[False positive with Tl-201 in the study of Ewing's sarcoma of the astragalus caused by reflex sympathetic dystrophy]

Autor:	JUSTO SERRANO-VICENTE, Caballero Carpena O, Verdú Rico J, Alcalá Santaella R, Martínez Cabllero A, Ma, Antón Leal
Předmět:	Male Adolescent Bone Neoplasms Sarcoma Ewing Talus Diagnosis Differential Reflex Sympathetic Dystrophy Calcaneus Thallium Radioisotopes Antineoplastic Combined Chemotherapy Protocols Humans False Positive Reactions Neoplasm Invasiveness Radiopharmaceuticals Radionuclide Imaging
Zdroj:	Europe PubMed Central
Popis:	We describe a 14 year old male, diagnosed of Ewing sarcoma in left astragalus. We performed two 201-Thallium scan for evaluating the response to chemotherapy (before and after the treatment). The scan performed after chemotherapy showed patchy uptake in astragalus, calcaneus and some joints of the foot. The following radiology and scintigraphy diagnosed a reflex sympathetic dystrophy in the left foot due to disuse of the limb. The 201-Thallium overestimated viability of the tumour for this reason. We must discard the presence of this kind of associated pathology in order that they could be cause of false positives.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::fc0a371bfbd920b469f6a8425ecf2b65 http://europepmc.org/abstract/med/9611281 Zobrazit plný text záznamu