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https://www.readbyqxmd.com/read/27911001/diagnostic-accuracy-of-thyroid-imaging-reporting-and-data-system-in-the-prediction-of-malignancy-in-nodules-with-atypia-and-follicular-lesion-of-undetermined-significance-cytologies
#1
Husniye Baser, Bekir Cakir, Oya Topaloglu, Afra Alkan, Sefika Burcak Polat, Hayriye Tatli Dogan, Mustafa Omer Yazicioğlu, Cevdet Aydin, Reyhan Ersoy
OBJECTIVE: Thyroid Imaging Reporting and Data System (TIRADS) is a simple and reliable reporting system for the prediction of malignancy. We aimed to determine the role of TIRADS in the prediction of malignancy in subcategories of Bethesda Category III, atypia of undetermined significance (AUS) and follicular lesion of undetermined significance (FLUS). DESIGN & PATIENTS: A total of 461 nodules with AUS cytology in 450 patients and 179 nodules with FLUS cytology in 168 patients were included...
November 7, 2016: Clinical Endocrinology
https://www.readbyqxmd.com/read/27902476/stromal-p16-expression-is-significantly-increased-in-endometrial-carcinoma
#2
Gun Yoon, Chang Won Koh, Nara Yoon, Ji-Ye Kim, Hyun-Soo Kim
p16 is a negative regulator of cell proliferation and is considered a tumor suppressor protein. Alterations in p16 protein expression are associated with tumor development and progression. However, the p16 expression status in the peritumoral stroma has not been investigated in the endometrium. Therefore, we evaluated stromal p16 expression in different types of endometrial lesions using immunohistochemistry. Differences in the p16 expression status according to the degree of malignancy and histological type were analyzed...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27896853/melanomas-versus-nevi-in-high-risk-patients-under-long-term-monitoring-with-digital-dermatoscopy-do-melanomas-and-nevi-already-differ-at-baseline
#3
P Tschandl, L Hofmann, C Fink, H Kittler, H A Haenssle
BACKGROUND: What lesions to select for a most efficient dermatoscopic monitoring of patients with multiple nevi remains an unresolved issue. OBJECTIVE: To compare the grade of atypia of melanomas and nevi of the same patient at baseline. METHODS: Prospective observational study using 236 dermatoscopic baseline images (59 quartets from 59 patients, each including 1 melanoma detected during follow-up and 3 nevi). Dermatologists (n=26) were asked to assess the "grade of dermatoscopic atypia" on a numerical scale and to identify the melanomas...
November 29, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/27893201/effects-of-tobacco-smoking-on-the-dorsum-of-the-tongue-and-buccal-epithelium
#4
Abdullah Faraj Al Shammari, Ibrahim Khalil AL Ibrahim, Amjad Ibrahim Alaauldeen, Randa Fouad Merza, Hussain Gadelkarim Ahmed
Objective: The aim of this study was to assess the effects of tobacco smoking on the dorsum of the tongue and buccal epithelium. Methodology: This case control cross-sectional study was conducted with 174 smoking and non-smoking volunteers living in the city of Hail, Northern KSA. Cytological Materials were obtained from buccal mucosa and dorsum of the tongue, and assessed using cytopathological methods. Results: In buccal smears, cytological atypia was observed in 17 out of 101 (16.8%) smoker cases but only 3/73(4...
January 10, 2016: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/27893191/young-investigator-challenge-molecular-testing-in-noninvasive-follicular-thyroid-neoplasm-with-papillary-like-nuclear-features
#5
Xiaoyin Sara Jiang, Grant P Harrison, Michael B Datto
BACKGROUND: Molecular testing provides an important ancillary study for thyroid nodules with indeterminate cytology. The nomenclature shift to "noninvasive follicular thyroid neoplasm with papillary-like nuclear features" (NIFTP) will impact the performance of molecular tests. For the current study, the authors reviewed the performance of the Afirma gene-expression classifier (GEC) and the University of Pittsburgh Medical Center (UPMC) targeted mutation panel tests in thyroid nodules that were subsequently diagnosed as NIFTP on surgical resection...
