6 results on '"Yildiz-Aktas IZ"'
Search Results
2. Respiratory Cytology--Current Trends Including Endobronchial Ultrasound-Guided Biopsy and Electromagnetic Navigational Bronchoscopy: Analysis of Data From a 2013 Supplemental Survey of Participants in the College of American Pathologists Interlaboratory Comparison Program in Nongynecologic Cytology.
- Author
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Sturgis CD, Marshall CB, Barkan GA, Booth CN, Kurtycz DF, Souers RJ, Keylock JB, Tabatabai ZL, Russell DK, Moriarty AT, Doyle MA, Thomas N, Yildiz-Aktas IZ, Collins BT, Laucirica R, and Crothers BA
- Subjects
- Bronchoscopy methods, Endosonography, Humans, Image-Guided Biopsy methods, Laboratories, Lung diagnostic imaging, Pathology, Clinical methods, Surveys and Questionnaires, Ultrasonography, Interventional methods, United States, Bronchoscopy trends, Cytodiagnosis trends, Image-Guided Biopsy trends, Lung Diseases diagnostic imaging, Pathology, Clinical trends, Ultrasonography, Interventional trends
- Abstract
Context: Nongynecologic cytology (NGC) practices are expanding in relationship to historical gynecologic cytology screening programs. Bronchopulmonary cytology is experiencing an evolution regarding new procedural types. The College of American Pathologists (CAP) tracks practice patterns in NGC by developing questionnaires, surveying participants, and analyzing respondent data., Objective: To analyze responses to a 2013 CAP supplemental survey from the Interlaboratoy Comparison Program on bronchopulmonary NGC., Design: The "NGC 2013 Supplemental Questionnaire: Demographics in Performance and Reporting of Respiratory Cytology" was mailed to 2074 laboratories., Results: The survey response rate was 42% (880 of 2074) with 90% of respondents (788 of 880) indicating that their laboratories evaluated cytology bronchopulmonary specimens. More than 95% of respondents indicated interpreting bronchial washings (765 of 787) and bronchial brushings (757 of 787). A minority of laboratories (43%, 340 of 787) dealt with endobronchial ultrasound-guided samples, and an even smaller fraction of laboratories (14%, 110 of 787) saw cases from electromagnetic navigational bronchoscopy. Intraprocedural adequacy assessments by pathologists (and less often by cytotechnologists or pathologists-in-training) were routinely performed in percutaneous transthoracic aspiration cases (74%, 413 of 560) with less involvement for other case types. Most laboratories reported that newly diagnosed primary pulmonary adenocarcinomas were triaged for molecular testing of epidermal growth factor receptor and anaplastic lymphoma kinase., Conclusions: The parameters examined in this 2013 survey provide a snapshot of current pulmonary cytopathology practice and may be used as benchmarks in the future.
- Published
- 2016
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3. Primary pulmonary non-small cell carcinomas: the College of American Pathologists Interlaboratory Comparison Program confirms a significant trend toward subcategorization based upon fine-needle aspiration cytomorphology alone.
