[An automated procedure for the determination of the malignancy of tumorous tissue changes]

The accuracy of the "Histomat", an apparatus for automated histophotometric determination of malignant or benign tissues, was used on samples from 235 breast tumours (94 malignant and 141 benign tumours). Analysis of the measured data, using the schema developed by the manufacturer (Hytec), showed that in tumours of the breast this type of histophotometric analysis cannot distinguish between benign and malignant tissue changes. Its diagnostic use is therefore not justified.