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https://www.readbyqxmd.com/read/28738381/cytological-criteria-to-distinguish-phyllodes-tumour-of-the-breast-from-fibroadenoma
#1
Robert M Maritz, Pamela M Michelow
OBJECTIVE: To determine whether there are significant differences between fibroadenomas and phyllodes tumours with regard to selected cytomorphological features. STUDY DESIGN: A 10-year retrospective review was performed of patients who underwent excision of a fibroadenoma or phyllodes tumour and in whom a preoperative fine-needle aspiration was performed. The following cytological criteria were assessed: number of stromal and epithelial fragments, stromal-to-epithelial ratio, stromal cellularity, stromal borders, stromal atypia, and proportion of background wavy spindled cells...
July 25, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28718513/the-fine-needle-aspiration-of-translocation-sarcomas
#2
C J VandenBussche, C L Adams, O G McDonald, S A Whitworth, S Z Ali
INTRODUCTION: Soft tissue sarcomas comprise a heterogeneous group of clinically aggressive cancers that are often hard to classify on limited cytological samples. "Translocation sarcomas" (TS) are a diverse subset of such cancers, different from pleomorphic sarcomas, and characterised by unique single chromosomal translocations in each sarcoma subtype. Interestingly, despite their high-grade biological behaviour, TS have deceptively monotonous and bland cytomorphology, therefore creating diagnostic issues on limited samples...
July 17, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/28716439/renal-cell-carcinoma-unclassified-with-medullary-phenotype-poorly-differentiated-adenocarcinomas-overlapping-with-renal-medullary-carcinoma
#3
Deepika Sirohi, Steven C Smith, Chisato Ohe, Piergiuseppe Colombo, Mukul Divatia, Ema Dragoescu, Priya Rao, Michelle S Hirsch, Ying-Bei Chen, Rohit Mehra, Mahul B Amin
Renal medullary carcinoma (RMC) is a highly aggressive renal cell carcinoma, arising in the collecting system, and requiring careful correlation with status of sickle cell trait. A panel of international experts has recently proposed provisional diagnostic terminology, renal cell carcinoma, unclassified, with medullary phenotype (RCCU-MP), based on encountering an extraordinarily rare tumor with RMC morphology and immunophenotype in an individual proven not to have a hemoglobinopathy. Herein, we extend this observation to a cohort of five such tumors, morphologically similar to RMC, lacking SMARCB1 expression by immunohistochemistry, but each without evidence of a hemoglobinopathy...
July 14, 2017: Human Pathology
https://www.readbyqxmd.com/read/28715445/cytological-diagnostic-features-of-late-breast-implant-seromas-from-reactive-to-anaplastic-large-cell-lymphoma
#4
Arianna Di Napoli, Giuseppina Pepe, Enrico Giarnieri, Claudia Cippitelli, Adriana Bonifacino, Mauro Mattei, Maurizio Martelli, Carlo Falasca, Maria Christina Cox, Iolanda Santino, Maria Rosaria Giovagnoli
Late breast implant seroma may be the presentation of a breast implant-associated anaplastic large cell lymphoma (BI-ALCL), which claims for a prompt recognition. However, BI-ALCL diagnosis on fine-needle aspiration (FNA) might be challenging for pathologists lacking experience with peri-implant breast effusions. Sixty-seven late breast implant seromas collected by FNA from 50 patients were evaluated by Papanicolaou smear stain and immunocytochemistry on cell blocks. A diagnostic algorithm based on the cellular composition, cell morphology and percentage of CD30+ cells was developed...
2017: PloS One
https://www.readbyqxmd.com/read/28709933/identification-of-novel-biomarker-and-therapeutic-target-candidates-for-diagnosis-and-treatment-of-follicular-carcinoma
#5
Xianyin Lai, Christopher B Umbricht, Kurt Fisher, Justin Bishop, Qiuying Shi, Shaoxiong Chen
Distinguishing follicular carcinoma from follicular adenoma, based on cytomorphological features, has always been challenging to cytopathologists. Identification of biomarkers for improving diagnostic accuracy is important for clinical management. Meanwhile, it is critical to identify therapeutic target candidates for treatment of follicular carcinoma. Currently, no reliable diagnostic protein biomarkers and therapeutic targets are available. To explore novel protein biomarker and therapeutic target candidates, a liquid chromatography-tandem mass spectrometry approach was applied to analyze control, follicular adenoma, and follicular carcinoma using formalin-fixed, paraffin-embedded tissue samples...