November 28, 2016: Cancer
https://www.readbyqxmd.com/read/27891343/expression-of-alpha-methylacyl-coa-racemase-amacr-in-gastric-adenocarcinoma-and-its-correlation-with-helicobacter-pylori-infection
#6
Yamini Jindal, Anshul Singh, Ravikant Kumar, Kachnar Varma, Vatsala Misra, Sri Prakash Misra, Manisha Dwivedi
INTRODUCTION: Gastric cancer develops in a multistep progression and is determined by genetic and environmental factors. Over-expression of Alpha Methylacyl CoA Racemase (AMACR) is useful in diagnosis of prostate cancer. There is plenty of genetic alteration that occurs in gastric adenocarcinoma. The present study was planned to determine if AMACR can be used as a diagnostic marker in gastric adenocarcinoma similar to prostate cancer. AIM: To study the expression of AMACR in gastric adenocarcinoma and correlate its expression with density of Helicobacter pylori...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27890406/cutaneous-histiocytic-sarcoma-with-regional-lymph-node-metastasis-in-a-netherland-dwarf-rabbit-oryctolagus-cuniculus
#7
M R Karim, T Izawa, M Pervin, H Sasai, M Kuwamura, J Yamate
A 10-year-old male Netherland dwarf rabbit (Oryctolagus cuniculus) was presented with a red nodular mass (1 cm in diameter) with ulceration and hair loss in the skin of the left upper lip. Cytological examination revealed atypical round cells. The mass was excised surgically. Histologically, the mass was composed of large round to polyhedral neoplastic cells with marked cytological atypia. The neoplastic cells were often binucleated or multinucleated. Immunohistochemically, the neoplastic cells were intensely positive for Iba1 and vimentin, but fewer neoplastic cells expressed E-cadherin...
November 24, 2016: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/27889754/serous-cystadenoma-of-the-pancreas-potentials-and-pitfalls-of-a-preoperative-cytopathologic-diagnosis
#8
Mohammed T Lilo, Christopher J VandenBussche, Derek B Allison, Anne Marie Lennon, Bouchra K Younes, Ralph H Hruban, Christopher L Wolfgang, Syed Z Ali
OBJECTIVES: Pancreatic serous cystadenomas (SCAs) are benign tumors. Technological advances in imaging have led to increased recognition of asymptomatic pancreatic cysts, consequently increasing the demand for cytomorphologic evaluations of cyst fluid. STUDY DESIGN: A retrospective search through the pathology archives over an 11-year period was performed to identify SCAs from pancreatectomy specimens with a presurgical pancreatic EUS-guided fine-needle aspiration (FNA)...
November 26, 2016: Acta Cytologica
https://www.readbyqxmd.com/read/27889665/a-three-dimensional-spheroidal-cancer-model-based-on-peg-fibrinogen-hydrogel-microspheres
#9
Shantanu Pradhan, Jacob M Clary, Dror Seliktar, Elizabeth A Lipke
Three-dimensional (3D) in vitro cancer models offer an attractive approach towards the investigation of tumorigenic phenomena and other cancer studies by providing dimensional context and higher degree of physiological relevance than that offered by conventional two-dimensional (2D) models. The multicellular tumor spheroid model, formed by cell aggregation, is considered to be the "gold standard" for 3D cancer models, due to its ease and simplicity of use. Although better than 2D models, tumor spheroids are unable to replicate key features of the native tumor microenvironment, particularly due to a lack of surrounding extracellular matrix components and heterogeneity in shape, size and aggregate forming tendencies...
November 1, 2016: Biomaterials
https://www.readbyqxmd.com/read/27888661/use-of-vimentin-immunocytochemical-staining-for-evaluation-of-atypical-cells-in-voided-urine-samples
#10
Margareta Strojan Fležar, Irena Srebotnik-Kirbiš, Helena Gutnik
BACKGROUND: Cytomorphology of exfoliated atypical reactive/repair renal tubular cells (RRTC) can resemble atypical urothelial cells thus suggesting a differential diagnostic question of urothelial neoplasia in urinary cytology. Vimentin expression has been shown in RRTC and used for differentiation from atypical urothelial cells. METHODS: The institutional computer database was searched for urinary cytology cases with vimentin immunocytochemical staining (2008-2012)...
