RESUMO
Hemangiomas are congenital vascular tumors frequently referred for Tc-99m RBC imaging. A case of soft tissue cavernous hemangioma located in the right side of the face and neck is presented. The importance of the Valsalva maneuver in outlining this lesion is described, and a brief review of the literature is presented.
Assuntos
Neoplasias de Cabeça e Pescoço/diagnóstico por imagem , Hemangioma Cavernoso/diagnóstico por imagem , Manobra de Valsalva , Adulto , Eritrócitos , Feminino , Humanos , Cintilografia , Pertecnetato Tc 99m de SódioRESUMO
Radionuclide cisternography (RNC) is an excellent method of studying cerebrospinal fluid (CSF) dynamics and fistulous communications. Two patients are described in which pleural cerebrospinal fluid fistulae were found by this technique. In addition, marking the area presurgically reduced operating room time in one patient. Such communications are important to locate since they can cause significant loss of CSF as well as provide a pathway for pathogens to enter the central nervous system.
Assuntos
Dura-Máter/diagnóstico por imagem , Fístula/diagnóstico por imagem , Doenças Pleurais/diagnóstico por imagem , Adolescente , Adulto , Doenças do Sistema Nervoso Central/líquido cefalorraquidiano , Doenças do Sistema Nervoso Central/diagnóstico por imagem , Fístula/líquido cefalorraquidiano , Humanos , Masculino , Mielografia , Doenças Pleurais/líquido cefalorraquidiano , Cintilografia , Vértebras Torácicas/lesõesRESUMO
A prospective evaluation of 111In-labeled platelet scintigraphy (IPS) for the early diagnosis of acute postoperative renal transplant rejection (TR) was undertaken. The results of IPS were compared with in vitro biochemical tests, the clinical finding of graft tenderness, and combined [99mTc]DTPA and [131I]orthoiodohippurate scintigraphy. With a sensitivity of 0.93 and a specificity of 0.95, IPS provided otherwise unavailable diagnostic information. Furthermore, postoperative IPS was a good predictor of long-term allograft survival.
