with atypical and malignant meningiomas were 75% and 55%, respectively. Prognostic factors for benign tumors included age at diagnosis, tumor size, whether treated surgically, hospital type, and radiation therapy; for malignant tumors, age at diagnosis, whether treated surgically, and radiation therapy were statistically significant. The 5-year rate for recurrence of symptoms (regardless of the method of treatment) was 18.2% for those with benign tumors and 27.5% for those with malignant tumors. In patients whose benign tumor had been completely removed, the 5-year rate of tumor recurrence was 20.5%. Although not population-based, the NCDB has the potential for providing pertinent information regarding patient characteristics and methods of treatment for benign, as well as malignant, brain tumors.

scholarly journals Neoplasm Risk Among Individuals With a Pathogenic Germline Variant in DICER1

2019 ◽  
Vol 37 (8) ◽  
pp. 668-676 ◽  
Author(s):  
Douglas R. Stewart ◽  
Ana F. Best ◽  
Gretchen M. Williams ◽  
Laura A. Harney ◽  
Ann G. Carr ◽  
...  
Keyword(s):  
Cancer Incidence ◽  
Cumulative Incidence ◽  
Malignant Tumors ◽  
Pleuropulmonary Blastoma ◽  
Benign Tumors ◽  
Cystic Nephroma ◽  
Kaplan Meier ◽  
Pathogenic Variation ◽  
Dicer1 Syndrome ◽  
Pathology Reports

Purpose DICER1 syndrome is an autosomal-dominant, pleiotropic tumor-predisposition disorder caused by pathogenic germline variants in DICER1. We sought to quantify risk, hazard rates, and the probability of neoplasm incidence accounting for competing risks (“cumulative incidence”) of neoplasms (benign and malignant) and standardized incidence ratios for malignant tumors in individuals with DICER1 pathogenic variation. Patients and Methods We combined data from three large cohorts of patients who carry germline pathogenic variation in DICER1. To reduce ascertainment bias, we distinguished probands from nonprobands. Neoplasm diagnoses were confirmed by review of pathology reports and/or central review of surgical pathology materials. Standardized cancer incidence ratios were determined relative to the SEER program, which does not capture all DICER1-associated neoplasms. For all malignancies and benign tumors (“neoplasms,” excluding type Ir pleuropulmonary blastoma and thyroid nodules), we used the Kaplan-Meier method and nonparametric cumulative incidence curves to estimate neoplasm-free survival. Results We calculated the age at first neoplasm diagnosis (systematically ascertained cancers plus DICER1-associated neoplasms pleuropulmonary blastoma, cystic nephroma, and nasal chondromesenchymal hamartoma) in 102 female and male nonproband DICER1 carriers. By age 10 years, 5.3% (95% CI, 0.6% to 9.7%) of nonproband DICER1 carriers had developed a neoplasm (females, 4.0%; males, 6.6%). By age 50 years, 19.3% (95% CI, 8.4% to 29.0%) of nonprobands had developed a neoplasm (females, 26.5%; males, 10.2%). After age 10 years, female risk was elevated compared with male risk. Standardized cancer incidence ratio analysis of 102 nonproband DICER1 carriers, which represented 3,344 person-years of observation, showed significant cancer excesses overall, particularly of gynecologic and thyroid cancers. Conclusion This work provides the first quantitative analysis of site-specific neoplasm risk and excess malignancy risk in 102 systematically characterized nonproband DICER1 carriers. Our findings inform DICER1 syndrome phenotype, natural history, and genetic counseling.

scholarly journals Epidemiology, Clinical Presentation, and Prognosis of Pediatric Brain Tumors: Experience of National Center for Children’s Health

2021 ◽  
Author(s):  
wei yang ◽  
Yingjie Cai ◽  
Jiashu Chen ◽  
Ping Yang ◽  
Zesheng Ying ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Clinical Presentation ◽  
Malignant Tumors ◽  
World Health ◽  
Benign Tumors ◽  
Symptom Duration ◽  
Tumor Type ◽  
Astrocytic Tumors ◽  
Embryonal Tumors ◽  
Initial Symptoms

