I-131 MIBG scintigraphy of neuroectodermal tumors. Comparison between I-131 MIBG and In-111 DTPA-octreotide.
Clin Nucl Med
; 20(3): 243-9, 1995 Mar.
Article
em En
| MEDLINE
| ID: mdl-7750219
ABSTRACT
An account is given of the results observed with I-131 MIBG scintigraphy in four patients (1 bladder pheochromocytoma, 3 neuroblastomas) chosen on account of their particular clinical and diagnostic interest from a series of 41 apudoma patients examined by means of this technique. In the first patient, the unusual site of the tumor in the posterior wall of the bladder meant that its detection by I-131 MIBG was only possible after catheterization of the bladder. In the second patient, uptake in the metastasis was only evident after removal of the primary tumor. In the third patient, the scintiscan revealed several metastases (some in bone) not detected by CT. In the fourth patient (congenital neuroblastoma), enhanced uptake accompanied the appearance of high plasma catecholamine and urinary vanillylhandelic acid values, suggesting a functional switch from a nonsecreting to a secreting form. a supplementary In-111 DTPA-Octreotide (OCT) scintiscan of this patient demonstrated the presence of somatostatin receptors on the neuroblasts. Thus, this examination would seem particularly useful for the differentiation of nonsecreting neuroblastomas. Its employment in assessment of the therapeutic capacity of OCT itself is also suggested.
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Coleções:
01-internacional
Temas:
Geral
/
Tipos_de_cancer
/
Outros_tipos
Base de dados:
MEDLINE
Assunto principal:
Feocromocitoma
/
Radioisótopos de Índio
/
Octreotida
/
Ácido Pentético
/
Radioisótopos do Iodo
/
Iodobenzenos
/
Neuroblastoma
Limite:
Adolescent
/
Child, preschool
/
Humans
/
Infant
Idioma:
En
Revista:
Clin Nucl Med
Ano de publicação:
1995
Tipo de documento:
Article
País de afiliação:
Itália