Background Imaging of colorectal cancer liver metastases (CRCLMs) has improved in recent years. Therefore, the role of current imaging techniques needs to be defined. Purpose To assess the diagnostic performance of contrast-enhanced ultrasound (CEUS), multidetector computed tomography (MDCT), magnetic resonance imaging (MRI), and fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT in the detection of CRCLMs. Material and Methods PubMed database was searched for articles published during 2000–2019. Inclusion criteria were as follows: diagnosis/suspicion of CRCLMs; CEUS, MDCT, MRI, or FDG PET/CT performed for the detection of CRCLMs; prospective study design; histopathologic examination, intraoperative findings and/or follow-up used as reference standard; and data for calculating sensitivity and specificity reported. Results Twelve prospective studies were assessed, including 536 patients with CRCLMs (n = 1335). On a per-lesion basis, the sensitivity of CEUS, MDCT, MRI, and FDG PET/CT was 86%, 84%, 89%, and 62%, respectively. MRI had the highest sensitivity on a per-lesion analysis. CEUS and MDCT had comparable sensitivities. On a per-patient basis, the sensitivity and specificity of CEUS, MDCT, MRI, and FDG PET/CT was 80% and 97%, 87% and 95%, 87% and 94%, and 96% and 97%, respectively. The per-patient sensitivities for MRI and MDCT were similar. The sensitivity for MRI was higher than that for CEUS, MDCT, and FDG PET/CT for lesions <10 mm and lesions at least 10 mm in size. Hepatospecific contrast agent did not improve diagnostic performances. Conclusion MRI is the preferred imaging modality for evaluating CRCLMs. Both MDCT and CEUS can be used as alternatives.
Multidetector computed tomography (MDCT) of the abdomen is currently the imaging examination of choice for the staging and follow-up of ovarian carcinoma (OC). Peritoneal metastases (PMs) represent the most common pathway for the metastatic spread of OC. MDCT scanners, due to several advantages—including increased volume coverage, reduced scanning time, acquisition of thin slices and creation of multiplanar reformations, and three-dimensional reconstructions—provide useful information regarding the early and accurate detection of PMs. Detailed mapping of peritoneal carcinomatosis is feasible, with improved detection of sub-centimeter peritoneal implants and thorough evaluation of curved peritoneal surfaces.
Gunshot injuries can be very threatening to the patient's life. A bullet in the neck area after a gunshot usually causes tissue damage and bleeding because of the presence of vital structures in this region. We present the case of a young man that arrived emergently to our hospital because of gunshot injury in the right neck area and the right shoulder. He was hemodynamically stable, with no laryngeal edema or hematoma. The cervical radiography showed a foreign body lying on the right side of the spine, in front of the third cervical vertebra. The CT scanning revealed a metallic foreign body, lying between the internal carotid artery and the external carotid artery, without causing bleeding in the surrounding tissues. A bullet was also found in the right shoulder area. A barium esophagography showed no contrast agent escape. An emergency operation was performed, under general anesthesia. The metallic bullet was found under an enlarged submandibular lymph node and was removed. The bullet removal caused vessel intraoperative bleeding, that was repaired satisfactory. No postoperative complications were noticed and patient was discharged home.
We present the case of a 59 year old male patient with pulsate tinnitus, referred as the first manifestation of a jugular parganglioma. The patient examined at the outpatient ENT Department of our hospital with a left lateral cervical swelling, difficulty in swallowing and pulsatile tinnitus. Tinnitus was the first reported symptom that appeared one month before. The patient had no medical history. The clinical examination showed an asymmetric swelling of the left tonsil, a left vocal cord paralysis, a retrotympanic mass otoscopically and conductive hearing loss in the left ear. The patient underwent a head-and-neck computed tomography that raised the suspicion of a paraganglioma. The magnetic resonance imaging and the magnetic angiography with the administration of a contrast agent set the diagnosis of a jugular paraganglioma. After the tumor embolization, the patient unerwent primary resection of the tumor. This is the first case of a patient with a jugular paraganglioma and pulsatile tinnitus as the first reported symptom.
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