title: [Perivascular epithelioid tumors: Utility of the positron emission tomography with 18F-fluorodesoxyglucose (PET-TAC FDG) in their staging and follow-up].
abstract: Perivascular epithelioid tumors (PEComas) are a rare group of mesenchymal neoplasms with an unpredictable natural history and uncertain malignant potential. Uterine involvement and their association with tuberous sclerosis are typical for these tumors. We present a case of a 40-year old patient who was incidentally diagnosed of a uterine PEComa and serial studies of PET-CT with FDG were performed for staging and therapeutic response assessment. FDG PET-CT proved to be a valuable tool for detecting unsuspected pulmonary metastases and defining the reassessment of the patient after chemotherapy. The findings suggest that since this is a rare tumor, which does not always have benign behaviour, PET-CT may be a useful diagnostic imaging procedure for staging and clinical monitoring of patients who suffer this type of tumors.
authors.affiliation: Servicio de Medicina Nuclear, Hospital Universitario Virgen de las Nieves, Granada, España.
authors.forename: M M
authors.initials: MM
authors.lastname: Navarro-Pelayo Lainez
authors.forename: C
authors.initials: C
authors.lastname: Ramos-Font
authors.forename: A C
authors.initials: AC
authors.lastname: Rebollo Aguirre
authors.forename: A
authors.initials: A
authors.lastname: Rodríguez-Fernández
authors.forename: J M
authors.initials: JM
authors.lastname: Llamas-Elvira
mesh_terms: D000328:Adult; D018322:Angiofibroma / Q000000981:diagnostic imaging / Q000235:genetics; D017024:Chemotherapy, Adjuvant; D003131:Combined Modality Therapy; D016889:Endometrial Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D004967:Estrogens; D005153:Facial Neoplasms / Q000235:genetics; D005260:Female; D005462:Fluorine Radioisotopes; D019788:Fluorodeoxyglucose F18; D006801:Humans; D007044:Hysterectomy; D033162:Incidental Findings; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000556:secondary*; D009376:Neoplasms, Hormone-Dependent / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000556:secondary / Q000601:surgery; D009378:Neoplasms, Multiple Primary / Q000000981:diagnostic imaging; D054973:Perivascular Epithelioid Cell Neoplasms / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000556:secondary / Q000601:surgery; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D014057:Tomography, X-Ray Computed; D014402:Tuberous Sclerosis / Q000000981:diagnostic imaging / Q000235:genetics
chemical_list: D004967:Estrogens; D005462:Fluorine Radioisotopes; D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18