Biomedical subjects

A Feydy

Publications and source records attributed to A Feydy.

25 records · Page 2Linked to original sources

PubMed1998

Longitudinal stress fractures of the tibia: comparative study of CT and MR imaging.

The aim of this study was to compare the performance of CT and MRI in the diagnosis of longitudinal stress fracture of the tibia (LSFT). A retrospective study of imaging findings was performed in 15 patients with LSFT. The CT and MR images were compared for detection of fracture line, callus, bone marrow edema, and soft tissues changes. The CT and MRI techniques allowed the detection of the fracture line in 82 and 73 % of cases, respectively. The callus was always visualized with CT or MRI. The MRI technique had a markedly higher sensitivity than CT in the detection of bone marrow edema (73 vs 18 %) and soft tissue lesions (87 vs 9 %). This may cause a misleading aggressive appearance on MRI. Computed tomography remains the best imaging modality for diagnosis of LSFT. However, MRI findings should be known to obviate the performance of CT or bone biopsy.

Adolescent↗

PubMed1997

Bilateral slipped capital femoral epiphysis occuring in an adult with acromegalic gigantism.

The etiology of slipped capital femoral epiphysis is still unknown. Traumatic, endocrine, toxic, and mechanical causes have all been hypothesized. It is well documented that the highest incidence occurs during the adolescent growth spurt, suggesting the role of an endocrine abnormality. We report a case that supports this hypothesis.

Acromegaly↗

PubMed1997

Brain and spinal cord MR imaging in a case of acute disseminated encephalomyelitis.

We describe a case of acute disseminated encephalomyelitis following varicella infection presenting as transverse myelitis. Magnetic resonance imaging revealed diffuse cord swelling and signal increase without gadolinium enhancement and several silent brain lesions, all of which completely resolved at follow-up.

Adult↗

PubMed1996

Acrylic vertebroplasty in symptomatic cervical vertebral haemangiomas: report of 2 cases.

We report two cases of acrylic vertebroplasty in symptomatic cervical vertebral haemangiomas. In both cases significant improvement of symptoms was rapid. One patient was able to return to work.

Adult↗

PubMed1996

MRI in a case of neurotrichinosis.

Neurological complications are rare in trichinosis. We report a case with marked hypereosinophilia in which MRI showed multiple small subacute cortical infarcts with Gd-DTPA enhancement.

Biopsy↗

PubMed1996

Chest high resolution CT in adults with primary humoral immunodeficiency.

The purpose of this study was to assess the findings on chest high resolution computed tomography (HRCT) in patients with primary humoral immunodeficiency. HRCT was prospectively and consecutively performed in 19 patients with primary humoral immunodeficiency, aged 15-64 years (mean 36), and in 15 healthy subjects. HRCT results were correlated with clinical and biological data. Bronchial lesions were observed in 11 patients (58%), consisting either of bronchial wall thickening in eight or bronchiectasis in eight; both were present in five patients. Lobar and/or segmental collapses were found in seven patients (37%), scars in eight patients (42%), interstitial lesions in six patients (32%), and lobular air-trapping in two patients (11%). Parenchymal collapses were correlated with the annual frequency of infections (p = 0.03) and with the IgA level (p = 0.01). Scars were correlated with the annual frequency of infections (p = 0.04). No correlation was found between bronchial wall thickening or bronchiectasis and the data analysed. In conclusion, HRCT is a useful method to demonstrate lung disease in primary humoral immunodeficiencies, with special emphasis on bronchial changes and interstitial lesions.

Adolescent↗

PubMed1995

[Imaging of osteosclerotic metastases].

Carcinomas of the prostate and breast are the most common sources of osteosclerotic metastases. The osteoblastic response is related to stromal bone formation and reactive bone formation. Purely osteosclerotic or mixed osteolytic-osteosclerotic lesions are encountered. Frequent differential diagnoses are enostoses and Paget's disease. The classical MRI pattern is a signal of low intensity on T1 and T2- weighted sequences, but some osteoblastic metastases have an inhomogenous signal. Evaluation of the response to treatment is difficult and requires confrontation with clinical and biological data.

Bone Neoplasms↗