[Diagnostic accuracy of fine needle aspiration cytology guided by ultrasonography in intra-abdominal and retroperitoneal lesions].
Evaluation of the fine needle aspiration cytology guided by ultrasonography in the diagnosis of abdominal and retroperitoneal tumors.


METHODS
Transversal study of diagnostic standard-criterion test.


METHODS
Ultrasonographic Unity Digestive Disease Department. Hospital Oncológico Padre Machado.


METHODS
98 patients with intraabdominal and retroperitoneal lesions.


METHODS
Fine needle aspiration cytology guided by Ultrasonography. INDICE TEST: Laparoscopy and/or laparotomy.


METHODS
Estimation of sensibility (S), Specificity (E), Efficacy (Ef), positive predictive value (VPP), negative predictive value (VPN), measure of false positives (TFP) and measure of false negatives (TFN) by diagnosis method.


RESULTS
VP: 81%; VN: 12%; FP: 1%; FN: 6%; S: 93%; E: 92.3%; Ef.: 97%; VPP: 98.7%; VPN: 66%; TFP: 1.25%; Benign lesions: 22.5%; Malignancy lesions: 65.5%; non lesions: 12%; complications: severe: 1%, non significance: 5%.


CONCLUSIONS
Fine needle aspiration cytology guided by ultrasound has high sensibility, specificity, efficacy, with low value of false positive. However, it has high incidence of false negatives and negative predictive value. We recommend diagnostic procedures when the suspicion of tumor is high did the cytology is negative.
Isern
A M
AM
Unidad de Ultrasonido y Servicio de Vías Digestivas del Hospital Oncológico Padre Machado.
Fernández
C
C
Salamanca
M
M
Bianchi
G
G
González
H
H
Virgala
M D
MD
Garnica
E
E
Vargas
F
F
Monserat
R
R
Fuentes
D
D
D000007:Abdominal Injuries / Q000000981:diagnostic imaging / Q000473:pathology*; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle / Q000009:adverse effects / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D012189:Retrospective Studies; D014463:Ultrasonography
Exactitud diagnóstica dela citología por punción aspiración con aguja fina guiada por ultrasonido en lesiones intraabdominales y retroperitoneales.