July 11, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28701836/fine-needle-aspiration-cytology-diagnosis-of-metastatic-malignant-diffuse-type-tenosynovial-giant-cell-tumor
#6
Prashant Ramteke, Venkat K Iyer, Karan Madan, Shivanand Gamangatti, Asit R Mridha
Tenosynovial giant cell tumors (TGCTs) arise from the synovium of joint, bursa, and tendon sheath, and are classified into localized and diffuse types. Diffused type often affects the large joint, and has more recurrence, metastasis, and malignant transformation potential compared to the localized type. Malignant diffused TGCT (D-TGCT) usually occurs as a large tumor (>5 cm), in older patients, and its histopathologic features include necrosis, cellular anaplasia, prominent nucleoli, high nuclear cytoplasmic ratio, brisk mitosis, discohesion of tumor cells, paucity of giant cells, and a diffuse growth pattern...
July 2017: Journal of Cytology
https://www.readbyqxmd.com/read/28701831/intestinal-gist-masquerading-as-an-ovarian-mass-diagnosed-on-fnac
#7
Surbhi Goyal, Vinod K Arora, Mohit K Joshi, Navjeevan Singh, Gita Radhakrishnan
The preoperative diagnosis of metastatic intestinal gastrointestinal stromal tumors (GIST) on cytology can be quite difficult at times. The present case characterizes the cytomorphological and immunocytochemical features of GIST, emphasizing the utility of fine-needle aspiration cytology (FNAC) in the evaluation of spindle cell tumors of gastrointestinal tract. An accurate and early diagnosis of GIST affects the treatment, primarily allowing the use of tyrosine kinase inhibitors in unresectable or metastatic cases...
July 2017: Journal of Cytology
https://www.readbyqxmd.com/read/28701826/cytomorphological-patterns-of-tubercular-lymphadenitis-and-its-comparison-with-ziehl-neelsen-staining-and-culture-in-eastern-up-gorakhpur-region-cytological-study-of-400-cases
#8
Shaila K Mitra, Rajiv K Misra, Priyanka Rai
BACKGROUND: Tuberculous lymphadenitis is most common cause of lymphadenopathy in developing countries. Although enormous literature is available on various aspects of the disease including cytological patterns and its incidence in others parts of India and in other countries, only limited literature is available regarding its incidence and morphological spectrum on cytology in eastern parts of Uttar Pradesh in Gorakhpur region. AIM: The present study was undertaken to estimate the incidence of tuberculous lymphadenitis in our settings along with its morphological spectrum on cytology as well as to determine the utility of culture of fine needle aspirates in addition to cytology and Ziehl-Neelsen (ZN) staining...
July 2017: Journal of Cytology
https://www.readbyqxmd.com/read/28696007/comparison-of-conventional-cytology-and-surepath-in-split-thyroid-fine-needle-aspiration-materials
#9
D Sahin, D Yilmazbayhan, P Firat, U P Hacisalihoglu, S H Kirimlioglu, E Celenk, R Arslan
OBJECTIVE: The aim of the present study was to compare the cytomorphological features and cytopathological diagnoses in thyroid aspiration materials prepared by SurePath® (SP) and conventional cytology (CC). MATERIALS AND METHODS: Fine needle aspiration (FNA) materials from 180 thyroid nodules were divided into two groups to prepare three conventional smears and one SP slide. Twenty-nine cytomorphological features of thyroid lesions were compared in the CC and SP slides...
July 11, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/28695686/imprint-cytology-of-clear-cell-sarcoma-like-tumor-of-the-gastrointestinal-tract-in-the-small-intestine-a-case-report
#10
Takashi Kato, Shin Ichihara, Hiroko Gotoda, Shunji Muraoka, Terufumi Kubo, Shintaro Sugita, Tadashi Hasegawa
Clear cell sarcoma-like tumor of the gastrointestinal tract (CCSLGT) is an extremely rare malignant neoplasm in the digestive tract. Its cytomorphologic features have never previously been reported. Here, we describe a case of CCSLGT, including its cytologic examination findings. A 47-year-old woman presented with a mass in the small intestine, which was resected and sent for imprint cytology. Imprint smears revealed tumor cells with light eosinophilic or clear cytoplasm in a necrotic background. Many of the tumor cells were arranged in a perivascular growth with a pseudopapillary formation, and there were some non-neoplastic osteoclast-like giant cells...
