RESUMO
ABSTRACT: Plasmablastic lymphoma (PBL) is a rare and aggressive variant of diffuse large B-cell lymphoma which is associated with HIV infection. Recently, it has also been reported in immunocompetent and solid organ transplant patients. PBL commonly presents in extranodal regions such as oral cavity, digestive tract, and skin. Orbital involvement by PBL is extremely rare with only few reports in the literature. We present a case of PBL involving the bilateral orbits in an immunocompetent patient with 1-year follow-up on 18F-FDG PET/CT scan.
Assuntos
Infecções por HIV , Linfoma Difuso de Grandes Células B , Linfoma Plasmablástico , Fluordesoxiglucose F18 , Humanos , Linfoma Difuso de Grandes Células B/diagnóstico por imagem , Linfoma Plasmablástico/diagnóstico por imagem , Tomografia por Emissão de Pósitrons combinada à Tomografia ComputadorizadaRESUMO
ABSTRACT: Brown adipose tissue of cervical, supraclavicular, and paravertebral regions can show increased FDG uptake. But human white adipose tissue (WAT) shows negligible FDG uptake on 18F-FDG PET/CT scan. We present a case of carcinoma cervix treated with concurrent chemoradiation. 18F-FDG PET/CT shows altered biodistribution of FDG with intense FDG uptake throughout the WAT. Later on, patient confirmed taking herbal medication for herpes zoster infection, which could contain corticosteroids, resulting in enhanced WAT uptake of 18F-FDG.
Assuntos
Fluordesoxiglucose F18 , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Tecido Adiposo Marrom/diagnóstico por imagem , Tecido Adiposo Marrom/metabolismo , Tecido Adiposo Branco , Feminino , Fluordesoxiglucose F18/metabolismo , Humanos , Tomografia por Emissão de Pósitrons , Compostos Radiofarmacêuticos/metabolismo , Distribuição TecidualRESUMO
ABSTRACT: Esophago-pulmonary fistulas are very less reported in literature. 18F-FDG PET/CT scan is routinely used for evaluation of patients of carcinoma esophagus. We present a case of carcinoma esophagus with acquired esophago-pulmonary fistula diagnosed on 18F-FDG PET/CT scan.
Assuntos
Emergências , Neoplasias Esofágicas/complicações , Fluordesoxiglucose F18 , Achados Incidentais , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Fístula do Sistema Respiratório/complicações , Fístula do Sistema Respiratório/diagnóstico por imagem , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
Extrathyroidal manifestations of autoimmune thyroid disorders include thyroid-associated ophthalmopathy, thyroid dermopathy, and thyroid acropachy. Thyroid acropachy is an extreme manifestation of autoimmune thyroid disorder characterized by clubbing and swelling of fingers and toes, with or without periosteal reaction of the distal bones. We present a 50-year-old woman, posttreatment for carcinoma breast (6 years back) and referred for bone scan for generalized body ache. Bone scan findings resulting in detailed clinical evaluation prompted toward the suspicion of a thyroidal disease with ultimate diagnosis of Graves' disease.