November 26, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27887913/prospective-assessment-of-cosmesis-before-and-after-genital-surgery
#11
N J Nokoff, B Palmer, A J Mullins, C E Aston, P Austin, L Baskin, K Bernabé, Y-M Chan, E Y Cheng, D A Diamond, A Fried, D Frimberger, D Galan, L Gonzalez, S Greenfield, T Kolon, B Kropp, Y Lakshmanan, S Meyer, T Meyer, L L Mullins, A Paradis, D Poppas, P Reddy, M Schulte, K J Scott Reyes, J M Swartz, C Wolfe-Christensen, E Yerkes, A B Wisniewski
INTRODUCTION: Little data exist about the surgical interventions taking place for children with disorders of sex development (DSD). Most studies that have evaluated cosmetic outcomes after genitoplasty have included retrospective ratings by a physician at a single center. OBJECTIVE: The present study aimed to: 1) describe frequency of sex assignment, and types of surgery performed in a cohort of patients with moderate-to-severe genital ambiguity; and 2) prospectively determine cosmesis ratings by parents and surgeons before and after genital surgery...
October 8, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/27886416/a-case-of-solitary-well-differentiated-papillary-mesothelioma-with-invasive-foci-in-the-pleura
#12
Shigeki Shimizu, Hyung-Eun Yoon, Norimasa Ito, Taisuke Tsuji, Yasunobu Funakoshi, Tomoki Utsumi, Masahiro Sakaguchi, Toru Tsujimura, Takahiko Kasai, Kenzo Hiroshima, Akihide Matsumura
Well-differentiated papillary mesothelioma (WDPM) is a rare, distinct tumor consisting of mesothelial cells with a papillary architecture, bland cytological features, and a tendency toward superficial spread without invasion. Rare cases with superficial invasion are termed WDPM with invasive foci. We report a case of solitary WDPM with invasive foci in the pleura. A 61-year-old woman presented with a lung adenocarcinoma. A small papillary lesion measuring 29 × 10 × 8 mm was incidentally found in the parietal pleura during a lobectomy for the lung adenocarcinoma...
November 25, 2016: Pathology International
https://www.readbyqxmd.com/read/27879515/atypical-spindle-cell-lipomatous-tumor-clinicopathologic-characterization-of-232-cases-demonstrating-a-morphologic-spectrum
#13
Adrian Mariño-Enriquez, Alessandra F Nascimento, Azra H Ligon, Cherwei Liang, Christopher D M Fletcher
The classification of atypical adipocytic neoplasms with spindle cell features remains challenging. To better define this category of low-grade lipomatous neoplasms, we present herein the clinical, histologic, and immunohistochemical characteristics of a large series of 232 atypical spindle cell lipomatous tumors. The lesions affected 140 males and 92 females, at an average age of 54 years (range, 6 to 87 y), clinically presenting as a persistent or enlarging mass with a median size of 5 cm. The anatomic distribution of the tumors was wide, predominating in the limbs and limb girdles (147 cases, 63%), mainly in the hands and feet (17% and 11%, respectively), with equal distribution between subcutaneous and deeper locations...
November 22, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27878253/development-of-a-therapeutic-model-of-precancerous-liver-using-crocin-coated-magnetite-nanoparticles
#14
Rkia El-Kharrag, Amr Amin, Soleiman Hisaindee, Yaser Greish, Sherif M Karam
Despite considerable advances in understanding hepatocellular carcinoma, it is one of the common and deadliest cancers worldwide. Hence, increasing efforts are needed for early diagnosis and effective treatments. Saffron has been recently found to inhibit growth of liver cancer in rats. The aim of this study was to develop an effective method for treatment of liver cancer using magnetite nanoparticles (MNPs) coated with crocin, the main active component of saffron. MNPs were prepared and initially coated with dextran and a cross-linker to enhance conjugation of crocin using a modified coprecipitation method...
November 15, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27874969/idiopathic-myelofibrosis-accompanied-by-peritoneal-extramedullary-hematopoiesis-presenting-as-refractory-ascites-in-a-dog
#15
Yolandi Rautenbach, Amelia Goddard, Sarah J Clift
A 2.5-year-old spayed female American Pit Bull Terrier dog presented with a primary complaint of chronic refractory ascites. The dog's CBC displayed a moderate to severe macrocytic, hypochromic, nonregenerative anemia, and a moderate leukopenia as result of a moderate neutropenia and monocytopenia. Microscopic examination of the blood smear showed marked anisocytosis, mild polychromasia, mild acanthocytosis and ovalocytosis, moderate schistocytosis and poikilocytosis, and 4 metarubricytes/100 WBC. Abdominal ultrasonography revealed a homogenous, mild to moderately hyperechoic appearing liver as well as marked amounts of speckled anechoic to slightly hypoechoic peritoneal fluid...