Abstract Objective Brain tumors have become the most common solid tumors in children. The epidemiology is poorly described in China. This retrospective study aimed to describe the epidemiologic characteristics, clinical presentation, and prognosis in national health center for children. Method From January 2015 to December 2020, 484 cases age 0-18 years old diagnosed with brain tumors and receiving neurosurgery treatment were enrolled into the database. Pathology was based on the World Health Organization 2012 nervous system tumor classification, and tumor behavior were classified on International Classification of Diseases for Oncology, third edition. A descriptive and comparative statistic was performed on clinical manifestation, symptom duration, sex, age, tumor location, tumor behavior, and survival time. Results Among the 484 brain tumors, the median age at diagnosis was 4.62 [2.19, 8.17] years old (4.07 [1.64, 7.13] for benign tumors and 5.36 [2.78, 8.84] for malignant tumors). The overall male to female ratios were 1.33:1, with 1.09:1 and 1.62:1 for benign and malignant tumors respectively. Nausea and vomiting, headache were the most frequent initial symptoms. The median symptoms duration was 4[2, 21] weeks. The three most frequent tumor type were embryonal tumors (22.45%), other astrocytic tumors (20.17%), and diffuse astrocytic tumors (11.02%). Supratentorial tumors comprise 57.38% of all brain tumors. And the most common tumor locations were cerebellum and forth ventricles (38.67%), sellar region (22.87%) and ventricles (10.60%). Male were more common among choroid plexus tumors (63.64%), embryonal tumors (61.11%), ependymal tumors (68.57%), and germ cell tumors (78.13%). Patients were followed for 1 to 82 months. The overall 5-year survival was 77.4%, with 90.0% for benign tumor and 65.3% for malignant tumors. log-rank test found significant different at p <0.001 level. Conclusion Brain tumors presented particularly sexual, age dependent, and regional dependent epidemiological characteristic. Our results were consistent with previous reports, and might reflect the real epidemiology status in China.

scholarly journals Renal tumors: Age spectrum and histological distribution across childhood

2020 ◽  
Author(s):  
Tingting Liu ◽  
Lika’a Fasih Y. Al-Kzayer ◽  
Yozo Nakazawa ◽  
lei chen
Keyword(s):  
Early Childhood ◽  
Age Of Onset ◽  
Wilms Tumor ◽  
Malignant Tumors ◽  
Age Distribution ◽  
Clear Cell Sarcoma ◽  
Renal Tumors ◽  
Benign Tumors ◽  
Congenital Mesoblastic Nephroma ◽  
The Relationship

Abstract Background: The objective of this study was to identify the relationship between the histopathological distribution of renal tumors and the age parameter across childhood period and to compare that with the available literature. Methods: A total of 193 pediatric patients with renal tumors were classified into 5 groups as embryo, infant, early childhood, childhood, and adolescent. Age distribution, pathological types and clinical characteristics were summarized. Results: Among the 193 patients, 95.8% presented with malignant tumors, and 4.2% showed benign tumors. The prevalence of Wilms’ tumor (WT( and non-WT, were 63.7% and 36.3%, respectively. Non-WT patients included clear cell sarcoma of the kidney (CCSK), followed by rhabdoid tumor of the kidney (RTK), congenital mesoblastic nephroma (CMN), cystic partially differentiated nephroblastoma (CPDN), and renal cell carcinoma (RCC). Early childhood (89/193, 46.2%) was the most common period of onset, followed by infant (73/193, 37.9%), childhood (19/193, 9.8%), embryo (8/193, 4.1%) and adolescent (4/193, 2.0%). WT predominantly occurred in infant and early childhood and decreased among older age group. Non-WT occurred various period of onset and rather common during embryo. 10.9% of patients were asymptomatic at the time of diagnosis and that was significantly observed in non-WT (P=0.04). Conclusions: Age of onset is a highly significant factor for pediatric renal tumors. Relationship between age spectrum and pathological characteristics influences distinguishing the histopathological distribution of WT and non-WT.

Parotid Tumors: Fine-Needle Aspiration and/or Frozen Section

2008 ◽  
Vol 139 (6) ◽  
pp. 811-815 ◽  
Author(s):  
Peter Zbären ◽  
Dominique Guélat ◽  
Heinz Loosli ◽  
Edouard Stauffer
Keyword(s):  
Sensitivity And Specificity ◽  
Fine Needle Aspiration ◽  
Malignant Tumors ◽  
Frozen Section ◽  
Needle Aspiration ◽  
Benign Tumors ◽  
Malignant Neoplasms ◽  
Tumor Type ◽  
Fine Needle ◽  
Parotid Tumors

Objective The purpose of this study was to analyze and compare the value of fine-needle aspiration cytology (FNAC) and frozen section (FS) analysis in the assessment of parotid gland tumors. Study Design Chart review and cross-sectional analysis. Subjects and Methods FNAC and FS analysis of 110 parotid tumors, 68 malignancies and 42 benign tumors, were analyzed and compared with the final histopathologic diagnosis. Results The accuracy, sensitivity, and specificity of FNAC in detecting malignant tumors were 79 percent, 74 percent, and 88 percent, respectively. On FS analysis, the accuracy, sensitivity, and specificity in detecting malignant tumors were 94 percent, 93 percent, and 95 percent, respectively. The histologic tumor type was correctly diagnosed by FNAC and FS in 27 of 42 (64%) and 39 of 42 (93%) benign tumors, respectively, and in 24 of 68 (35%) and 49 of 68 (72%) malignant neoplasms, respectively. Conclusion The current analysis showed a superiority of FS compared with FNAC regarding the diagnosis of malignancy and tumor typing. FNAC alone is not prone to determine the surgical management of parotid malignancies.

Sign in / Sign up

Export Citation Format

Share Document