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1.
J Cancer ; 8(12): 2223-2230, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28819424

RESUMO

The presence of circulating tumor cells (CTC) or microemboli (CTM) in the peripheral blood can theoretically anticipate malignancy of solid lesions in a variety of organs. We aimed to preliminarily assess this capability in patients with pulmonary lesions of suspected malignant nature. We used a cell-size filtration method (ScreenCell) and cytomorphometric criteria to detect CTC/CTM in a 3 mL sample of peripheral blood that was taken just before diagnostic percutaneous CT-guided fine needle aspiration (FNA) or core biopsy of the suspicious lung lesion. At least one CTC/CTM was found in 47 of 67 (70%) patients with final diagnoses of lung malignancy and in none of 8 patients with benign pulmonary nodules. In particular they were detected in 38 (69%) of 55 primary lung cancers and in 9 (75%) of 12 lung metastases from extra-pulmonary cancers. Sensitivity of CTC/CTM presence for malignancy was 70.1% (95%CI: 56.9-83.1%), specificity 100%, positive predictive value 100% and negative predictive value 28.6% (95%CI: 11.9-45.3%). Remarkably, the presence of CTC/CTM anticipated the diagnosis of primary lung cancer in 3 of 5 patients with non-diagnostic or inconclusive results of FNA or core biopsy, whereas CTC/CTM were not observed in 1 patient with sarcoidosis and 1 with amarthocondroma. These results suggest that presently, due to the low sensitivity, the search of CTC/CTM cannot replace CT guided percutaneous FNA or core biopsy in the diagnostic work-up of patients with suspicious malignant lung lesions. However, the high specificity may as yet indicate a role in cases with non-diagnostic or inconclusive FNA or core biopsy results that warrants to be further investigated.

3.
G Ital Dermatol Venereol ; 151(6): 619-627, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26199089

RESUMO

BACKGROUND: The aim of this work was to evaluate the role of human papillomavirus (HPV) testing and anal cytology, considering a population of HIV-positive and negative men who have sex with men (MSM), at high risk of sexually transmitted diseases (STD), in order to ascertain which of the methods examined is the best screening strategy for the prevention of anal cancer. METHODS: In the period 06/2013-07/2014 at the "MTS Centre" of the University of Florence, 87 male patients, homo/bi-sexual, of which 46 HIV-negative and 41 HIV-positive, were recruited for anal Pap smear and HPV testing. All patients with an "abnormal" cytological result underwent anoscopy with possible biopsy. RESULTS: HPV testing was positive in 73 patients (83.6%). Cytology was negative in 50 patients (57.5%), inconclusive in 14 patients (16.1%), abnormal in 23 patients (26.4%): 14 ASC-US (19.2%), 4 ASC-H (5.5%), 5 L-SIL (6.8%), 0 H-SIL. Anoscopy with biopsy led to diagnosis of AIN I in 10 cases, of which 6 ASC-US+ and 4L-SIL+, AIN II in only 1 case, LS-IL+. CONCLUSIONS: Anal HPV testing, when used in primary screening, lead to a high number of "false positives", given the too high prevalence of HPV infection in MSM, the highest risk population targeted for screening. So we propose a screening program with anal cytology which has a high sensitivity for detection of AIN while is a poor predictor of the severity of these lesions; therefore, all patients with abnormal anal Pap smear should undergo anoscopy with biopsy.


Assuntos
Neoplasias do Ânus/prevenção & controle , Programas de Rastreamento/métodos , Teste de Papanicolaou/métodos , Infecções por Papillomavirus/diagnóstico , Adolescente , Adulto , Idoso , Neoplasias do Ânus/diagnóstico , Neoplasias do Ânus/virologia , Biópsia , Reações Falso-Positivas , Soronegatividade para HIV , Soropositividade para HIV/epidemiologia , Homossexualidade Masculina , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Infecções por Papillomavirus/complicações , Adulto Jovem
4.
J Cancer Res Clin Oncol ; 142(1): 195-200, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26210156

