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Biomedical subjects

E M Azouz

Publications and source records attributed to E M Azouz.

At least 73 records · Page 4Linked to original sources
PubMed1988

Solitary lucent epiphyseal lesions in children.

We evaluated retrospectively the varying radiographic appearances of 15 solitary lucent epiphyseal lesions occurring in children. Imaging modalities used included plain films, conventional tomography, nuclear scintigraphy, and computed tomography. Forty percent of the lesions (6) were due to osteomyelitis. The remaining lesions included tuberculosis (1), foreign body granuloma (1), chondroblastoma (2), chondromyxoid fibroma (1), enchondroma (1), osteoid osteoma (2), and eosinophilic granuloma (1). Although the radiographic appearances of such lesions may be particularly characteristic, pathologic correlation is frequently necessary. The high incidence of osteomyelitis in our cases emphasizes its importance as a cause for a lucent epiphyseal lesion.

Adolescent↗
PubMed1988

Primary bone tumours of the hand. Report of 21 cases.

Twenty-one primary bone tumours of the hand in children from 8 paediatric hospitals are reported. Osteochondromas and enchondromas were not included. Our material consisted of 16 patients with common tumours (3 Ewing's sarcoma, 5 aneurysmal bone cyst, 6 osteoid osteoma and 2 epidermoid cyst) and 5 patients with uncommon tumours (osteoma, simple bone cyst, haemangiopericytoma, capillary angiomatous tumour and benign ossifying fibroma or osteoblastoma). The X-ray diagnosis of the common tumours should have high concordance with histology, whereas that of uncommon tumours is much more difficult and uncertain. The characteristic features of Ewing's sarcoma are stressed as all our children with this tumour had a delayed diagnosis and a fatal outcome. Differential diagnosis with other short tubular bone lesions of the hand - specifically osteomyelitis - is discussed and the possibilities of microscopic diagnosis are stressed.

Adolescent↗
PubMed1987

Radiologic findings in the Proteus syndrome.

The radiological findings in two patients with the Proteus syndrome are described. Features in our two cases not previously mentioned or stressed include vertebral dysplasia and enlargement (megaspondylodysplasia), bilateral genu valgum, recurrent after surgery and intraabdominal and mesenteric lipomatosis. Emergency laparotomy was performed on the first patient who had a twisted necrotic portion of mesenteric fat. Macrodactyly, skeletal muscle atrophy and subcutaneous fat accumulation in the abdominal wall were present in both. In addition the second patient was mentally retarded and had frontal bony prominence of skull. Computed tomography was used for the specific diagnosis of the lipomatous tissues in both patients.

Bone and Bones↗
PubMed1986

Computed tomography in interstitial lung disease.

The number and scope of published articles dealing with computed tomography of interstitial lung disease are limited. We present seven cases in which computed tomography detected the presence or extent of interstitial lung disease better than conventional radiography: two patients with histiocytosis X, one with bronchopulmonary dysplasia, one with bleomycin lung toxicity, and three with radiation-induced lung injury. The computed tomography appearance of histiocytosis X and bronchopulmonary dysplasia have not been previously described. Transverse computed tomography images provide information regarding stage of activity and nature of interstitial lung processes not available with standard imaging techniques. We advocate the use of computed tomography in the initial investigation and follow-up of patients with histiocytosis X. Post-radiation pneumonitis and fibrosis can be detected earlier with computed tomography as well.

Adolescent↗
PubMed1986

Subperiosteal osteoid osteoma of the talus.

We report three patients with subperiosteal osteoid osteoma of the talus. All showed an erosion of the dorsal surface of the talus with medullary bone sclerosis. Adjacent paraosseous soft tissue calcification was seen in two lesions. Computed tomography demonstrated the nidus of the osteoid osteoma in two cases.

Adolescent↗
PubMed1985

The variable manifestations of dysplasia epiphysealis hemimelica.

Dysplasia epiphysealis hemimelica (DEH) is an osteocartilaginous overgrowth involving one or multiple epiphyses or ossification centers, usually in a lower extremity on one side of the body. Characteristically the involvement is hemimelic i.e. either the medial or lateral part of the ossification center is involved. We have studied 24 patients with DEH and are adding 15 new cases to the literature. Because of the variable manifestations of the dysplasia and its different degrees of involvement in the affected children, we have subdivided it into localized, classical and generalized forms. In the generalized form, there is involvement of a whole lower extremity from the pelvis to the foot, and some of these patients show megaepiphyses with enlargement of a whole epiphyseal center, not only its medial or lateral part. We have also described and illustrated other special features of the dysplasia especially the advanced bone age and the metaphyseal and growth plate involvement.

Child↗
PubMed1984

Rebound thymic hyperplasia in a child with cancer.

A case of biopsy-proven thymic hyperplasia is described in a child with group I paratesticular rhabdosarcoma while on chemotherapy. Other cases of children with cancer reported with this phenomenon are reviewed. Tissue diagnosis is important to differentiate metastatic tumor and to rule out second malignancies in these patients. The initial evaluations are facilitated by CT scanning of the chest and upper extremity venography.

Adolescent↗
PubMed1984

Aortic anomalies in an adolescent with the Williams' elfin facies syndrome.

An adolescent with classical Williams' syndrome who presented with hypertensive encephalopathy is described. He had the unusual combination of supravalvular aortic stenosis, long segment coarctation of the aorta, aortic hypoplasia and a high bifurcation of the abdominal aorta. Surgical resection of the coarctation was required; however, the patient has remained moderately hypertensive. The aortic anomalies in this syndrome are reviewed and their frequency and importance examined.

Adolescent↗
PubMed1984

Fibromatosis of bone in children.

Radiographs, computed tomograms, and radionuclide bone scans were obtained preoperatively in three children with fibromatosis involving the bones and soft tissues of the extremities. Two of the children had identical scar-like bone lesions of the proximal tibia, which, to the authors' knowledge, have not been reported before in this disease. The lesions recurred in two children.

Adolescent↗
PubMed1984

Computed tomography of synovial sarcoma of the foot.

We report two patients with synovial sarcoma of the foot. Both presented with a soft-tissue mass that exhibited calcification. Although the radiologic findings are non-specific, the presence of foci of calcification within the soft-tissue mass is suggestive of synovial sarcoma. Computed tomography shows the extent of the mass, soft-tissue calcification and bone destruction thus helping in earlier detection and more accurate staging.

Calcinosis↗
PubMed1984

Upper extremity involvement in Trevor disease.

We report a twenty-nine-month-old girl with Trevor disease (dysplasia epiphysealis hemimelica) involving the left humeral head and ipsilateral lower extremity. This is a disorder of growth of an epiphysis or ossification center and involvement of an upper limb is extremely rare. Advanced bone age is usually encountered in the affected extremity.

Arm↗
PubMed1984

Longitudinal CT of the forearm in children.

With proper positioning, direct longitudinal computed tomography of the forearm has been tried in five children. Combined with plain radiographs and transverse cuts, it allows a three-dimensional evaluation of bone and soft-tissue lesions. Being in the appropriate plane, it is also of great help in the study of the growth plate of the distal radius.

Adolescent↗