Clinical features and CT appearances of primary adenosquamous carcinoma of the liver / 实用放射学杂志

Objective To investigate the clinical features and CT appearances of primary adenosquamous carcinoma (ASC)of the liver and to improve the understanding of this disease for the sake of misdiagnosis.Methods The clinical features and CT appearances in 7 patients proved by operation and pathology were reviewed,retrospectively.Results All of the patients had dull pain in upper abdo-men,fever,chills and a long history of cholangitis and biliary calculi.In addition,all patients had not the history of hepatitis B and liver cirrhosis.And the serum AFP level was normal.The single lesion was found in every patient including 4 lesions in the left lobe of liver and the other 3 in the right lobe.Plain CT showed all masses with hypodensity,heterogeneity and unclear edge in liver,and multiple irregular and more hypodense areas in lesions were found.Slight heterogeneous honeycomb-like enhancement in the arterial phase was showed.In the venous phase,persistent honeycomb-like enhancement with uneven separations,nodular bulge and hypo-dense necrotic area was found.In the delayed phase,further honeycomb-like enhancement with hypodense necrotic area and obvious-ly enhanced nodular bulge was showed.The bile ducts in the liver and around the mass were dilated and had pneumatosis in company with lithiasis in choledochus and intrahepatic bile duct in 5 patients.Conclusion Primary hepatic ASC has certain clinical character-istics in older patients.The CT characteristic features included:honeycomb-like lesions with persistent,heterogeneous,delayed en-hancement and heterogeneous separation,uneven inner edge and enhanced nodular bulge.

MRI diagnosis of the complications of polyamide hydrogel injection for augmentation mammoplasty / 中华放射学杂志

Objective To analyze MRI findings and its clinical significance in complications of polyamide hydrogel injection for augmentation mammoplasty. Methods The complication findings of MR imaging in 20 cases with polyamide hydrogel injection for augmentation mammoplasty were retrospectively reviewed and analyzed. Results In 20 patients, 26 breasts suffered from complications, including infection (n=5) with pieces of long T_1and long T_2 signals, aseptic inflammation (n=2) with pieces of slight long T_1and moderate T_2 signals, hard nodule (n=10) with long T_1 and long T_2 signals, and rupture (n=5) with pieces and nodes of long T_1 and long T_2 signals on MR images. Conclusion MRI has the great diagnostic value in the detection of complications after polyamide hydrogel injection for augmentation mammoplasty, and it should be taken as the first diagnostic choice.

Imaging diagnosis of the acute Achilles tendon rupture / 中华放射学杂志

Objective To evaluate the diagnostic value of Achilles tendon rupture by using X-ray plain films and MR images. Methods The plain films and MRI findings in 21 patients with operation proved acute Achilles tendon rupture were analyzed, and every manifestation on MR and operation were compared.Results The Achilles tendon rupture was diagnosed on MRI in all 21 cases. Complete rupture of Achilles tendon was showed in 7 and partial rupture in 14. MRI appearance of the rupture represented as thickening of Achilles tendon, hyperintensity in the tendon, and completely or partly discontinuance of the fibrous bundle. X-ray showed Achilles tendon rupture in 5, suspicious rupture in 12, and normal in 4. Operation showed Achilles tendon complete rupture in 9 and partial rupture in 12.Conclusion MRI can accurately show the degree and location of acute Achilles tendon rupture, which is very helpful for treatment. X-ray is the adminicular method in detecting Achilles tendon rupture and the diagnosis should be depended on MRI to confirm the the acute Achilles tendon rupture.