Biomedical subjects

R Mazzoni

Publications and source records attributed to R Mazzoni.

22 records · Page 2Linked to original sources

PubMed1981

Xeroradiography of soft tissue tumors.

The main features of 300 consecutive cases of soft tissue tumors at xeroradiography were submitted to retrospective evaluation. The parameters assessed were: visibility, density, shape, size, outline and relationships of the lesions. The distribution of each parameter between benign and malignant tumors was evaluated by means of statistical analysis. The xerographic signs of malignancy of soft tissue tumors are reviewed and the typical features of some particular tumors are outlined.

Diagnosis, Differential↗

PubMed1980

Lipoblastic tumours of somatic soft tissues: a xerographic evaluation of 67 cases.

The role of xeroradiography for the diagnosis and the clinical evaluation of lipoblastic tumours of somatic soft tissues was investigated in 67 patients. Xeroradiography improved the visibility of soft tissues over film radiography in 20 out of the 23 cases in which both examinations were performed. The xeroradiographic characters of a lipoblastic tumour depend on its nature, thus irregular and infiltrative masses are usually liposarcomas, while regular and rounded nodes are usually pure or mixed lipomas. Moreover, pure lipomas are always radiolucent and liposarcomas are always radiopaque. Xeroradiography is regarded as a promising first technique in the diagnosis of lipoblastic tumours, before more complex investigations, like computed tomography (CT) scanning or arteriography, are undertaken.

Evaluation Studies as Topic↗

PubMedDate not supplied

[Direct radiographic magnification: a contribution to the study of bone pathology].

Direct magnification radiography was evaluated on 46 patients with skeletal disorders. The equipment employed was based on a microfocus tube and it gave a magnification factor of 3 X. This technique was judged to be more useful than standard X-ray films in 35/46 cases (76%). The size of the part examined played an important role in the effectiveness of this technique, since the most useful and impressive results were obtained in thin anatomic sites, like the extremities. The highest value of direct magnification radiography was found to be in uraemic osteodistrophy, in particular for the study of the hands. This technique appeared to be very useful also in bone tumours, since it allowed a detailed evaluation of the trabecular structure and of the cortical outline.

Adolescent↗

PubMedDate not supplied

[Vascular tumors of somatic soft tissues: a xerographic evaluation].

The xeroradiographic features of 34 soft tissue vascular tumors, either benign and malignant, were retrospectively evaluated and analyzed. The incidence of the main semeiologic landmarks in benign and malignant lesions was submitted to statistical evaluation. Benign vascular tumors (hemangiomas, lymphangiomas and mixed forms) often appear as irregular nodes with granular or worm-like structure due to the dilatation of small vessels. Lymphangiomas may contain also rounded or ovoid opacities due to the presence of lymphatic cysts. Vascular malignancies (angiosarcomas) are always radiopaque masses, with irregular borders and infiltration of the surrounding structures. Xeroradiography is proposed as a first-line technique for the diagnosis of soft tissue vascular tumors, before more complex and expensive procedures, like CT or arteriography, are undertaken.

Adult↗