RESUMO
BACKGROUND: The purpose of this study was to describe liver regeneration in patients undergoing living-adult liver transplantation. METHODS: This prospective study included 10 donors and eight recipients who had a total of 65 computed tomographic (CT) scans. All patients had preoperative CT ( n = 18), and follow-up CT scans ( n = 47) were obtained for up to 14 months after transplantation. Liver and spleen volumes were measured by hand tracing each organ on the axial portal venous phase images. RESULTS: Both donors and recipients showed immediate increases in liver volume. However, liver regeneration was significantly faster and reached a higher peak in recipients than in donors. Splenic volume in donors demonstrated an initial increase followed by a decline, reaching the preoperative volume after 1 year. Splenic volume in recipients demonstrated immediate decline postoperatively. CONCLUSION: Restoration of liver volume occurred rapidly after transplantation, but followed different patterns in donors and recipients. Deviation from these patterns warrants further investigation.
Assuntos
Regeneração Hepática , Transplante de Fígado , Doadores Vivos , Adulto , Feminino , Humanos , Fígado/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Baço/diagnóstico por imagem , Tomografia Computadorizada por Raios XAssuntos
Cistite/diagnóstico por imagem , Lesões por Radiação/diagnóstico por imagem , Bexiga Urinária/efeitos da radiação , Carcinoma/radioterapia , Carcinoma/cirurgia , Feminino , Humanos , Histerectomia , Pessoa de Meia-Idade , Cintilografia , Bexiga Urinária/diagnóstico por imagem , Neoplasias do Colo do Útero/radioterapia , Neoplasias do Colo do Útero/cirurgiaRESUMO
One hundred consecutive thyroid images obtained by use of Tc-99m pertechnetate, in authenticated cases of hyperthyroidism, were reviewed. Calibrated images showed that only 42 of the 200 thyroid lobes (21%) were greater than 5 cm in length. The enlarged lobes occurred in 29 patients. Of these, only 4 had a multinodular appearance (and 7 patients with smaller lobes also had multinodular glands). Neither thyromegaly (by length) nor multinodular appearance are common features of hyperthyroidism in this area. There were 12 instances of pyramidal lobes in the hyperthyroid men (12 of 26 = 46%) and 24 cases in women (24 of 74 = 32%). The site of origin of the pyramidal lobe was from the left in 17, from right in 16, and from the midline in 3 cases. During the period of review of all thyroid images, only one other case of a pyramidal lobe was found (a case of multinodular goiter).
Assuntos
Hipertireoidismo/diagnóstico por imagem , Compostos Radiofarmacêuticos , Pertecnetato Tc 99m de Sódio , Glândula Tireoide/diagnóstico por imagem , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cintilografia , Glândula Tireoide/patologiaRESUMO
A woman had a right pneumonectomy, complicated 5 years later by an anaerobic infection with a following "blowout" of the bronchial stump; an empyema developed. A muscle graft was used to close the bronchial stump. An Eloesser flap was created to allow drainage of the empyema. She was later admitted with respiratory distress. A ventilation lung scan was performed with Xe-133. This showed the results of a "double fistula," with passage of radioxenon into the right pleural space and then out of the body through the Eloesser flap.
