RESUMO
ABSTRACT: A 29-year-old man diagnosed with monkeypox infection underwent an 18 F-FDG PET/CT for the study of organic involvement in the context of a nonsatisfactory clinical evolution. He had a history of HIV (with undetectable viral load). FDG PET/CT showed multiple hypermetabolic lymphadenopathies and bilateral pulmonary nodules with mild 18 F-FDG uptake.
Assuntos
Infecções por HIV , Mpox , Masculino , Humanos , Adulto , Fluordesoxiglucose F18 , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Compostos RadiofarmacêuticosRESUMO
ABSTRACT: Sentinel lymph node biopsy is the standard of care for axillary staging in early, clinically node-negative breast cancer. The lymphatic pathways could be altered after receiving axillary treatments such as radiation and/or axillary lymph node dissection. We report a case of inguinal and contralateral axilla SLNs in breast cancer recurrence.
Assuntos
Neoplasias da Mama , Linfadenopatia , Linfonodo Sentinela , Humanos , Feminino , Neoplasias da Mama/patologia , Linfonodo Sentinela/diagnóstico por imagem , Linfonodo Sentinela/patologia , Metástase Linfática/patologia , Estadiamento de Neoplasias , Recidiva Local de Neoplasia/diagnóstico por imagem , Recidiva Local de Neoplasia/patologia , Linfonodos/patologia , Biópsia de Linfonodo Sentinela , Excisão de Linfonodo , Axila/patologia , Axila/cirurgiaRESUMO
The follow-up of glioma patients after therapeutic intervention remains a challenging topic, as therapy-related changes can emulate true progression in contrast-enhanced magnetic resonance imaging. 18F-fluoroethyl-tyrosine (18F-FET) is a radiopharmaceutical that accumulates in glioma cells due to an increased expression of L-amino acid transporters and, contrary to gadolinium, does not depend on blood-brain barrier disruption to reach tumoral cells. It has demonstrated a high diagnostic value in the differentiation of tumoral viability and pseudoprogression or any other therapy-related changes, especially when combining traditional visual analysis with modern radiomics. In this review, we aim to cover the potential role of 18F-FET positron emission tomography in everyday clinical practice when applied to the follow-up of patients after the first therapeutical intervention, early response evaluation, and the differential diagnosis between therapy-related changes and progression.