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1.
World J Surg ; 21(3): 270-4, 1997.
Artigo em Inglês | MEDLINE | ID: mdl-9015169

RESUMO

This study was designed to evaluate the accuracy of ultrasonography alone and in combination with fine-needle aspiration biopsy (FNAB) for detection of axillary metastases of nonpalpable lymph nodes in breast cancer patients. Ultrasonography was carried out in 150 axillas of 148 patients (mean age 57 years, range 30-80 years); and in 93 axillas lymph nodes were detected. Nodes were described according to their dimension and echo patterns and were compared with histopathologic results. FNAB was carried out in 81 axillas (122 nodes). The sensitivity of ultrasonography was highest (87%) when size (length >5 mm) was used as criterion for malignancy, but the specificity was rather low (56%). When nodes with a malignant pattern (echo-poor or inhomogeneous) were visualized, specificity was 95%. Ultrasound-guided FNAB had a sensitivity of 80% and a specificity of 100% and detected metastases in 63% of node-positive patients. It is concluded that FNAB is an easy, reliable, inexpensive method for identifying patients with positive nodes. In the case of negative findings, other diagnostic procedures to exclude lymph node metastases, such as sentinel node mapping, could be performed.


Assuntos
Biópsia por Agulha/métodos , Neoplasias da Mama/patologia , Linfonodos/diagnóstico por imagem , Linfonodos/patologia , Axila , Feminino , Humanos , Metástase Linfática , Pessoa de Meia-Idade , Estudos Prospectivos , Sensibilidade e Especificidade , Ultrassonografia
2.
Radiother Oncol ; 25(2): 97-102, 1992 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-1438941

RESUMO

Results are presented for 176 patients with stage I and II primary testicular seminoma treated at the Dr. Daniel den Hoed Cancer Center (DDHCC) between 1975 and 1985. The median follow-up time was 7 years and 4 months. One-hundred and seventy-four (99%) of these patients were treated primarily with radiotherapy after extensive staging. According to the Royal Marsden Staging Classification, 132 patients (75%) were stage I, 8 (5%) were stage IIA, 21 (12%) were stage IIB, 9 (5%) were stage IIC and for 6 stage II patients a further subdivision was not possible. At 5 years the actuarial relapse-free survival and the actuarial survival were 95 and 99%, respectively, for stage I, and 77 and 91% for stage II. Prophylactic irradiation of the mediastinum has not been performed for stage II patients. Five stage II patients relapsed in the mediastinum. Four out of these five relapses were cured with chemotherapy, and in one case, in combination with radiotherapy, at the time of relapse. These results indicated that prophylactic irradiation of the mediastinum appeared to be unnecessary for stage II patients. Tumour markers were not useful in the discovery of metastases. Five years after treatment no relapses were seen. Therefore, it is proposed that a maximum follow-up of 5 years is sufficient to measure disease-free survival.


Assuntos
Disgerminoma/radioterapia , Disgerminoma/cirurgia , Orquiectomia , Neoplasias Testiculares/radioterapia , Neoplasias Testiculares/cirurgia , Análise Atuarial , Adulto , Terapia Combinada , Disgerminoma/mortalidade , Seguimentos , Humanos , Masculino , Radioterapia de Alta Energia , Estudos Retrospectivos , Taxa de Sobrevida , Neoplasias Testiculares/mortalidade , Fatores de Tempo
3.
Radiology ; 185(1): 157-61, 1992 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-1523300

RESUMO

A diagnostic approach to assess liver metastases from colorectal carcinoma was prospectively evaluated in 30 patients with and without metastases on the basis of findings at conventional computed tomography (CT). With the technique, termed continuous CT angiography (CCTA), CT data were continuously sampled for 24 seconds at the same section level after initiation of a 3-second injection of 10-20 mL of contrast medium in the common hepatic artery. The procedure was repeated for each contiguous section level of the liver. Findings at preoperative ultrasound (US), conventional CT, and CCTA were compared with those at intraoperative US and surgical exploration as the standard of reference. Forty-four liver metastases were identified in 16 patients, and 14 patients had no metastases. CCTA had a sensitivity of 98% (43 lesions identified) and higher accuracy (81% [54 of 67 diagnoses]) than US and conventional CT. The data indicate that CCTA can supplement information obtained with conventional imaging techniques in patients who must undergo hepatic surgery because of metastases from colorectal carcinoma.


Assuntos
Carcinoma/secundário , Neoplasias do Colo/diagnóstico por imagem , Neoplasias Hepáticas/secundário , Neoplasias Retais/diagnóstico por imagem , Adulto , Idoso , Carcinoma/diagnóstico por imagem , Feminino , Humanos , Neoplasias Hepáticas/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios X
4.
Ned Tijdschr Geneeskd ; 136(33): 1602-5, 1992 Aug 15.
Artigo em Holandês | MEDLINE | ID: mdl-1407093

RESUMO

The results were evaluated of cytological and histological examination of 215 bone biopsies taken with an electric minidrill in 211 patients with suspected malignancies in bones. 171 biopsies were taken in 167 patients with a known malignancy. In 78 cases a malignancy was demonstrated including 4 cases of a second primary malignancy. 44 biopsies of patients without a known primary malignancy resulted in 19 cases of malignancy, mainly metastatic disease. There were no primary bone tumours. Follow-up showed a false negative result in 5 patients, all with known primary malignancies. Follow-up of the patients without known malignancies showed no false negatives. The sensitivity of cytology alone was 92% and the sensitivity of histology alone was 76%. The combination of cytology and histology resulted in a sensitivity of 95%. The specificity of the procedure was 100%.


Assuntos
Biópsia/métodos , Neoplasias Ósseas/patologia , Osso e Ossos/patologia , Biópsia/instrumentação , Reações Falso-Negativas , Humanos , Equipamentos Ortopédicos , Estudos Retrospectivos , Sensibilidade e Especificidade
5.
Ned Tijdschr Geneeskd ; 134(41): 2011-3, 1990 Oct 13.
Artigo em Holandês | MEDLINE | ID: mdl-2234165

RESUMO

Complications of Celestin oesophageal tube disintegration are discussed with reference to the case of a patient with a tube inserted because of extrinsic stenosis presenting with upper abdominal complaints.


Assuntos
Estenose Esofágica/terapia , Perfuração Intestinal/etiologia , Intubação/efeitos adversos , Antro Pilórico , Adenocarcinoma/complicações , Adenocarcinoma/secundário , Neoplasias da Mama/patologia , Neoplasias Esofágicas/complicações , Neoplasias Esofágicas/secundário , Estenose Esofágica/etiologia , Feminino , Humanos , Pessoa de Meia-Idade
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