ABSTRACT
We reviewed the radiological documents and protocols of 196 cases of bile duct tumors examined over a period of 12 years: 20 of them (10.2%) presented with a polypoid endoluminal growth. The aim of this study was to provide a better knowledge about the radiological features of this less frequent kind of tumor. In these 20 cases, the correct diagnosis of bile duct lesion was provided in 100% by E.R.C.P., P.T.C., U.S. as well as C.T., and in 42% by arteriography. The correct diagnosis of tumor was made by E.R.C.P. in 86%, by P.T.C. in 88%, by U.S. in 61%, by C.T. in 63%, and by arteriography in 25%. A correct diagnosis of tumor could be reached in all cases by combination of several examination techniques. The anatomopathological diagnosis was: bile duct adenocarcinoma (7 cases), adenocarcinoma of the ampulla of Vater (4), villous adenoma of Vater's ampulla (2), cystadenoma (1), cystadenocarcinoma (1), hepatocellular carcinoma (1), apudoma (1), and metastases (3).
Subject(s)
Adenocarcinoma/diagnosis , Bile Duct Neoplasms/diagnosis , Cholangiocarcinoma/diagnosis , Diagnostic Imaging , Polyps/diagnosis , Adult , Aged , Aged, 80 and over , Cholangiography/methods , Cholangiopancreatography, Endoscopic Retrograde , Female , Humans , Male , Middle Aged , Sensitivity and Specificity , Tomography, X-Ray Computed , UltrasonographySubject(s)
Diagnostic Imaging , Leiomyosarcoma/diagnosis , Stomach Neoplasms/diagnosis , Adult , Diagnosis, Differential , Humans , MaleABSTRACT
Currently CT and MR are the most competitive modalities in the study of laryngeal cancer. Both radiological techniques are used to define the deeper extent of the disease and to look for disease in the blind mucosal areas. They allow evaluation of the exact extent of the tumor and this information is indispensable when one has to decide if a patient is candidate for speech conservation surgery, if a patient can be treated by radiation alone etc. MR is preferred in cooperative patients because it allows multiplanar imaging and provides the best soft tissue definition, both resulting in a more exact staging. Moreover cartilage involvement is best evaluated on MR images. CT is used when the patient has major problems with secretions, is not cooperative, has respiratory problems and when MR is not available. MR and CT are also helpful in the detection of recurrent tumor in postoperative patients but are far less reliable in the distinction between "residual or recurrent tumor" and "fibrosis or edema" in irradiated patients.
