Value of CT scanning in the diagnosis of early cervical carcinoma / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To investigate the value of CT scanning in preoperative diagnosis of early cervical carcinoma.</p><p><b>METHODS</b>Abdominal and pelvic CT scans (MPR pictures for 50 patients) in 102 cervical carcinoma patients proven by biopsy pathology were retrospectively analyzed and compared with surgical pathologic findings. The pathological stages included > or = Ia in 39 patients, Ib 1 in 35, Ib 2 in 21, IIa in 6, IIb in 1. The tumor detection ability, thickness of cervical tumor invasion, T stage and lymph node stage showed by CT scan were evaluated.</p><p><b>RESULTS</b>CT was not able to detect < or = Ia cervical carcinoma, however, CT was able to detect tumors in 71.4% of > or = Ib 1 stage (45/63) and 71.4% > or = Ib 2 (20/28), it also showed the depth of tumor invasion in 39.7% > or = Ib 1 (25/63). The overall accuracy of CT staging for tumor was 69.6% and the rate of metastatic lymph node detection 63.6% (7/11). With additional MPR pictures of spiral CT, the detection ability, vaginal involvement and objective shape of cervical tumor was improved. The cervical carcinoma in CT scan was found to be as homogeneous in 54.9% of patients (56/102), hypodense or heterogeneous in 42.2% (43/102), lower density nodual in 41.9% (18/43); occasionally as heterogeneous or hyperdensity noduals or irregular border of the cervix. The features of metastatic lymph nodes in CT scan were rounded or spheroid shape of soft tissue noduals with heterogeneous density caused by central necrosis and rim enhancement.</p><p><b>CONCLUSION</b>CT scanning may be valuable in detection of > or = Ib 1 rather than < Ib 1 stage early cervical carcinoma. The additional MPR pictures of spiral CT is not only helpful in detecting tumor but also in determining the extension of cervical carcinoma.</p>

Peritoneal tuberculosis mimicking advanced ovarian carcinoma: distinction based on CT findings / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To evaluate the computed tomography (CT) findings of peritoneal tuberculosis mimicking advanced ovarian carcinoma for better understanding of the CT manifestations and accurate preoperative diagnosis.</p><p><b>METHODS</b>CT findings of 18 cases with tuberculous peritonitis clinically simulating advanced ovarian cancer but pathologically proved otherwise were retrospectively reviewed.</p><p><b>RESULTS</b>1. Masses with solid and cystic structures were found in 6 cases and tumor-like flakes were found in 7 cases in the adnexal regions. The solid components and tumor-like flakes were moderately to markedly enhanced with dynamic CT scanning. 2. The peritoneum was smooth and slightly thickened in 10 cases; irregular thickening was seen in 4 cases, and patches of calcification in 3 cases. Thickened peritoneum with pronounced enhancement was noted in 7 cases. 3. Omentum with flake-like thickening was noted in 11 cases, coarse reticulate thickening in 2 cases and omental cakes in 2 cases. The margin of the thickened omentum with enhancement was ill-defined. 4. Nodular and stripe-like thickening of the mesentery was noted in 16 cases. 5. Ascites was present in all of the 18 cases, being encapsulated in 14 of them. 6. Lymphadenopathy was seen in 9 cases, all at located in the diaphragmatic levels. Enhancement of the lymph nodes was marked in 8 of the 8 patients examined. They appeared as ring-like (> 1 cm in diameter) or uniform (<or= 1 cm in diameter) enhancement.</p><p><b>CONCLUSION</b>CT examination combined with clinical manifestations helps differentiate tuberculous peritonitis from advanced ovarian cancer.</p>

The significance of multi-slice helical CT multiplanar reconstruction in the diagnoses of laryngeal carcinoma / 中华放射学杂志

Objective To evaluate the significance of multi-slice helical CT with multiplanar reconstruction in laryngeal carcinoma.Methods Thirty-five patients with laryngeal carcinoma were studied by helical CT,MPR were subsequently done.The lesion extent of the axial image findings,MPR findings and the combined image findings were compared with the pathological results respectively.The data were statistically analyzed.Results In the evaluation of the anterior commissure,the axial image findings,MPR findings and the combined image findings were 82.9%,68.6% and 91.4% in accuracy respectively,the results were statistically different(P0.05).The combined images were superior to the axial images and the MPR images in sensitivity,specificity and accuracy of the lesion extent.Conclusion The axial images could show the shape,size,extension of the tumor and the lymphadenopathy,MPR images displayed the shape,size and extension roundly and directly,they were the supplement for the axial images.Axial images combined with MPR could improve the accuracy in the diagnoses of laryngeal carcinoma.