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1.
Artículo en Alemán | MEDLINE | ID: mdl-10867495

RESUMEN

PURPOSE: The purpose of this study was the clinical evaluation of ultrasound-guided biopsy in comparison with ultrasound-guided fine-needle aspiration biopsy of identical, non-palpable breast lesions. MATERIALS AND METHODS: From August 1997 until July 1998, 73 ultrasound-guided biopsies were performed in 66 patients with non-palpable lesions of the breast. In 18 patients (age 33-77 years) with 20 non-palpable lesions, fine-needle aspiration biopsy (20-G needle) and biopsy (18-G biopsy needle) were performed on a single occasion. This was the patient selection of our retrospective study. RESULTS: One malignant neoplasm was found among the 20 biopsied lesions, while the remaining 19 lesions were of a benign nature. In 20% of the cases, the material obtained by fine-needle biopsy was not sufficient for a cytologic diagnosis, while biopsy allowed a diagnosis in 19/20 cases. No complications were observed. CONCLUSIONS: Ultrasound-guided biopsy using an 18-G needle is a suitable method for the evaluation of non-palpable lesions that are only visible on ultrasound. It represents an attractive alternative to fine-needle aspiration in the absence of experienced cytologic diagnosticians.


Asunto(s)
Biopsia con Aguja , Biopsia/métodos , Neoplasias de la Mama/patología , Mama/patología , Ultrasonografía Mamaria , Adulto , Anciano , Enfermedades de la Mama/diagnóstico , Enfermedades de la Mama/patología , Neoplasias de la Mama/diagnóstico , Carcinoma Ductal de Mama/diagnóstico , Carcinoma Ductal de Mama/patología , Diagnóstico Diferencial , Femenino , Fibroadenoma/diagnóstico , Fibroadenoma/patología , Enfermedad Fibroquística de la Mama/diagnóstico , Enfermedad Fibroquística de la Mama/patología , Humanos , Persona de Mediana Edad
2.
Abdom Imaging ; 21(4): 345-52, 1996.
Artículo en Inglés | MEDLINE | ID: mdl-8661581

RESUMEN

BACKGROUND: To compare endorectal coil magnetic resonance imaging (MRI) with body coil MRI in detecting local recurrence of gynecologic tumors and prostate and rectal cancers. METHODS: Forty-six patients with suspected recurrent pelvic malignancies (13 gynecologic, 15 prostatic, and 18 anorectal primaries) were enrolled in the study. Axial T1- and T2-weighted body coil images and T2- and contrast-enhanced T1-weighted axial endorectal coil images were obtained on a 1.5 T system. Results of the MR examinations were compared with histological findings and follow-up examinations with respect to the diagnostic accuracy and diagnostic confidence for assessment or exclusion of local recurrence. RESULTS: Recurrent disease was histologically confirmed in eight patients with primary gynecologic malignancies, seven with suspected prostatic recurrence, and seven with suspected anorectal recurrence. Overall, accuracy of body coil MRI was 67% for gynecologic tumors, 36% for prostatic recurrences, and 59% for rectal recurrences. T2- and contrast-enhanced T1-weighted endorectal sequences yielded similar results, with an accuracy of 73% for depiction of gynecologic recurrence, 77% for prostatic recurrence, and 77% for rectal recurrence. The difference in accuracy between body coil and endorectal coil examinations was statistically significant (p < 0. 05) only for prostatic cancer. Diagnostic confidence was, however, significantly improved (p < 0.05) in all tumors (T2-weighted endorectal coil examination was superior to T2-weighted body coil images in 71% of cases). CONCLUSION: Although the results of endorectal coil MRI are only slightly superior to those of body coil MRI for the detection of recurrent gynecologic and anorectal tumors, diagnosis can be made with greater diagnostic confidence in many cases. For detection of prostatic recurrence, endorectal MRI is highly recommended.


Asunto(s)
Imagen por Resonancia Magnética/instrumentación , Recurrencia Local de Neoplasia/diagnóstico , Neoplasias Pélvicas/diagnóstico , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias del Ano/diagnóstico , Medios de Contraste , Diseño de Equipo , Femenino , Estudios de Seguimiento , Enfermedades de los Genitales Femeninos/diagnóstico , Humanos , Aumento de la Imagen , Masculino , Persona de Mediana Edad , Neoplasias de la Próstata/diagnóstico , Neoplasias del Recto/diagnóstico , Sensibilidad y Especificidad
3.
Schweiz Med Wochenschr ; 126(3): 69-76, 1996 Jan 20.
Artículo en Alemán | MEDLINE | ID: mdl-8578288

RESUMEN

AIM: To determine whether the term "fractional D&C" is justified with respect to the uterine cervix and corpus fractions, and what indications and results are found when a large population at a university hospital is analyzed. METHODS: In this retrospective study covering a 3-year period at the Department of Gynecology, University Hospital of Zurich, indications and results of fractional D&C were obtained from hospital records stored in a data bank. The curettage results of hysterectomized women were compared with the histological findings of the hysterectomy specimens. RESULTS: 938 women (mean age 52 years) underwent fractional D&C. 38% had postmenopausal, 36% premenopausal and 13% perimenopausal abnormal bleeding. For 5% there was a sonographic finding without bleeding disorders, 4% had cervical polyps, 1% breast cancer, and 3% other diagnoses. In 13% of the cases the corpus curettage material could not be evaluated. For 43%, the corpus material appeared normal and in 5% a malignancy was found. In 74% of the cervical fractions nothing abnormal was detected, in 14% no conclusive evaluation of the material was possible, and in 3% the histological report showed a malignancy. In 20% of the cases the cervix curettage material was contaminated with material from the uterus cavum. CONCLUSIONS: For cases with cancer of the cervix, the sensitivity of fractional D&C was 80%, compared with a specificity of 66.7%. With a positive predictive value of 52.2%, the term "fractional D&C" is in many cases not justified. Our data and recent literature have prompted us to draw up new criteria for evaluation of abnormal vaginal bleeding, or a new set of indications for fractional D&C and hysteroscopy.


Asunto(s)
Dilatación y Legrado Uterino/métodos , Hemorragia Uterina/patología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Algoritmos , Femenino , Humanos , Histerectomía , Trastornos de la Menstruación/patología , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Estudios Retrospectivos , Sensibilidad y Especificidad , Neoplasias del Cuello Uterino/patología , Hemorragia Uterina/diagnóstico
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