Abstract
A procedure is presented for exact, detailed comparison of light and electron microscopic analyses of tissues with complex architecture. Earlier techniques require one to make drawings of tissue pieces to be analyzed by electron microscopy to permit rough localization of the origin of the tissue pieces. Specifically, exact analysis of fetal cartilage and bone is hampered by the complicated arrangement of both tissue components, severely limiting the assessment of electron microscopic analyses. The advantage of the technique described here is that it allows precise localization of the tissue sample in the original tissue area. Punches 1 mm in diameter were obtained from femora and coxae with a syringe and embedded for light and electron microscopy. The remaining tissue with its exactly defined punctures is prepared for standard histology. Human fetal cartilage and bone tissue were used to demonstrate this technique, but this procedure may be used for other kinds of tissues.
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