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Search Results: 1 - 10 of 2663 matches for " fine needle aspiration cytology "
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Liquid Based Cytology of Cell Remnants in Needles Used for Breast Fine Needle Aspiration  [PDF]
Avwioro Godwin, Iyiola Sina, Bankole Julius, Osiagwu Daniel, Muhammad Ahmad
Journal of Cancer Therapy (JCT) , 2010, DOI: 10.4236/jct.2010.14029
Abstract: This study examined cells contained in needles used for the collection of breast fine needle aspirates for the detection of malignant cells trapped in the needles. Remnants of cells contained in 50 needles used for the collection of scanty breast fine needle aspirates were examined by the liquid based cytology technique and compared with the conventional cytological technique of specimens in the corresponding syringes. The breast specimens were collected with clean sterile needles attached to the syringes. Smears were made and stained by the conventional method. The needles were removed from the syringes and a fixative was withdrawn into the syringes and the syringes were recapped with the needles. The fixative containing the specimen was then completely discharged into a centrifuge tube through the needles and treated by the liquid based cytology technique. The study revealed that cells were found trapped in all the needles used for the collection of breast FNA. 6% of them were positive for malignancy, similar to results obtained in the conventional method. Needles used for the collection of breast FNA should be examined before malignancy is completely ruled out particularly in extremely scanty specimens with a clinical suspicion of malignancy.
Fine needle aspiration cytology findings in cases diagnosed as oropharyngeal tularemia lymphadenitis (Erratum was published in Vol 24 Number 1, 2008)
Türk Patoloji Dergisi , 2007,
Abstract: Francisella tularensis is a gram-negative coccobacilus that causes zoonotic disease tularemia. Histopathological examination of lymph node biopsy in tularemia reveals suppurative granulomatous inflammation potentially associated caseous necrosis. Diagnosis is mainly made on the evidence of elevated agglutinating antibodies against F. Tularensis. In this study we aimed to evaluate the cytological features of ulceroglandular tularemia cases and to demonstrate the role of fine needle aspiration cytology in the diagnosis of tularemia.Fine needle aspiration cytology findings of six cervical lymphadenopaties that had established diagnoses of tularemia both clinically and serologically, were evaluated and the cytomorphological features were described.All of the cases revealed suppurative inflammation and some caseous necrosis and in four cases epithelioid histiocytes and multinuclear giant cells were observed additionally.The differential diagnosis of tularemia principally from tuberculosis and other types of bacterial lymphadenitis was made and the place of fine needle aspiration cytology among other diagnostic laboratory tests for tularemia was evaluated.
Cytology experience of Zonguldak Karaelmas University Medical Faculty Hospital between 2003-2005 years
?ükrü O?uz ?ZDAMAR,Sibel BEKTA?,Figen BARUT,Burak BAHADIR
Türk Patoloji Dergisi , 2006,
Abstract: Cytopathology which is more appreciated in recent years is one of the valuable diagnostic methods. The aim of this study is to evaluate and stratify cytology specimens according to routes of retrieval, organ systems and general cytomorphologic diagnosis.This study was carried out at Department of Pathology, Zonguldak Karaelmas University, Faculty of Medicine, from January 2003 to December 2005 retrospectively, by evaluating 9043 cytology specimens.A total number of 9043 cytology specimen composed of exfoliative cytology (89.9%) and fine needle aspiration (10.1%) specimens. Eighty-four percent of exfoliative cytology material was from Gynecology and Obstetrics Department, whereas 63 percent of fine needle aspiration material was from Internal Medicine Department. The majority of fine-needle aspiration specimens were obtained from thyroid (63%), whereas the majority of exfoliative specimens came from cervico-vaginal smears (82.5%). The fine needle aspiration specimens were evaluated as malignant, suspicious of malignancy, benign and indeterminate, in 1.6%, 1.9%, 65.8% and 30.7% of the samples respectively, whereas the exfoliative cytology specimens were reported as malignant, suspicious of malignancy, benign and indeterminate in 0.7%, 0.8%, 92.1%, and 6.4% of the samples respectively.Cytology specimens are mainly composed of exfoliative cytology specimens which are mostly cervico-vaginal smears. Thyroid is the most common sampled organ by fine needle aspiration. The high rate of inadequate diagnosis with this method can be associated with probably inadequate sampling.