July 11, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28694837/metastatic-neoplasms-to-the-thyroid-diagnosed-by-fine-needle-aspiration-core-needle-biopsy-clinicopathologic-and-cytomorphologic-correlation
#11
Mobeen Rahman, Ashley Rae Okada, Kevin Guan, Pamela Tauchi-Nishi
BACKGROUND: Although thyroid fine-needle aspiration (FNA) and core needle biopsy (CNB) are commonly utilized modalities in the evaluation of thyroid nodules, metastatic tumors to the thyroid are only rarely encountered. We aspired to determine the incidence and primary origin of metastases to the thyroid at our institution and to examine their clinicopathologic and cytomorphologic features. MATERIALS AND METHODS: A search of our database was undertaken to review all thyroid FNA and/or CNB examined between January 2004 and December 2013...
2017: CytoJournal
https://www.readbyqxmd.com/read/28685876/eus-fna-of-the-merkel-cell-carcinoma-metastasis-to-the-pancreas-cytomorphology-and-immunocytochemistry-on-direct-cytological-smears
#12
T Stoos-Veic, M Tadic, G Aralica, V Milicic, C Tomasovic-Loncaric
OBJECTIVE: To report two cases of Merkel cell carcinoma (MCC) metastatic to the pancreas diagnosed with endoscopic ultrasound-guided-fine needle aspiration (EUS-FNA) and to add the case of concomitant chronic lymphocytic leukaemia/small lymphocytic lymphoma (CLL/SLL) and MCC to the literature. The aim is to alert the cytopathologists once more to the problems of differential diagnosis of pancreatic metastasis of MCC and to describe the possibilities of ancillary methods performed on direct cytological smears...
July 6, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/28680005/efficacy-of-endoscopic-ultrasound-guided-fine-needle-aspiration-for-schwannoma-six-cases-of-a-retrospective-study
#13
Mika Takasumi, Takuto Hikichi, Tadayuki Takagi, Rei Suzuki, Ko Watanabe, Jun Nakamura, Mitsuru Sugimoto, Hitomi Kikuchi, Naoki Konno, Yuichi Waragai, Hiroyuki Asama, Katsutoshi Obara, Hiromasa Ohira
BACKGROUND: Schwannomas are difficult to diagnose using imaging alone. Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is an effective and safe tissue sampling technique. Nevertheless, few reports have described EUS-FNA for schwannoma. OBJECTIVE: This study evaluates the efficacy of EUS-FNA for diagnosing schwannoma. METHODS: This retrospective study examined six consecutive schwannoma patients who were diagnosed as having schwannoma either from EUS-FNA results or from surgically resected specimens...
July 5, 2017: Fukushima Journal of Medical Science
https://www.readbyqxmd.com/read/28660709/patient-characteristics-prognostic-factors-and-outcome-of-dogs-with-high-grade-primary-mediastinal-lymphoma
#14
E L Moore, W Vernau, R B Rebhun, K A Skorupski, J H Burton
The goals of this retrospective study were to determine the patient characteristics of dogs with high-grade primary mediastinal lymphoma and to determine outcome and associated prognostic factors. A total of 42 dogs were identified, in which 36 received treatment and had follow-up information available. The most common clinical signs included lethargy, anorexia and polyuria/polydipsia. Hypercalcemia and pleural effusion were common findings at diagnosis. The phenotype was almost exclusively T-cell, most often in association with lymphoblastic cytomorphology as defined by the World Health Organization (WHO) lymphoma classification scheme...