- Author
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Yildiz-Aktas IZ, Sturgis CD, Barkan GA, Souers RJ, Fraig MM, Laucirica R, Khalbuss WE, and Moriarty AT
- Subjects
- Carcinoma, Non-Small-Cell Lung classification, Carcinoma, Non-Small-Cell Lung surgery, Humans, Lung Neoplasms classification, Lung Neoplasms surgery, Biopsy, Fine-Needle, Carcinoma, Non-Small-Cell Lung diagnosis, Cytodiagnosis standards, Lung Neoplasms diagnosis, Pathology, Clinical standards
- Abstract
Context.-Subtyping of non-small cell lung carcinomas (NSCLCs) is necessary for optimal patient management with specific diagnoses triggering specific molecular tests and affecting therapy. Objective.-To assess the accuracy of the participants of the College of American Pathologists Interlaboratory Comparison Program in diagnosing and subtyping NSCLC fine-needle aspiration (FNA) slides, based on morphology alone, considering preparation and participant type and trends over time. Design.-The performance of program participants was reviewed for the 5-year period spanning 2007-2011. Lung FNA challenges with reference diagnoses of adenocarcinoma and squamous cell carcinoma (SCC) were evaluated for diagnostic concordance by using a nonlinear mixed model analysis. Results.-There were 10 493 pathologist and 6378 cytotechnologist responses with concordance rates of 97.4% and 97.9% for malignancy, respectively. Overall concordance rates for subcategorization were 54.6% for adenocarcinoma and 74.9% for SCC. For the exact reference diagnoses, pathologists performed better for adenocarcinoma and cytotechnologists performed better for SCC. Accurate subcategorization of adenocarcinomas significantly increased over time with 31.5% of adenocarcinomas classified as NSCLC in 2007 and 25.5% of adenocarcinomas classified as NSCLC in 2011 (P < .001). In comparing preparation types, modified Giemsa-stained smears showed the lowest overall concordance (46.8%). Modified Giemsa-stained smears with SCCs were the least likely to be accurately subcategorized (36.4%). Conclusions.-Participants are proficient at interpreting NSCLCs as malignant by FNA but are less successful at subcategorization with cytomorphology alone. During the study period, a statistically significant trend was confirmed toward greater accuracy of subcategorization of adenocarcinomas, suggesting that participants are cognizant of the impact that more specific cytomorphologic interpretations have in directing molecular triage and therapy.
- Published
- 2014
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4. The effect of cold ischemic time on the immunohistochemical evaluation of estrogen receptor, progesterone receptor, and HER2 expression in invasive breast carcinoma.
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Yildiz-Aktas IZ, Dabbs DJ, and Bhargava R
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- Biomarkers, Tumor analysis, Biopsy, Large-Core Needle, Breast Neoplasms chemistry, Breast Neoplasms surgery, Carcinoma, Ductal, Breast chemistry, Carcinoma, Ductal, Breast surgery, Cold Ischemia, Female, Fixatives, Humans, Prospective Studies, Staining and Labeling, Time Factors, Tissue Fixation methods, Breast Neoplasms pathology, Carcinoma, Ductal, Breast pathology, Cryopreservation methods, Immunohistochemistry methods, Receptor, ErbB-2 analysis, Receptors, Estrogen analysis, Receptors, Progesterone analysis
- Abstract
The American Society of Clinical Oncology/College of American Pathologist (ASCO/CAP) guidelines on breast cancer currently recommend a cold ischemic time of <1 h, although data are limited. Breast resection specimens were subjected to variable cold ischemic time periods (0.5, 1, 2, 3, 4, 24, and 48 h) within the refrigerator and at room temperature. The study included 25 tumors, all of which had refrigerated samples. Non-refrigerated samples (samples at room temperature) were present on 23 cases. Hormone receptors were semi-quantitatively scored using the H-score method. Human epidermal growth factor receptor 2 gene ERBB2 (HER2) was scored using the ASCO/CAP guidelines. The results were compared with the core biopsy scores, which have negligible cold ischemic time period before fixation. Mild reduction in staining for hormone receptors was judged present if the H-score on the resection specimen was between one-half and three-fourth of the H-score at core biopsy. Significant reduction was judged present when the H-score on resection was less than one-half of the core biopsy H-score. Mild reduction in HER2 staining was judged present if there was one-step reduction; and significant reduction was judged present if there was two-step reduction in staining. A true reduction was judged present only when the reduction was consistently present for the increasing time interval. A focal reduction for a particular time sample was attributed to the heterogeneity of the tumor sample. Non-refrigerated samples are affected more by prolonged cold ischemic time than refrigerated samples. Cold ischemic time period of as short as one-half hour may occasionally impact the immunohistochemical (IHC) staining for progesterone receptor. Significant reduction in IHC staining for hormone receptors, and HER2, however, generally does not result until 4 h for refrigerated samples and 2 h for non-refrigerated samples. The ASCO/CAP guideline of cold ischemic time period of <1 h is a prudent guideline to follow.
