CT-diagnosis of lipomatous tumors of the soft tissues.

Twenty-six patients with soft tissue lipoma and liposarcoma were evaluated by CT; 17 lipomas and 9 liposarcomas. All the lipomas except for one subcutaneous lesion were well-delineated. All but one partly calcified lipoma had homogeneous density with attenuation values in the range of the patients' own subcutaneous fat (-65 to -125 HU).

Computed tomography of intramuscular myxoma.

Computed tomography (CT) was performed in seven patients with intramuscular myxoma. All lesions were well demarcated, of homogeneous appearance and attenuation values ranging from 10 to 60 (HU). The tumor size, as estimated at CT, correlated well with the size of the surgical specimen, which is in contrast to the findings in some high grade malignant sarcomas.

The tarsal tunnel syndrome in children.

There are few reports on the tarsal tunnel syndrome in children. This paper concerns 10 such children. In adults the syndrome is equally distributed among the sexes but all these children were girls.

Comparison of computed tomography and angiography in the evaluation of soft tissue tumors of the extremities.

CT and angiography were performed in 21 patients with soft tissue tumors of the extremities (18 malignant and 3 benign) and the results were compared with the surgical and histopathologic findings. The tumor size was correctly evaluated at CT in 15 of 21 cases and at angiography in 17 of 21 cases. The main reason for overestimation of longitudinal tumor extent seems to be edema surrounding the poles of high grade malignant neoplasms.

Cytodiagnosis of soft tissue tumors and tumor-like conditions by means of fine needle aspiration biopsy.

In the evaluation of soft tissue tumors primary sarcomas must be differentiated from other malignancies, such as cancer metastases, malignant lymphomas, as well as benign tumors and tumor-like conditions. As far as possible this should be done without open biopsy to avoid local spread. Fine needle aspiration biopsy as opposed to thick needle biopsy utilizes smaller needle diameters up to 0.

Excisional biopsy for bone tumours.

Compartmental muscular resections without open biopsy is a common procedure for soft tissue tumours suspected of malignancy. In bone tumours, where the diagnosis is supposed to be sarcoma, an excisional biopsy is seldom possible without severe recontructive problems and it may be unnecessarily mutilating should the tumour be benign. For the fibula, the clavicula, metatarsal and metacarpal bones, the distal third of ulna and the proximal third of radius, however, excisional biopsy as the primary procedure should be taken into account.

Pseudochondromalacia patellae.

A condition causing knee pain with retropatellar crepitus similar to chondromalacia patellae is described. The symptoms seem to be due not to chondromalacia of the patella, but to a local synovial thickening proximal to the articular surface of the medial femoral condyle. Thirteen patients, aged 10 to 21 years, were operated upon because of this condition, three of them bilaterally.

Patella cubiti. Report of an operated case.

A case of incapacitating patella cubiti, probably of congenital origin, in a 45-year-old farm labourer is described. The fragment was extirpated, the pain disappeared and the patient returned to work.