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Biomedical subjects

B Lane

Publications and source records attributed to B Lane.

At least 145 records · Page 8Linked to original sources

Primary biliary cirrhosis and scleroderma. The possibility of a common pathogenetic mechanism.

A woman with clinical manifestations of progressive systemic sclerosis had liver disease with histologic and immunologic features of primary biliary cirrhosis. Biopsy specimens of salivary gland showed necrosis and lymphocytic infiltrates in and around ducts similar to those observed in hepatic ducts, whereas neither of these tissues exhibited immunoglobulin or complement deposition. The ultrastructural and immunohistochemical studies suggest a common cell-mediated immunologic mechanism for the two disorders.

Female↗

Enlargement of subarachnoid spaces and lateral ventricles in pediatric patients undergoing chemotherapy.

This retrospective study investigated the possible adverse effects of cancer therapy on the brain. Cranial computed tomographic scans of 76 patients with non-central nervous system malignancies and 25 patients with leukemia had enlarged lateral ventricles and/or cortical sulci in 19% and 40%, respectively. Leukemic patients, especially those with meningeal involvement, had the most frequent and most severe abnormalities.

Adolescent↗

Computerized cranial tomography in cerebral diseases of white matter.

Computerized tomographic scans were performed on 31 patients with primary diseases of the white matter. Among 18 patients with multiple sclerosis, acute lesions were visualized in five, all with symptomatic cerebral hemisphere disease. Characteristic white matter lesions were also demonstrated in adrenoleukodystrophy, spongiform encephalopathy, progressive multifocal leukoencephalopathy, disseminated necrotizing leukoencephalopathy, and an undiagnosed leukoencephalopathy associated with malignancy. Besides identifying white matter abnormalities, the CT scan patterns were often specific enough to help distinguish among the various etiologic possibilities for the abnormalities. Useful diagnostic characteristics included the anatomic distribution of lesions, mass effect, atrophic changes, and enhancement after contrast infusion.

Adrenal Insufficiency↗

Cranial computed tomography findings in anorexia nervosa.

Four patients with anorexia nervosa were studied by cranial computed tomography (CT). Three of the four demonstrated abnormal enlargement of cortical sulci and subarachnoid spaces as compared with an age-matched control group. The relationship of this finding to established neuropathological changes in anorexia nervosa is discussed.

Adolescent↗

Diagnosis of progressive multifocal leukoencephalopathy by computed tomography.

Progressive multifocal leukoencephalopathy (PML) is a demyelinating disease of the central nervous system which predominantly affects immunologically compromised hosts. The distinctive CT appearance in three documented cases includes low-density lesions of central and convolutional white matter with scalloped lateral borders. Lesions demonstrate no mass effect or contrast material enhancement. Findings are discussed with reference to other entities which may produce a similar CT appearance.

Adult↗

CT scanning and diagnosis of adrenoleukodystrophy.

On computerized tomography scanning, two patients with adrenoleukodystrophy had low-density abnormalities in the parieto-occipital lobes, which enhanced anteriorly with contrast infusion. Computerized tomographic correlation with the published pathology is discussed. CT scanning may be an important diagnostic procedure in the early diagnosis of adrenoleukodystrophy.

Adrenal Insufficiency↗

Effect of oral contraceptives on rhythmic urinary metal excretion.

Thirteen women, six of whom were using oral contraceptive agents, between the ages of 23 and 34 years, free from illness, and without a previous clinical history of menstrual abnormality, were studied with chronobiological methods for circadian (about 24 hour) patterns of metal and creatinine excretinine excretion. Circadian rhythms were detected for the excretion of lithium, potassium, iron, sodium, copper, and creatinine. Statistically significant by lower 24 hour excretion (mesors) of lithium, potassium, and iron was detected for the subjects using oral contraceptive agents. Although all women adhered to nearly identical activity-rest (synchronization) schedules, the peak times (acrophases) of the metal excretory rhythms for oral contraceptive users were phase delayed by about two hours.

Adult↗

Orbital involvement by plasmacytoma. Report of two cases.

Two patients with orbital involvement of plasma cell myeloma are presented. The first patient presented an isolated plasmacytoma in the orbit; the second patient had generalized plasma cell myeloma. In both cases X-rays and computed tomographic scanning gave valuable information and biopsy confirmed the diagnosis.

Aged↗

Videodensitometry of cerebrospinal fluid pulsations.

Roentgen videodensitometry (RVD) during myelography is described in 13 patients with a variety of intraspinal lesions. Abnormalities in the RVD tracing are discussed and correlated with the type of spinal canal obstruction. Intramedullary, intradural and extradural processes may be differentiated by RVD.

Absorptiometry, Photon↗