RESUMO

PURPOSE: Timing and magnitude of blood release of circulating tumour cells (CTC) and circulating tumour microemboli (CTM) from primary solid cancers are uncertain. We investigated prevalence and number of CTC and CTM at diagnosis of advanced non-small cell lung cancer (NSCLC). METHODS: Twenty-eight consecutive patients with suspected stage III-IV lung cancer gave consent to provide 15 mL of peripheral blood soon before diagnostic CT-guided fine-needle aspiration biopsy (FNAB). CTC and CTM (clusters of ≥3 CTC) were isolated by cell size filtration (ScreenCell), identified and counted by cytopathologists using morphometric criteria and (in 6 cases) immunostained for vimentin. RESULTS: FNAB demonstrated NSCLC in 26 cases. At least one CTC/3 mL blood (mean 6.8 ± 3.7) was detected in 17 (65 %) and one CTM (mean 4.5 ± 3.3) in 15 (58 %) of 26 NSCLC cases. No correlation between number of CTC or CTM and tumour type or stage was observed. Neoplastic cells from both FNA and CTC/CTM were positive for vimentin but heterogeneously. CONCLUSIONS: CTC can be detected in two-thirds and CTM in more than half of patients with advanced NSCLC at diagnosis. Reasons underlying lack of CTC and CTM in some advanced lung cancers deserve further investigations.


Assuntos
Adenocarcinoma/secundário , Biomarcadores Tumorais/sangue , Carcinoma Pulmonar de Células não Pequenas/secundário , Carcinoma de Células Escamosas/secundário , Neoplasias Pulmonares/patologia , Células Neoplásicas Circulantes/patologia , Adenocarcinoma/metabolismo , Idoso , Idoso de 80 Anos ou mais , Biópsia por Agulha Fina , Carcinoma Pulmonar de Células não Pequenas/metabolismo , Carcinoma de Células Escamosas/metabolismo , Feminino , Seguimentos , Humanos , Neoplasias Pulmonares/metabolismo , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Vimentina/metabolismo
5.
Radiol Med ; 110(3): 141-8, 2005 Sep.
Artigo em Inglês, Italiano | MEDLINE | ID: mdl-16200036

RESUMO

PURPOSE: The aim of this study was to assess the usefulness of having a cytopathologist present during percutaneous CT-guided fine needle aspiration (FNA) of pulmonary lesions. MATERIALS AND METHODS: Three hundred and twenty-one FNAs of lung lesions were performed in 312 patients (218 males, 94 females; age range: 20-86 years; mean age: 66 yrs). Nodule sizes ranged from 0.5 to 8 cm. The sampling was performed by a radiologist under CT-guidance; the calibre of the needle used was 20-25 G. Smears were prepared in the Radiology Department and stained using a quick method by a cytopathologist: the sample adequacy was assessed and, if possible, a preliminary diagnosis was made. An additional FNA was requested if the first aspirate was considered diagnostically inadequate. The diagnostic accuracy was examined by reviewing the clinical data and by correlating with the histological material and the clinical outcome. RESULTS: Satisfactory diagnostic material was obtained in 275 of the 321 FNA (86%): 231 were malignant (72%), 8 suspicious (3%) and 36 were negative for malignancy (11%). Forty-six of the 321 specimens (14%) were considered inadequate for any diagnostic verification. An additional FNA was performed immediately in 60 cases (19%). Forty-two subjects developed pneumothorax: 21 patients (50%) of these required thoracic drainage. Blood effusion around the lesion site or adjacent to the needle path was observed in 39 patients (12%). Sensitivity was 99%, specificity was 95% and diagnostic accuracy was 99%. CONCLUSIONS: CT guided aspiration cytology can be a safe and fast procedure for lung nodule characterisation. On-site immediate evaluation of FNA specimens can be beneficial in determining the adequacy of the aspirate and in providing accurate preliminary diagnoses of the specimens, thus allowing for rapid clinical decisions.


Assuntos
Adenocarcinoma/patologia , Biópsia por Agulha/métodos , Carcinoma Adenoescamoso/patologia , Carcinoma de Células Escamosas/patologia , Neoplasias Pulmonares/patologia , Pulmão/patologia , Tomografia Computadorizada por Raios X , Adenocarcinoma/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Adenoescamoso/diagnóstico , Carcinoma de Células Escamosas/diagnóstico , Citodiagnóstico , Diagnóstico Diferencial , Feminino , Humanos , Neoplasias Pulmonares/diagnóstico , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Pneumotórax/diagnóstico por imagem , Radiografia Torácica
6.
Cancer ; 105(3): 152-7, 2005 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-15861428