November 22, 2016: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/27873391/immunocytochemical-staining-for-p53-and-ki-67-helps-to-characterise-urothelial-cells-in-urine-cytology
#16
M Courtade-Saïdi, J Aziza, D d'Aure, E Bérard, S Evrard, C Basset, L Lacoste-Collin
OBJECTIVE: The presence of atypical cells in urine cytology is unsatisfactory for both cytologists and clinicians. The objective of this study was to test whether p53 and Ki-67 immunostaining could improve urothelial carcinoma (UC) detection on urinary cytology. METHODS: A total of 196 urine samples were analysed, 142 from the bladder, 41 from the upper tract and 13 from ileal bladder replacement. Cytology results were expressed as normal (N) (n = 81), atypia cannot exclude low-grade UC (ALG) (n = 25), suspicious for high-grade UC (SHG) (n = 39) and high-grade UC (HG) (n = 51)...
December 2016: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/27872782/angiosarcoma-arising-in-ovarian-mucinous-tumor-a-challenge-in-intraoperative-frozen-section-diagnosis
#17
Surapan Khunamornpong, Jongkolnee Settakorn, Kornkanok Sukpan, Tip Pongsuvareeyakul, Sumalee Siriaunkgul
Angiosarcoma of the ovary is rare but represents an aggressive type of malignant ovarian neoplasms. The purpose of this report is to describe the features of angiosarcoma arising in mucinous tumor that was misinterpreted as a benign vascular proliferation during the intraoperative consultation. A 45-year-old woman presented with an abdominal mass for 1 month. Exploratory laparotomy was performed. A 35 cm right ovarian mass submitted for intraoperative consultation was a multicystic mucinous tumor with an 8 cm area of hemorrhagic lesion between cystic locules...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27870726/melanocytic-nevi-of-special-sites
#18
Christine S Ahn, Analia Guerra, Omar P Sangüeza
Melanocytic nevi located on specific regions of the body can demonstrate unusual histopathological features such as asymmetry, irregular nesting patterns, pagetoid spread, cytologic atypia, and rarely, mitotic activity. However, despite these features that may raise concern for malignant melanoma, these lesions follow a benign clinical course and do not require intervention. Also known as nevi of special sites or nevi with site-related atypia, these melanocytic nevi were initially described on acral sites and genitalia...
December 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27869446/-oncopathological-aspects-of-brca1-and-brca2-genes-inactivation-in-tumors-of-ovary-fallopian-tube-and-pelvic-peritoneum
#19
Petr Škapa, Pavel Dundr
Ovarian carcinoma represents a heterogeneous group of malignant epithelial tumors which could be divided into two fundamental groups: Type I (endometrioid carcinoma, clear cell carcinoma, low grade serous carcinoma, mucinous carcinoma and more rare seromucinous carcinoma and malignant Brenner tumor) and type II (high grade serous carcinoma - HGSC). HGSC is the most frequent ovarian carcinoma which may be etiologically linked to inactivation of tumor suppressor genes BRCA1/2 and TP53 and differs from type I carcinomas by higher aggressiveness, tendency to peritoneal spread and worse prognosis...
2016: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27866089/absence-of-epithelial-atypia-in-b3-lesions-of-the-breast-is-associated-with-decreased-risk-for-malignancy
#20
Sebastian Mayer, Gian Kayser, Gerta Rücker, Diana Bögner, Marc Hirschfeld, Christiane Hug, Elmar Stickeler, Gerald Gitsch, Thalia Erbes
INTRODUCTION: Lesions of uncertain malignant potential (B3) represent a heterogeneous group with an overall risk for malignancy of 9.85-35.1% after total resection. Positive predictive values (PPV) for malignancy vary depending on B3 subtype. The aim of this study was to evaluate the PPV for malignancy in B3 lesions and to determine the clinical significance of atypia-dependent sub-classification (a = without epithelial atypia; b = with epithelial atypia) of B3 into B3a and B3b and papillary lesions (PL) in PLa and PLb...
November 17, 2016: Breast: Official Journal of the European Society of Mastology
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