June 28, 2017: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/28658785/cystic-sertoli-leydig-cell-tumour-in-a-postmenopausal-woman-with-absent-virilising-symptoms-a-diagnostic-challenge
#15
Vidya Monappa, Saritha M Reddy, Ranjini Kudva, Muralidhar V Pai
A 60-year-old postmenopausal woman, presented with a left ovarian cystic mass with mildly elevated CA125 levels. An intraoperative frozen section showed oedematous ovarian stroma with interspersed large aggregates of spindle shaped stromal cells. Subsequently, the excised specimen was reported as Sertoli-Leydig Cell Tumour (SLCT) of intermediate differentiation. The leydig cells were identified in the imprint smears, but were misinterpreted as luteinized cells. The lack of tubular differentiated cells in frozen section had contributed to the misdiagnosis...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28607928/extremely-low-frequency-electromagnetic-fields-affect-myogenic-processes-in-c2c12-myoblasts-role-of-gap-junction-mediated-intercellular-communication
#16
Caterina Morabito, Nathalie Steimberg, Francesca Rovetta, Jennifer Boniotti, Simone Guarnieri, Giovanna Mazzoleni, Maria A Mariggiò
Extremely low-frequency electromagnetic fields (ELF-EMFs) can interact with biological systems. Although they are successfully used as therapeutic agents in physiatrics and rehabilitative practice, they might represent environmental pollutants and pose a risk to human health. Due to the lack of evidence of their mechanism of action, the effects of ELF-EMFs on differentiation processes in skeletal muscle were investigated. C2C12 myoblasts were exposed to ELF-EMFs generated by a solenoid. The effects of ELF-EMFs on cell viability and on growth and differentiation rates were studied using colorimetric and vital dye assays, cytomorphology, and molecular analysis of MyoD and myogenin expression, respectively...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28603936/laryngeal-chondrosarcoma-mimicking-medullary-thyroid-carcinoma-on-fine-needle-aspiration-cytology-a-case-report-of-a-diagnostic-pitfall
#17
Shifteh Vahidi, Khalid Amin, Jimmie Stewart
Chondrosarcoma (CS) of larynx is a rare laryngeal tumor accounting about 1% of laryngeal malignancies. When CS arises from thyroid cartilage, it may clinically present as a thyroid nodule. Here we report a rare case of CS of thyroid cartilage misinterpreted as medullary thyroid carcinoma. The main aim of this case report is to emphasize the important role of accurate clinical history, appropriate physical examination, and proper localization of the tumor and clear definitive imaging in conjunction with interpretation of cytologic smears...
June 11, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28603895/metastatic-neoplasms-to-the-pancreas-diagnosed-by-fine-needle-aspiration-biopsy-cytology-a-15-year-retrospective-analysis
#18
Sasha L T Raymond, Deanne Yugawa, Karen H F Chang, Brandy Ena, Pamela S Tauchi-Nishi
BACKGROUND: Metastatic tumors to the pancreas are rarely encountered and diagnostically challenging. We aspired to determine the incidence and origin of all metastases to the pancreas at our institution, and to examine their clinicopathologic and cytomorphologic features. We also sought to ascertain the effect of endoscopic ultrasound (EUS) guidance implementation. METHODS: A search of our database was undertaken to review all pancreatic FNA and/or CNB examined from January 2000 through December 2014...
June 11, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28599442/promoter-methylation-status-of-the-tumor-suppressor-genes-p16-and-cadherin-1-in-cervical-intraepithelial-neoplasia
#19
Ruei-Nian Li, Chien-Yu Li, Chien-Hung Lee, Chiung-Yu Peng, Ming-Tsang Wu
Cervical cancer is the second most common female cancer worldwide. DNA methylation is one of a number of epigenetic regulation mechanisms leading to gene silencing in neoplastic cells. Aberrant methylation results in the silencing of tumor suppressor gene expression, and has been detected in a high percentage of human cancers. In the present study, the methylation status of three tumor suppressor genes, retinoic acid receptor β (RARβ), p16 and cadherin 1 (CDH1), and the inflammatory-associated cyclooxygenase-2 (COX-2) gene, was examined at distinct stages of cervical intraepithelial neoplasia (CIN)...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28597510/urinary-tract-washing-specimens-containing-atypical-urothelial-tissue-fragments-are-significantly-associated-with-urothelial-neoplasia
#20
M Lisa Zhang, Amy G Zhou, Dorothy L Rosenthal, Christopher J VandenBussche
BACKGROUND: We previously found that the presence of atypical urothelial tissue fragments (AUTF) was associated with an increased risk of high-grade urothelial carcinoma (HGUC) but not low-grade urothelial neoplasia (LGUN) in voided urine (VU) specimens. However, we subsequently found that patients with LGUN were more likely to have cytologic atypia in urinary washing (UW) specimens, suggesting that cytologic atypia found in UW specimens might be associated with both LGUN and HGUC. In this study, we retrospectively examined UW specimens containing AUTF to determine whether they were associated with HGUC, LGUN, or both HGUC and LGUN...
June 9, 2017: Diagnostic Cytopathology
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