Diagnostic dilemma: Diagnostic algorithm in fine needle aspiration cytology of mediastinal tumors
Dey Pranab
Indian Journal of Pathology and Microbiology , 2010,
Abstract: The mediastinum harbors a mixed bag of tumors, which may create significant diagnostic dilemmas. These tumors have widely variable therapeutic and prognostic implications. Correct pre-operative cytological diagnosis may obviate the need of surgical excision of many of these lesions. A stepwise algorithmic approach such as clinical history, radiological localization, salient cytomorphology and ancillary test helps in correct diagnosis of these tumors. This paper discusses the stepwise diagnostic algorithm for fine needle aspiration cytology diagnosis of mediastinal tumors.
Adenoma de paratireóide diagnosticado por pun??o aspirativa por agulha fina: relato de caso
Medeiros, Marciênio Oliveira de;Rosas, Rosalina Jenner;Oliveira, Vladimir Gomes de;Nóbrega Neto, Sebasti?o Horácio da;Souza, Lincoln Santos;Torres, Maria Roseneide dos Santos;
Jornal Brasileiro de Patologia e Medicina Laboratorial , 2006, DOI: 10.1590/S1676-24442006000300011
Abstract: the authors report a patient?s case with primary hyperparathyroidism caused by parathyroid adenoma that was diagnosed by fine needle aspiration cytology (fnac) in the preoperative. the increased parathyroid was visualized by the ultrasonography and submitted to fnac that was compatible with parathyroid adenoma. the surgical removal of adenoma was accomplished and the histopathologic was concordant with the cytology. this report detaches the importance of the location and preoperative cytological diagnosis of the parathyroid lesions in providing a less aggressive surgical approach.
Utilidad de la citología en el diagnóstico y manejo de tumores renales y perirrenales del adulto
Jiménez Heffernan,J.A.; González-Peramato,P.; Vicandi,B.; López Ferrer,P.; Serrano,A.; Pérez Campos,A.; Viguer,J.M.;
Actas Urológicas Espa?olas , 2007, DOI: 10.4321/S0210-48062007000900004
Abstract: introduction: the use more and more extended of tumorectomy, partial nephrectomy and nonsurgical treatments of renal tumors has supposed a renewed interest in the diagnosis use of cytology. whether during preoperative period, through the puncture aspiration with fine needle (paaf), or during the intraoperative analysis, the cytology offers the possibility of a specific morphologic diagnosis. in this revision the information concerning the diagnostic value of the cytology in renal tumors is updated. material and methods: the references related to renal masses cytological descriptions has been reviewed. for this purpose we have searched both with computer in medline data base and also manually. in the same way we include authors experience as much in the paaf of these lesions as in the intraoperative use of the cytology. results: between neoplasias with more cytological typical presentation are the clear cell renal and papillary carcinomas. the chromophobe and oncocytoma can show similarities, although the accumulated experience in the last years reflects that its differentiation is possible in most of the cases. for the diagnosis of angiomyolipoma, urothelial carcinoma and kidney metastasis, the clinical and image information are of great interest for the pathologist. the integration of these data usually allows a specific diagnosis. conclusion: generally, cytology reflects with accuracy the histological characteristics of renal neoplasias, allowing in many cases a specific diagnosis. we consider much appropriated the use of cytology, due to the more and more frequent situation of "incidentaloma". the paaf minimum invasive nature and the possibility of performing a fast cytological analysis during intraoperative studies offer important information for the therapeutic management of these patients.
La punción aspiración con aguja fina (PAAF) en el diagnóstico de actinomicosis cervicofacial: Estudio de 15 casos
Custal Teixidor,Montserrat; Trull Gimbernat,Josep Ma; Garijo López,Gloria; Valldosera Rosello,Miquel;
Medicina Oral, Patología Oral y Cirugía Bucal (Ed. impresa) , 2004,
Abstract: objectives: actinomycosis is quite an infrequent bacterial infection nowadays. however it can be considered in cases with a persistent cervicofacial disease. although it is a bacterial infection, microbiologic cultures are frequently not diagnoses, therefore histopathologic studies and image studies are essential. our interest is to explain our experience with cervicofacial actinomycosis; the clinical behaviour, evolution and treatment, always assisted by their elected diagnostic technique: the fnac. study design: in the last 16 years, 15 patients have been diagnosed with cervicofacial actinomycosis by fnac, treated by maxillofacial, internal medicine and paediatrics units. clinical course, evolution, anatomical space situation, antibiotic treatment, and surgical treatment have been studied. results and conclusions: the fine-needle aspiration cytology (fnac) is an easy, safe and rapid method, with a high effect, that has made the final diagnosis in 15 cases in our hospital. all the patients have had a good clinical evolution, only in one case did we need a new treatment for recidive. in all the cases treatment has been definitive. our interest is to explain our experience in the treatment of cervicofacial actinomycosis, its clinical presentation and evolution, together with its elected method of diagnosis, fnac.
