RESUMO
Leiomyomatosis peritonealis disseminata is a rare benign disorder in females characterized by multiple smooth muscle tumor nodules throughout the peritoneal cavity. All of the reported cases have been in menstrual-age women; some of whom have been pregnant or taking oral contraceptives. We report a postmenopausal woman who had symptoms related to bowel-wall involvement in two episodes 12 years apart.
Assuntos
Leiomioma/patologia , Neoplasias Peritoneais/patologia , Feminino , Humanos , Leiomioma/diagnóstico por imagem , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Neoplasias Peritoneais/diagnóstico por imagem , Cintilografia , Pertecnetato Tc 99m de Sódio , Tomografia Computadorizada por Raios XRESUMO
Computed tomography of the chest or abdomen may reveal vertebral abnormalities. Images in multiple projections of dry and fresh specimens of the spine demonstrate that osteophytes, end-plate irregularities, and marked obliquity fail to mimic true osteoblastic vertebral lesions. Disk calcification may simulate a metastatic deposit if the section includes both disk and vertebral body. Abdominal or chest "window" settings produce an apparent increase in bone density. Analysis of the bony spine from abdominal and chest images requires gray scale settings different from those used for the study of visceral organs.
Assuntos
Radiografia Abdominal , Radiografia Torácica , Doenças da Coluna Vertebral/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Vértebras Cervicais/diagnóstico por imagem , Humanos , Vértebras Lombares/diagnóstico por imagem , Vértebras Torácicas/diagnóstico por imagemRESUMO
31 patients suspect for acute pulmonary emboli were studied by measuring arterial PO2 (room air) and right to left shunt (100% oxygen breathing) to determine if measurement of the right to left shunt aided in the diagnosis of pulmonary embolism. Ventilation/perfusion or serial perfusion lung scans were performed on each patient. All patients exhibited arterial hypoxemia (PaO2 less than or equal to 80) and 27 had a shunt greater than 7%. The shunt was 15.1 +/- 3.6% in 9 patients with lung scans highly suggestive of emboli. 20 patients with lung scans of low probability for emboli had significantly less shunting averaging 10.9 +/- 3.7%. 5 patients of the latter group had shunts averaging 15.2 +/- 3.8% attributable to occult pneumonia not initially apparent. An increased right to left shunt fraction is not diagnostic of pulmonary emboli, but a normal one makes the diagnosis unlikely.