Carcinoma of the thyroid with leptomeningeal dissemination following the treatment of a toxic goitre with 131-I and methyl thiouracil. Case with a co-existing intracranial dermoid.
Explore the source record for details and available documents.
Aged↗
Biomedical subjects
R O Barnard
Publications and source records attributed to R O Barnard.
The classification of tumours of the central nervous system.
Explore the source record for details and available documents.
Brain Neoplasms↗
Aspergillosis of the nervous system. Report of two cases.
Two cases of Aspergillus infection of the nervous system are reported. In the first case it occurred in a healthy individual and presented as a space occupying lesion mimicking a tuberculous granuloma. In the second case it was an opportunistic infection in a patient with predisposing conditions and manifested as chronic meningitis with fatal arteritis.
Adult↗
Abnormal tubular structures associated with the granular endoplasmic reticulum of neocortical neurons in a biopsy from a patient with Alzheimer's disease.
The electron microscope has been used to examine a diagnostic biopsy of frontal neocortex which showed the light microscopic features of Alzheimer's disease. In addition to plaques and tangles, the biopsy showed some neurons which contained abnormal tubular profiles specifically associated with their granular endoplasmic reticulum. In transverse section the profiles consisted of two concentric layers of trilaminar unit membrane with an overall diameter of approximately 75 nm and they appeared to lie within the cisternae of granular endoplasmic reticulum. When cut longitudinally, the structures appeared as elongated tubes lying within the endoplasmic reticulum, but a number of ends were found where the inner membrane formed a closed tube and the outer membrane folded back and was continuous with the membrane forming the outer layer of the sac of endoplasmic reticulum. These profiles do not appear to have been described previously although similarities between their ultrastructure and that of the coat of certain unusual forms of Rhabdovirus are noted.
Alzheimer Disease↗