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Biomedical subjects

B B Zobel

Publications and source records attributed to B B Zobel.

9 recordsLinked to original sources

Surgical complications after resection of adrenal carcinoma.

A 76-year-old woman with a history of dyspnoea, weight loss and abdominal pain, was admitted to our Hospital. Sonographic and tomographic examinations showed the presence of a large adrenal gland tumor and the promptly performed adrenalectomy and splenectomy proved that the lesion was an adrenal gland carcinoma infiltrating the spleen. One month after surgical treatment, the patient's general condition dramatically worsened due to development of perirenal abscess and renal infarction; finally, the patient died. In accordance with literature, we decided to only perform adrenalectomy and splenectomy that are the treatment of choice in these cases. In fact, complications are unforeseeable and avoiding the resection of the kidney surely offered the patient a better life quality.

Adrenal Cortex Neoplasms↗

MR imaging of degenerative disorders of brainstem and cerebellum.

In pathologies such as progressive ataxias, clinical criteria are often not enough to provide the correct diagnosis. Therefore, we studied by means of MRI 30 normal volunteers and 19 patients affected by different progressive ataxias, diagnosed by typical standards. On all the subjects measurements were performed in order to identify normal and pathological ranges. Our experience confirms that typical involvement can be detected in the different kinds of progressive ataxias. Peculiar compromissions were found in spinocerebellar diseases, able to differentiate them from the forms mostly involving the cerebellum and brainstem. The differentiation between typical Friedreich and non-Friedreich diseases can also be suggested in most cases.

Adolescent↗

Meniscal lesions of the knee joint: CT diagnosis.

Computed tomography (CT) resulted in a diagnostic accuracy of 89.2% and 96.1% for medial and lateral meniscal lesions, respectively, in 109 patients who underwent surgery after a direct CT study of the knee joint for a clinically suspected meniscal lesion. The meniscal lesions were the only pathologic condition found in 59 patients, while in 35 patients they were associated with various lesions of the cruciate ligaments (31 cases) and collateral ligaments (15 cases) and with cystic bursitis (6 cases). In the remaining 15 patients, the menisci were normal, but in eight of these cases, lesions of other knee joint structures were present. If meniscal lesions are clinically suspected, direct CT study of the knee joint may be considered the elective radiologic diagnostic method, rather than the more invasive arthrography. It may also be helpful in selecting patients for diagnostic and therapeutic arthroscopy.

Bursitis↗

Computed tomography of the knee joint: technique of study and normal anatomy.

Computed tomography was employed in 100 cases to examine the knee joint, without the use of intraarticular contrast medium administration. For greater resolution, only one leg of the patient was introduced into the gantry, and the limb being examined was immobilized and flexed at 8-10 degrees. Computed tomography clearly demonstrated all the anatomical structures that are of clinical interest such as menisci, cruciate and collateral ligaments, and articular and paraarticular soft tissues and tendons. The exact knowledge of the anatomy in axial view and in the indispensable sagittal and coronal reconstructions is fundamental in the identification of pathological conditions.

Humans↗

Talocalcaneal coalition: computed tomography and magnetic resonance imaging diagnosis.

A correct evaluation of site and extension of the talocalcaneal coalition inducing biomechanical ankle alterations is very important for planning therapy. Four male patients were submitted to computed tomography (CT) and three of them were also examined by means of magnetic resonance imaging (MRI). In one patient, studied by CT only, a bilateral talocalcaneal coalition was present, while the other three patients, controlled with CT and MRI, were affected by monolateral talocalcaneal coalition which was of osseous type in one case and fibrocartilaginous in two cases. CT and MRI provided detailed information on type and extension of the coalition and both helped in distinguishing between osseous and fibrocartilaginous forms. Only MRI showed an area of subchondral ischemic disease of the posterior subtalar joint in one patient with monolateral fibrocartilaginous talocalcaneal coalition. Compared with CT, MRI proved to be more accurate in evaluation of the talocalcaneal coalition, due to its wider display capability.

Adolescent↗

Prevalence of interstitial lung involvement in patients with connective tissue diseases assessed with high-resolution computed tomography.

OBJECTIVES: To assess the prevalence of interstitial lung disease (ILD) in patients with different forms of connective tissue disease (CTD) using non-invasive procedures including high-resolution computed tomography (HRCT) and to evaluate the relationship between the imaging and functional status of the patients. METHODS: Eighty-one subjects with CTD (47 inpatients and 34 outpatients) were evaluated with pulmonary function tests (PFT) and radiological investigations. The extent and severity of lung disease was quantified with an HRCT scoring system previously used in patients with systemic sclerosis (SSc). Interstitial lung involvement was defined as predominantly fibrotic or inflammatory based on HRCT abnormalities. RESULTS: HRCT abnormalities suggestive of ILD were observed in 69 patients (85.1%), whereas PFT and plain radiograph alterations occurred less frequently (40.7%). The most frequent HRCT abnormalities were septal/subpleural lines and ground-glass appearance whereas lesions consistent with advanced fibrosis were observed in a minority of patients. The HRCT score was higher in patients with abnormal PFT (p<0.001). Thirty-five patients had predominant fibrosis and 34 patients predominantly inflammatory abnormalities. A score of 10 points represented the best compromise between sensitivity and specificity in predicting functional impairment. CONCLUSIONS: A high prevalence of ILD was found based on HRCT abnormalities. However, HRCT scans characterized by minor abnormalities have poor specificity for clinically significant disease and functional findings should also be considered. The large number of patients with predominantly inflammatory HRCT abnormalities suggests that many cases of ILD may be diagnosed in a relatively early stage of the disease.

Adult↗

MR imaging of white matter lesions in uncomplicated chronic alcoholism.

Chronic alcoholics may have CNS lesions, such as microvasculitis or glial, neural, and myelin degeneration, as documented in postmortem studies on subjects who had Wernicke encephalopathy, corpus callosum degeneration, or central pontine myelinolysis. One may also expect the presence of early white matter disease in patients who do not have neurologic complications of alcoholism. Thirty-five chronic alcoholics (Diagnostic and Statistical Manual III criteria) and 35 normal control subjects were studied by means of magnetic resonance (MR) imaging. Subjects greater than 60 years old, or those with CNS involvement, or clinically evident systemic disorders were excluded. Of the remaining asymptomatic alcoholics, MR detected multiple round hyperintense areas in the white matter of 14 patients, in addition to aspecific corticosubcortical and cerebellar atrophies. None of the normal control subjects showed such a finding. These results suggest an early involvement of the brain in asymptomatic alcoholic patients.

Adult↗