RESUMEN
ABSTRACT: Chordoid meningiomas, rare meningioma variants, are characterized by their histopathological features and clinical behavior resembling that of other chondroid/myxoid neoplasms. We present a case of pathology-proven chordoid meningioma imaged with both 68 Ga-DOTATATE and 18 F-FDG PET images during a complicated postoperative course with multiple episodes of local recurrence and, ultimately, extracranial metastasis. This case underscores the aggressive behavior of chordoid meningiomas while highlighting how molecular imaging plays an important role in clinical monitoring and guidance of management.
Asunto(s)
Fluorodesoxiglucosa F18 , Neoplasias Meníngeas , Meningioma , Compuestos Organometálicos , Tomografía de Emisión de Positrones , Humanos , Meningioma/diagnóstico por imagen , Meningioma/patología , Neoplasias Meníngeas/diagnóstico por imagen , Neoplasias Meníngeas/patología , Metástasis de la Neoplasia , Femenino , Recurrencia , Persona de Mediana Edad , Neoplasias Encefálicas/diagnóstico por imagen , Neoplasias Encefálicas/patología , Recurrencia Local de Neoplasia/diagnóstico por imagenRESUMEN
ABSTRACT: Acute mesenteric ischemia resulting in bowel necrosis is a surgical emergency. First identification of acute mesenteric ischemia with FDG PET/CT is uncommon, because patients with bowel ischemia are usually diagnosed by other imaging methods such as CT. Nevertheless, prompt imager recognition of the PET/CT findings of mesenteric ischemia and necrosis is critical for proper triage of the patient to potentially lifesaving interventions. We present a 39-year-old woman with portal vein thrombosis who was sent for 18F-FDG PET/CT evaluation of a suspected pancreatic head neoplasm but was unexpectedly found to have ischemic and necrotic small bowel secondary to mesenteric venous infarction.
Asunto(s)
Fluorodesoxiglucosa F18 , Isquemia Mesentérica , Adulto , Femenino , Humanos , Isquemia/diagnóstico por imagen , Isquemia Mesentérica/diagnóstico por imagen , Vena Porta , Tomografía Computarizada por Tomografía de Emisión de Positrones , Tomografía Computarizada por Rayos XRESUMEN
In this report, we present 18F-FDG PET/CT findings of reactive left axillary and supraclavicular hypermetabolic lymphadenopathy, as well as ipsilateral deltoid muscle injection site radiotracer uptake, related to recent coronavirus disease 2019 (COVID-19) vaccination in a patient with osteosarcoma. With the growing number of patients receiving COVID-19 vaccine, recognition of benign characteristic 18F-FDG PET/CT image findings will ensure staging and restaging accuracy and avoid unnecessary biopsy.