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1.
Arch. endocrinol. metab. (Online) ; 61(3): 288-290, May-June 2017. graf
Article in English | LILACS | ID: biblio-887560

ABSTRACT

SUMMARY The whole-body iodine-131 scintigraphy is an imaging technique in monitoring patients with a history of thyroid cancer. Although the rate of false positives is negligible, it is not nonexistent. We report the case of an intervened and treated patient for thyroid cancer with good clinical and biochemical response. Scintigraphic findings were consistent with unsuspected bone metastasis. Fused SPECT/CT data allowed accurate diagnosis of giant diaphragmatic hernia associated with intrathoracic stomach, a very rare pathology that can lead to false positive results.


Subject(s)
Humans , Female , Aged , Bone Neoplasms/secondary , Bone Neoplasms/diagnostic imaging , Carcinoma/pathology , Carcinoma/diagnostic imaging , Single Photon Emission Computed Tomography Computed Tomography/methods , Hernia, Diaphragmatic/diagnostic imaging , Stomach/diagnostic imaging , Thyroid Neoplasms/pathology , Thyroid Neoplasms/diagnostic imaging , Carcinoma, Papillary , Diagnosis, Differential , Whole Body Imaging , Thyroid Cancer, Papillary , Iodine Radioisotopes
2.
Rev. med. nucl. Alasbimn j ; 11(43)jan. 2009. ilus, tab, graf
Article in Spanish | LILACS | ID: lil-522187

ABSTRACT

Objetivo: Evaluar la utilidad de la gammagrafía renal con 99mTc-DMSA en el diagnóstico de pielonefritis aguda en niños con infección del tracto urinario (ITU), en comparación con la urografía intravenosa (UIV), ecografía renal y cistouretrografía miccional seriada (CUMS). Material y métodos: Se han estudiado 114 niños con sospecha de ITU, en su primer episodio. La técnica isotópica ha consistido en la administración de 2-4 mCi ( 74-148 MBq) de 99mTc-DMSA, obteniéndose imágenes posterior y oblicuas posterior derecha e izquierda con colimador “pinhole”; y anterior y posterior con colimador “plano”a las 2-4 horas. Resultados: La sensibilidad y la especificidad de la gammagrafía renal con 99mTc-DMSA fue del 90 por ciento y 95 por ciento respectivamente. En la ecografía renal fueron del 52 por ciento y 86 por ciento. En la CUMS del 30 por ciento y 90 por ciento. Y en la UIV del 30 por ciento y del 91 por ciento. Estos resultados muestran que la gammagrafía renal con 99mTc-DMSA presentó mejor sensibilidad y especificidad que UIV, ecografía renal y CUMS en el diagnóstico de pielonefritis en niños con ITU. Conclusión: Consideramos la gammagrafía renal con 99mTc-DMSA, como el método inicial de evaluación de ITU, presentando mejor sensibilidad y especificidad que UIV, ecografía renal y CUMS.


Objective: To evaluate the usefullness of the renal scintigraphy with 99mTc-DMSA in the diagnosis of acute pyelonephritis in children with urinay tract infection (UTI), in comparison with intravenous urography (IVU), renal ultrasonography and voiding cystourethrogram. Material and Methods: One hundred and fourteen children with suspected UTI in the first episody. The isotopic technique consisted of administration 2-4 mCi ( 74-148 MBq) 99mTc-DMSA i.v. obtaining posterior and left and right posterior obliques views with pinhole collimator; and posterior and anterior views with parallel hole collimator, after 2-4 hours. Results: The overall sensitivity and specificity for the renal scintigraphy with 99mTc-DMSA was 90 percent and 95 percent respectively. In renal ultrasonography was 52 percent and 86 percent respectively. In voiding cystourethrogram was 30 percent and 90 percent respectively. And in IVU was 30 percent and 91 percent respectively. Conclusion: We consider renal scintigraphy with 99mTc-DMSA, the first method in the evaluation of UTI, with better sensitivity and specificity than renal ultrasonography, voiding cystourethrogram and IVU.


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Pyelonephritis , Ultrasonography , Acute Disease , Urinary Tract Infections , Pyelonephritis , Pyelonephritis , Radiopharmaceuticals , Sensitivity and Specificity , Urography/methods
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