RESUMO

BACKGROUND: The identification of specific morphologic diagnostic criteria is of paramount importance to optimize the accuracy of fine-needle aspiration cytology (FNAC) and to reduce the rate of false-negative results. In the current study, the authors reviewed a consecutive series of false-negative findings observed in the study center to define the presence and degree of cytologic abnormalities. False-negative cases were randomly mixed with true-negative cases and were reviewed by a panel of expert readers in a blinded fashion. The main objective of the current study was to identify a morphologic pattern that may permit the reduction of false-negative findings while maintaining the specificity of FNAC. METHODS: A blind review of a set of 41 consecutive false-negative and 49 true-negative breast aspiration samples was performed by a panel of 10 expert cytologists who were asked to give a final report and to classify the samples according to classic morphologic parameters. RESULTS: The majority final report sensitivity was 54% (range, 19-61%) and specificity was 73% (range, 65-92%). The average concordance with the majority report, adjusted for chance agreement (kappa statistic), was moderate at 0.54 (range, 0.40-0.65). Enlarged nuclear size, a hyperchromatic nucleus, the absence of naked nuclei, and the absence of apocrine metaplasia were reported more frequently in carcinoma cases, although not to a significant extent. The only variable found to be associated significantly (P = 0.041) with a diagnosis of carcinoma was the presence of microcalcifications, which nevertheless were found to occur in only a minority of carcinoma cases (7 of 41 cases) or controls (2 of 49 controls). Multivariate analysis demonstrated that the presence of microcalcifications (odds ration [OR] of 3.0; 95% confidence interval [95% CI], 1.2-7.4), the absence of naked nuclei (OR of 2.4; 95% CI, 1.3-4.4), and enlargement of the nucleus (OR of 1.9; 95% CI, 1.1-3.4) were all independently associated with false-negative findings. Diagnostic accuracy using a morphology-based score did not appear to improve the results substantially compared with the final report (sensitivity of 0.46 vs. 0.54 [P = 0.508] and a specificity of 0.80 vs. 0.73 [P = 0.218]). CONCLUSIONS: The results of the current study confirm that breast FNAC false-negative results are at least partially the result of underreporting of abnormalities that may be noted at review. Detailed analysis of a single morphologic characteristic was found to be of limited diagnostic value, suggesting that operators do perceive abnormalities but cannot translate these findings into distinct morphologic categories.


Assuntos
Biópsia por Agulha Fina , Neoplasias da Mama/patologia , Doenças Mamárias/patologia , Estudos de Coortes , Intervalos de Confiança , Citodiagnóstico/normas , Citodiagnóstico/tendências , Diagnóstico Diferencial , Reações Falso-Negativas , Feminino , Humanos , Imuno-Histoquímica , Análise Multivariada , Estadiamento de Neoplasias , Variações Dependentes do Observador , Razão de Chances , Curva ROC , Medição de Risco , Sensibilidade e Especificidade , Manejo de Espécimes
7.
Cancer ; 99(3): 129-34, 2003 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-12811852

RESUMO

BACKGROUND: The AutoPap 300 QC system (Tripath Imaging, Inc., Burlington, NC) is an automated device that was designed to screen conventionally prepared cervical smears and, more recently, thin-layer slide preparations. The system has been tested in large clinical trials. METHODS: A total of 14,145 cervical smears obtained from participants in the Florence screening program were eligible for the study. Smears were processed first with the AutoPap system and were classified into three different categories: 1) no further review (NFR), 2) review, and 3) process review (PR). Conventional manual reading was performed by 10 experienced cytopathologists. RESULTS: After AutoPap processing, 2398 smears were classified as NFR (16.9%), and 1818 smears were classified as PR (12.8%). Overall, there were 188 inadequate smears (1.3%) at conventional review and 125 inadequate smears (0.88%) at AutoPap review. Six-month repeat smears were prompted by 330 conventional reviews (2.3%) and by 222 AutoPap reviews (1.56%). Similarly, referral to colposcopy was prompted by 179 conventional reviews (1.2%) and by 147 AutoPap reviews (1.0%). Overall, 32 patients were diagnosed with high-grade cervical intraepithelial neoplasia as a result of assessment. Conventional reading detected 31 patients (28 patients were referred for colposcopy, and 3 patients were referred for repeat cytology), and the AutoPap system detected 30 patients (27 patients were referred for colposcopy, and 3 patients were referred for repeat cytology). CONCLUSIONS: The current experience suggested that conventional reading and AutoPap reading of cervical smears had essentially the same sensitivity, with slightly greater specificity for the AutoPap system. Thus, comparisons of the AutoPap system and conventional reading should focus mainly on cost analysis.


Assuntos
Programas de Rastreamento/métodos , Esfregaço Vaginal/métodos , Automação , Neoplasia Intraepitelial Cervical/patologia , Custos e Análise de Custo , Estudos de Viabilidade , Feminino , Humanos , Sensibilidade e Especificidade , Neoplasias do Colo do Útero/patologia , Esfregaço Vaginal/economia , Esfregaço Vaginal/instrumentação
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