Search PubMed⌕ Search

Biomedical subjects

E M Azouz

Publications and source records attributed to E M Azouz.

95 records · Page 6Linked to original sources
PubMedDate not supplied

MRI of the abnormal pediatric hand and wrist with plain film correlation.

Based on a pool of 24 selected cases of nontraumatic pathology of the hand and wrist in patients under the age of 18 years, collected from three pediatric hospitals, the authors have illustrated a number of congenital, inflammatory, and infectious conditions as well as tumors of bones and soft tissues, utilizing MRI with plain film correlation. Due to different MR signal characteristics, the etiology of macrodactyly may be recognized, e.g., vascular and/or fatty versus neurofibromatosis, etc. In septic arthritis, MR has shown abnormal marrow signal in adjacent bones denoting osteomyelitis, often unexpected from the plain film appearance. Tenosynovitis has a specific MR appearance: Fluid in the tendon sheath gives high signal on T2-weighted imaging. In arthritis--because of the associated hyperemia--there is definite synovial enhancement easily visible immediately after Gd-chelate injection. Gd also helps identify viable tissues postinfection as well as viable tumor tissue (versus scar or necrotic tissue) in tumors. Plain radiography is the imaging method of choice for diagnosis and differential diagnosis of most cases of bone cysts, tumors, and tumor-like conditions, e.g., simple and aneurysmal bone cysts, enchondroma, and osteoid osteoma. In the study of masses, MRI gives excellent detail regarding tumor staging and the extent of soft tissue tumors as well as the soft tissue component of bone tumors. In the hand and wrist, aneurysmal bone cysts are usually confined within a metacarpal or carpal bone, showing high signal intensity on T2-weighted imaging, often with fluid/fluid levels. If ganglion cysts are excluded, the most commonly encountered soft tissue masses are the vascular malformations. MR angiography can demonstrate the vascularity of the lesion. Some benign soft tissue lesions have a characteristic MR appearance, e.g., ganglion cysts, lipomata, and accessory muscles.

Adolescent↗
PubMedDate not supplied

Giant inflammatory polyposis causing partial obstruction and pain in "healed" ulcerative colitis in an adolescent.

A 16-year-old boy with chronic ulcerative colitis developed unexplained increasingly intractable abdominal pain and rectal bleeding over several months during a period when acute colitic attacks were quiescent. No abdominal mass was palpable. The cause of symptoms was subtotal colonic obstruction due to the development of massive or giant inflammatory (pseudo) polyposis, which had caused nearly complete obliteration of the lumen of the transverse colon. The radiological and histopathological findings are presented; this case confirms the conclusion drawn in a recent retrospective surgical pathology report that giant inflammatory polyposis may produce distinct symptoms, especially pain, independent of the existence of relatively quiescent underlying inflammatory bowel disease. This unusual complication of inflammatory bowel disease deserves greater clinical awareness.

Adolescent↗
PubMedDate not supplied

[Intrathoracic mass in Ewing's sarcoma of the ribs. Apropos of 5 cases].

5 cases of Ewing's tumor of the ribs are reviewed. On the initial chest X-ray, they had in common an enormous intrathoracic mass. The bone lesion which was subtle, was hardly seen or missed and the patients were referred to us for investigation of a mediastinal mass, a lung tumor or a pleural effusion. The possibility of a rib tumor was not mentioned. Recent methods of investigation of a thoracic mass include nuclear medicine, ultrasound and computed tomography but the conventional plain chest radiograph is the first and most important test in these cases.

Adolescent↗