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- 2012
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5. Legionella micdadei prosthetic valve endocarditis complicated by brain abscess: case report and review of the literature.
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Fukuta Y, Yildiz-Aktas IZ, William Pasculle A, and Veldkamp PJ
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- Adult, Aged, Anti-Bacterial Agents administration & dosage, Bacteriological Techniques, Brain diagnostic imaging, Brain pathology, Brain Abscess microbiology, Brain Abscess pathology, Echocardiography, Endocarditis, Bacterial complications, Endocarditis, Bacterial microbiology, Endocarditis, Bacterial pathology, Endocardium diagnostic imaging, Endocardium pathology, Female, Humans, Legionella classification, Legionellosis complications, Legionellosis microbiology, Legionellosis pathology, Levofloxacin, Magnetic Resonance Imaging, Male, Middle Aged, Ofloxacin administration & dosage, Prosthesis-Related Infections complications, Prosthesis-Related Infections microbiology, Prosthesis-Related Infections pathology, Radiography, Brain Abscess diagnosis, Endocarditis, Bacterial diagnosis, Legionella isolation & purification, Legionellosis diagnosis, Prosthesis-Related Infections diagnosis
- Abstract
Legionella endocarditis is extremely uncommon, and embolic phenomena have never been reported. We report the first case of Legionella micdadei prosthetic valve endocarditis complicated by brain abscess. A 57-y-old immunocompromised woman with a history of mitral valve replacement developed confusion and left-sided weakness. Brain magnetic resonance imaging showed a 3-cm peripheral-enhancing mass. Transoesophageal echocardiography suggested a perivalvular abscess. Blood cultures and valve cultures were negative. She was diagnosed with 16S rRNA polymerase chain reaction and silver stain, and was discharged with levofloxacin after a redo mitral valve replacement. Twelve cases of Legionella endocarditis were reviewed. Only one case had a native valve, and her endocarditis occurred after pneumonia. All cases were cured. The duration of antibiotic therapy was variable. Legionella species should be considered in the differential diagnosis of culture-negative endocarditis in both immunocompetent and immunocompromised patients. Molecular techniques and silver impregnation stains are useful, especially when cultures using buffered charcoal-yeast extract agar are negative.
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- 2012
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6. Testicular touch preparation cytology in the evaluation of male infertility.
- Author
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Yildiz-Aktas IZ, Monaco SE, Khalbuss WE, Parwani AV, Jaffe TM, and Pantanowitz L
- Abstract
Background: Male infertility is traditionally evaluated by tissue core biopsies of the testes. Touch preparations (TP) of these biopsies have been infrequently used. The aim of this study is to report our experience with using testicular biopsy TP for the evaluation of male infertility., Materials and Methods: A retrospective search was performed for cases of testes biopsies with concurrent TP. These cases were evaluated for clinical information, specimen adequacy, and cytological-histological correlation., Results: A total of 39 cases were identified from men with a mean age of 34 years (range 23 to 50 years). TP slides were satisfactory for evaluation in 31 (89%) cases, and less than optimal in four due to low cellularity, obscuring blood or air drying artifact. Cytopathology showed concordance with the biopsy in almost all cases. In one discordant case where the biopsies showed no active spermatogenesis, a rare sperm were identified on the TP., Conclusions: TP of the testis is a helpful adjunct to biopsy because of its ability to clearly evaluate all stages of spermatogenesis. These data demonstrate that TP cytopathology of the testes in our experience has an excellent correlation with both normal testicular biopsies and those showing pathological spermatogenesis, and in rare cases may provide added benefit in evaluating the presence of spermatogenesis for male infertility. Albeit uncommon, cytopathologists may be required to identify and evaluate spermatogenic elements in cytology specimens being submitted from men with infertility.
- Published
- 2011
- Full Text
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