Biomedical subjects

B Youssef

Publications and source records attributed to B Youssef.

5 recordsLinked to original sources

PubMed1999

Osteomyelitis: a review of currently used imaging techniques.

Conventional radiographs remain the initial imaging modality involved in the diagnosis of osteomyelitis. Bone scintigraphy and its specific agents did not only eliminate the problems of inherent low sensitivity of conventional radiographs, but also increased the specificity to higher degrees. Spiral CT, on the other hand, has solved several diagnostic problems, such as osteomyelitis of the sterno-clavicular junction and hidden areas in the pelvic bones. Magnetic resonance imaging with its multiplanar capability, greater anatomic details and excellent soft tissue bone marrow contrast resolution has a significant role in surgical planning and limb preservation. Ultrasound and US-guided aspiration has recently been involved in the diagnosis and management of osteomyelitis with several advantages particularly in children. Our goal in this review is to outline the ability of various imaging techniques by comparing their strengths and weaknesses in the diagnosis of osteomyelitis. Finally, we suggest various imaging algorithms for specific clinical scenarios. Spondylitis and septic arthritis are not discussed in this review.

Bone and Bones↗

PubMed1999

[Pleomorphic adenoma of the nasal septum: a case report].

We report on a case of pleomorphic adenoma involving the nasal septum, in a caucasian woman aged 23, who presented with nasal obstruction and epistaxis. A swelling of the anterior part of the nasal septum was observed and a biopsy demonstrated the existence of a pleomorphic adenoma. CT scan and MRI investigation showed the lesion to be limited, and removal was therefore possible using an endonasal approach. No recurrence has been found after 22 months.

Adenoma, Pleomorphic↗

PubMed1998

[Pyolaryngocele: a rare cause of respiratory distress].

Pyolaryngocele is an unusual diagnosis, occurring as a complication of a laryngocele, witch may be discovered because of an episode of acute respiratory distress needing urgent medical care. This is a case report with confirmation of the diagnosis by CT scan, which needed surgical treatment.

Adult↗

PubMed1998

[Repeat surgery for thyroid nodules (excluding cancer and hyperthyroidism)].

Second procedures for recurrent thyroid disease are known to carry a high risk of iatrogenic damage, particularly to the inferior laryngeal nerves and parathyroid glands. This risk has been clearly evaluated for the primary procedure, but is less clearly for second procedures. A series of 117 patients with solitary or multiple cold thyroid nodules were evaluated (excluding those patients re-operated for recurrent thyroid carcinoma or goitre associated with hyperthyroidism) to determine the operative risks. The level of transient and permanent recurrent laryngeal nerve palsy was 2.56% and 1.7% respectively. The level of transient and permanent hypocalcaemia was 12.9% and 4.62% respectively. The frequency of re-operation for recurrent disease involving the pyramidal lobe following total thyroidectomy (6 cases) highlights the importance of removing it during the primary procedure. The number of cases of cancer discovered at re-operation was 4.3% (5 cases out of 117).

Adult↗

PubMedDate not supplied

Radiological manifestations of liver and gastrointestinal parasitic infections.

There is a wide variation in the prevalence of parasitic diseases in different countries, particularly in the Tropics. The clinical status of affected patients varies from normal to severe ill health. Radiology has acquired a major role in the diagnosis and, in some instances, the management of a significant variety of parasitic infections. Plain films, ultrasound, computed tomography and magnetic resonance imaging, together with the help of clinical and laboratory tests, can reach a diagnosis with a high percentage of accuracy.

Diagnostic Imaging↗