RESUMO
Technetium-99m (99mTc)-pertechnetate can be taken up by both gastric mucosa and thyroid tissue. Ectopic gastric mucosa of upper esophagus found in thyroid scintigraphy is rare. We reported a 31-year-old woman who underwent 99mTc-pertechnetate thyroid static scintigraphy for abnormal ultrasound findings. A focal uptake lesion was found in her upper chest. Single photon emission computed tomography/computed tomography (SPECT/CT) imaging showed increased uptake in multiple sites of the upper esophagus without significant thickening. Eventually, gastroscopic findings revealed multiple ectopic gastric mucosa of upper esophagus.
Assuntos
Pertecnetato Tc 99m de Sódio , Glândula Tireoide , Humanos , Feminino , Adulto , Glândula Tireoide/diagnóstico por imagem , Tecnécio , Mucosa Gástrica/diagnóstico por imagem , Tomografia Computadorizada com Tomografia Computadorizada de Emissão de Fóton Único , Esôfago/diagnóstico por imagem , Compostos RadiofarmacêuticosAssuntos
Granulomatose com Poliangiite , Neoplasias Cardíacas , Fluordesoxiglucose F18 , Granulomatose com Poliangiite/diagnóstico por imagem , Neoplasias Cardíacas/diagnóstico por imagem , Humanos , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Tomografia por Emissão de PósitronsRESUMO
ABSTRACT: A left pulmonary nodule was identified by CT scan in a 53-year-old woman who had a car accident 10 days earlier. 18F-FDG PET/CT showed multiple FDG-avid lesions located at the left lung nodule, mediastinal lymph nodules, and L4 vertebral body. 68Ga-FAPI PET/CT was performed for further evaluation. However, 68Ga-FAPI demonstrated intense FAPI uptake in the accident-related fracture of the L4 vertebral body. This case documents that the fracture of the vertebral body may cause FAPI uptake, and nuclear clinicians evaluating 68Ga-FAPI imaging should be aware of this potential pitfall.
Assuntos
Fraturas Ósseas/diagnóstico por imagem , Fraturas Ósseas/metabolismo , Neoplasias Pulmonares/complicações , Neoplasias Pulmonares/diagnóstico por imagem , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Quinolinas/metabolismo , Corpo Vertebral/lesões , Artefatos , Transporte Biológico , Feminino , Fraturas Ósseas/complicações , Humanos , Pessoa de Meia-IdadeRESUMO
ABSTRACT: A 46-year-old man presented with a 3-month history of epistaxis. CT and MRI scan showed a soft tissue mass in the left nasal cavity. An excisional biopsy of the mass revealed extramedullary plasmacytoma. 18F-FDG PET/CT showed intense activity in the region of the left nasal cavity but no other FDG-avid lesions. Additional workups did not reveal any evidence of systematic disease. Based on these findings, the patient was diagnosed as having solitary nasal extramedullary plasmacytoma. He received the local radiation therapy. During the 3-month follow-up, his symptom was relieved.
Assuntos
Fluordesoxiglucose F18 , Neoplasias Nasais/diagnóstico por imagem , Plasmocitoma/diagnóstico por imagem , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
A 5-year-old boy presented with right testicular swelling for 1 week. Ultrasonography revealed a right testicular hypoechoic mass with increased blood flow. A malignant tumor was suspected, and further investigation with F-FDG PET/CT showed a soft tissue mass with increased FDG uptake in the right testis. Biopsy of the mass confirmed a diagnosis of myeloid sarcoma.
