RESUMEN
ABSTRACT: Lymphoscintigraphy is a safe, minimally invasive, and well-established imaging modality for evaluating lymphatic drainage in patients with suspected lymphedema. We report a case of an 8-year-old girl with lymphangioma circumscriptum of the labium majora. She was referred to lymphoscintigraphy for swelling of the lower extremities. Scintigraphy showed widespread dermal backflow at bilateral lower limbs, aberrant uptake in the abdominal lymph nodes, and unexpected uptake in the right axillary lymph nodes.
Asunto(s)
Linfangioma , Linfocintigrafia , Femenino , Humanos , Niño , Transporte Biológico , Extremidad Inferior/diagnóstico por imagen , Ganglios Linfáticos/diagnóstico por imagen , Linfangioma/diagnóstico por imagenRESUMEN
ABSTRACT: A 57-year-old woman with history of aortic and mitral valves replacement was referred to FDG PET/CT before valvular prosthesis renewal surgery. First FDG PET/CT was suboptimal for interpretation due to prominent physiological myocardial FDG uptake, despite patient preparation including 12 hours of fasting and low-carbohydrate, fat-rich diet. Therefore, scan was repeated with IV heparin preadministration at another day and revealed focal FDG uptake on the region of prosthetic heart valves, suggesting endocarditis. FDG PET/CT has been proven to be a useful technique to detect endocarditis, but appropriate patient preparation for adequate suppression of physiological myocardial uptake is important. Heparin preadministration seems to be an important component of patient preparation.
Asunto(s)
Endocarditis Bacteriana , Endocarditis , Prótesis Valvulares Cardíacas , Endocarditis/diagnóstico por imagen , Femenino , Fluorodesoxiglucosa F18 , Prótesis Valvulares Cardíacas/efectos adversos , Heparina , Humanos , Persona de Mediana Edad , Tomografía Computarizada por Tomografía de Emisión de Positrones/métodos , RadiofármacosRESUMEN
ABSTRACT: A 47-year-old woman with atypical pituitary adenoma was referred to the neurosurgery department due to recent back pain. She had multiple transsphenoidal surgery, stereotactic body radiation, and 177Lu-DOTATATE therapy. Her spinal MRI showed multiple spinal masses. The patient underwent 68Ga-DOTATATE PET/CT to confirm the metastatic spread of the disease. PET/CT images showed increased uptake at the local recurrent tumor site and spinal metastases confirmed by biopsy to pituitary carcinoma. Our case presents the role of 68Ga-DOTATATE PET/CT in patients with pituitary carcinoma.
Asunto(s)
Adenoma , Compuestos Organometálicos , Neoplasias Hipofisarias , Femenino , Humanos , Imagen por Resonancia Magnética , Persona de Mediana Edad , Neoplasias Hipofisarias/diagnóstico por imagen , Tomografía Computarizada por Tomografía de Emisión de PositronesRESUMEN
ABSTRACT: Herpes zoster infection caused by reactivation of dormant varicella zoster virus results in painful vesicular rash in corresponding dermatome. We report a case of a 56-year-old woman with breast cancer who was referred to PET/CT scan for adjuvant chemotherapy response assessment. Her scan showed multiple FDG-avid skin lesions. Blinded to the patient's clinical information, these skin lesions initially looked suspicious for soft tissue metastases. However, the patient history revealed that she had been experiencing herpes zoster infection during the scan, and these lesions with FDG uptake were eventually confirmed to be caused by herpes zoster infection by physical examination.
