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Biomedical subjects

B Makkink

Publications and source records attributed to B Makkink.

6 recordsLinked to original sources

Giant-cell arteritis with normal erythrocyte sedimentation rate: case report and review of the literature.

A high Erythrocyte Sedimentation Rate (ESR) is often seen as a sine qua non for the diagnosis of giant-cell arteritis. The percentages of histopathologically proven giant-cell arteritis associated with a normal ESR, however, are variously reported as 5 to 30%. We describe a patient with histopathologically proven giant-cell arteritis and a normal ESR. A review of literature identified 34 cases of giant-cell arteritis who showed a normal ESR. Their clinical symptoms and signs are compared with the characteristics of patients with giant cell arteritis and an elevated ESR. No distinctive clinical features were found. A normal ESR cannot be used to exclude the diagnosis of giant-cell arteritis.

Adult↗

Trace-element concentrations in human autopsy tissue.

In this report on trace-element concentrations (As, Ca, Cd, Cl, Co, Cr, Cu, Fe, Hg, K, Mg, Mn, Mo, Na, Ni, Pb, Rb, Sb, Se, Zn) in human heart, liver, kidney, aorta, and rib obtained from 200 autopsied patients, we give special attention to sampling procedure, analysis technique, and various sources of error (autolysis, contamination with blood, and lack of sample homogeneity). We present the concentration data (averages, standard deviations, and ranges) obtained by neutron activation analysis, and we analyze the distribution of the data. The three types of distribution we distinguished are relevant to considerations of the importance of processes of storage of certain elements in specific organs.

Aorta↗

Congenital malformations of the spinal cord without early symptoms.

Description of 11 patients with congenital malformations of the spinal cord. Six of them were males, five females and the age varied from 7 to 70 years. Most of these cases produced clinical neurological signs indicating spinal cord disease in later life during an intercurrent disease. It was thought that changes in the bloodvessels and/or perfusion of the area of the spinal cord malformation was the ultimate cause of the neurological symptoms. An exact explanation of the origin of these developmental disturbances of the spinal cord remains unknown. Different hypotheses proposed in the literature, concerning these malformations, are not satisfactory.

Adolescent↗

Prognostic indicators in breast cancer--morphometric methods.

Morphometric methods were applied to predict the clinical course of individual patients with breast cancer. Measurement of tumour diameter, assessment of mitotic and cellular indices, and quantitative microscopy of nuclear features were assessed together with nuclear features and histological grades. Of the tumours from 78 patients investigated, 42 had died from metastases within 6.5 years ('non-survivors'), while the other 36 were alive and well without evidence of metastases at the end of the follow-up period (minimum 6.5 years) ('survivors'). If the tumours of the 42 non-survivors are compared with those of 36 survivors, there are many reproducible significant differences, the most important being cellularity index and mitotic activity index, followed by quantitative microscopical nuclear parameters and nuclear and histological grade. Discriminant analysis, of the quantitative microscopical data alone showed 82% of all patients to be correctly classified as survivor or non-survivor. By contrast with the axillary lymph node invasion status alone, or the tumour diameter and axillary lymph node status together, 59% and 64% of the patients were predicted correctly as survivor or non-survivor. With a more realistic statistical approach of discriminant analysis, 78% of the patients were classified correctly with quantitative microscopy, in place of 54% with the axillary lymph node status, 56% with the TNM-system and 64% with a combination of TNM system and nuclear and histological grade. Morphometry thus seems possible to predict the outcome of individual patients more accurately than with the usual staging/grading methods. This technique might therefore prove to be useful in the selection of patients for adjuvant chemotherapy.

Axilla↗