Diagnóstico de criptococose canina pela citologia aspirativa por agulha fina
Martins, Danieli Brolo;Barbosa, Anna Laetícia Trindade;Cavalheiro, Ayrton;Lopes, Sonia Terezinha dos Anjos;Santurio, Janio Morais;Schossler, Jo?o Eduardo;Mazzanti, Alexandre;
Ciência Rural , 2008, DOI: 10.1590/S0103-84782008000300039
Abstract: this paper aimed to described a 1.5 year-old labrador male, diagnosed with cryptococcosis using fine-needle aspiration cytology (fnac). the dog was showing signs of depression and hyporexia. peripheral lymph nodes and a mass situated between the submandibular lymph nodes were aspirated. the cytology showed yeast-like structures resembling cryptococcus sp. in all samples examined. these findings were confirmed by culture (c. neoformans, serotype d). the fnac technique allowed a quick, safe and easy diagnosis in this case.
Fine needle aspiration cytology of pilomatrixoma
Bansal Cherry,Handa Uma,Mohan Harsh
Journal of Cytology , 2011,
Abstract: Aim : To delineate and characterize the cytomorphologic features of pilomatrixoma (PMX) helpful in correct diagnosis of the lesion on fine needle aspiration cytology (FNAC). Materials and Methods : Archival records of clinical findings, FNAC and histopathological reports of PMX cases were analyzed. Aspirate findings in 14 cases of PMX were correlated with detailed clinical data and subsequent histopathology on excisional biopsy. Different morphological findings were graded semiquantitatively from 0 to 3+. Results : The series showed female preponderance, with head and neck being the commonest site. Majority patients had a single tumor with mean size of 1.6 cm. Out of 14 biopsy proven cases of PMX, cytology findings revealed PMX in 7 cases on the basis of ghost cells, groups of basaloid cells, squamous cells in combination with multinucleated giant cells and calcium deposits in a background of debris. The main reasons for erroneous diagnosis were predominance of one component over the others and non-representative aspirated material. Conclusions : The cytological features of PMX are characteristic and allow a conclusive diagnosis provided the smears are examined keenly bearing in mind the diagnostic traps that can mislead a cytopathologist.
Cytohistological study of eyelid lesions and pitfalls in fine needle aspiration cytology
Mondal Santosh,Dutta Tapan
Journal of Cytology , 2008,
Abstract: Aims : The purpose of the study was to evaluate different eyelid lesions appearing as a swelling or mass, using fine needle aspiration cytology (FNAC), to conduct a cytological diagnosis of these lesions with subsequent histopathological correlation, and to identify the problems faced during microscopical examination of the smears. Materials and Methods : Fine needle aspirates from 80 eyelid swellings and histopathological correlation in 62 cases were studied. Results: Forty eight cases of benign and 32 cases of malignant lesions were diagnosed by FNAC. The five leading benign lesions were chalazions (12 cases, 15%), epithelial cysts (eight cases, 10%), chronic nonspecific inflammation (six cases, 7.5%), seborrheic keratosis (five cases, 6.25%) and benign adnexal adenoma (four cases, 5%). The most common malignant lesion was basal cell carcinoma (12 cases, 15%) followed by sebaceous gland carcinoma (nine cases, 11.25%) and squamous cell carcinoma (eight cases, 10%). Conclusions: Histopathological correlation showed that the accuracy of fine needle aspiration cytology in making diagnosis was 83.87%. Incidence of basal cell carcinoma in the study was lower, compared to most western studies. Therefore, there may be a racial and geographical variation.
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