ABSTRACT
Percutaneous thin needle biopsy, a widely used method for diagnosis of lung conditions, is generally safe and effective. A near-fatal air embolism is reported that occurred during percutaneous thin needle aspiration biopsy of the lung. Successful treatment was accomplished by hyperbaric oxygen therapy. Physicians should be aware of this possible complication and identify the location of the nearest chamber for possible transfer.
Subject(s)
Biopsy, Needle/adverse effects , Embolism, Air/etiology , Intracranial Embolism and Thrombosis/etiology , Embolism, Air/therapy , Female , Humans , Hyperbaric Oxygenation , Intracranial Embolism and Thrombosis/radiotherapy , Lung/pathology , Lung Diseases/pathology , Middle Aged , Tomography, X-Ray ComputedABSTRACT
Hepatic CT scans in 61 consecutive patients with proved liver metastasis performed both before and after administration of contrast medium were subjected to blind analysis by two observers. In 10 patients (16%) hepatic lesions were better defined before CE and focal hepatic lesions were diagnostically visible only before CE in 8 patients (13%). Lesions were better defined following CE in 16 patients (26%) but in only 2 cases (3%) were lesions diagnostically visible only after CE. The majority of lesions [35 (58%)] were equally well visualized before and after CE.
Subject(s)
Liver Neoplasms/diagnostic imaging , Radiographic Image Enhancement , Tomography, X-Ray Computed , Contrast Media , Evaluation Studies as Topic , Humans , Liver Neoplasms/diagnosis , Neoplasm Metastasis , Radionuclide Imaging , UltrasonographyABSTRACT
We report a case of parathyroid adenoma correctly localized prior to operation by computed tomography (CT) and thyroid scanning. The use of CT and other noninvasive diagnostic modalities to aid the surgeon prior to initial operation for parathyroid adenoma is discussed.
Subject(s)
Adenoma/diagnosis , Parathyroid Neoplasms/diagnosis , Tomography, X-Ray Computed , Adenoma/diagnostic imaging , Adult , Humans , Male , Parathyroid Neoplasms/diagnostic imaging , Radionuclide ImagingABSTRACT
A retrospective study was made of 29 consecutive patients who were evaluated for suspected abdominal abscess by at least two of three imaging modalities: gallium-67 scanning, ultrasonography, and computed tomography. No statistically significant difference in accuracy of the findings could be demonstrated. Consideration of the advantages and disadvantages of each imaging modality will often indicate which to use in an individual case. Findings from the three imaging techniques sometimes provided complementary rather than identical information.
Subject(s)
Abdomen , Abscess/diagnosis , Gallium Radioisotopes , Tomography, X-Ray Computed , Ultrasonography , Abscess/diagnostic imaging , Evaluation Studies as Topic , Humans , Radiography, Abdominal , Radionuclide ImagingABSTRACT
Fifteen patients with a suspected abdominal abscess were examined by both gallium-67 and computed tomographic scanning. The Ga-67 scan was a useful screening examination, correctly identifying all eight cases of infection, whereas the CT scan missed one case of a pericecal phlegmon. Misdiagnosis of infection by Ga-67 scan occurred in 2/8 cases without infection but the CT scan correctly identified all noninfected patients. While this series is too small to decide whether there is significant difference in the ability of the two procedures to suggest the correct diagnosis, it is felt that Ga-67 and subsequent CT scans may be complementary in that a Ga-67 scan can initially locate the abnormality and thus direct the CT scan, which can confirm the diagnosis or avoid a misinterpretation of the Ga-67 scan. Computed tomography also provides more anatomical detail, better location of the lesion, and demonsrates lesions noninfectious in nature.
Subject(s)
Abdomen , Abscess/diagnosis , Gallium Radioisotopes , Tomography, X-Ray Computed , Abdomen/diagnostic imaging , Abscess/diagnostic imaging , Female , Hematoma/diagnostic imaging , Humans , Liver Abscess/diagnostic imaging , Liver Neoplasms/diagnostic imaging , Male , Pancreatic Diseases/diagnostic imaging , Plasmacytoma/diagnostic imaging , Radiography, Abdominal , Radionuclide Imaging , Splenic Diseases/diagnostic imagingABSTRACT
Ten patients received kidneys from living, related donors, the transplants having multiple renal arteries; a retrospective analysis of the postoperative Hippuran renograms is presented. All seven kidneys that had the large artery reopened before anastomosis of the smaller, developed scintigram findings suggestive of acute tubular necrosis (ATN) in the region with the more prolonged ischemia. Three similar kidneys with simultaneous recanalization of both renal arteries had normal Hippuran scintiphotos. Electron photomicrographs from upper- and lower-pole biopsies--in one case undergoing sequential revascularization--confirm the development of ischemic changes consistent with ATN in the half of the kidney developing scan findings of ATN.
