Advertisement

Placental calcifications

A biophysical and histologic study
      This paper is only available as a PDF. To read, Please Download here.

      Abstract

      Thirty human placentas from cases with various types of pregnancy complications and 20 placentas from normal pregnancies were examined by microradiography. Four different types of calcification could be distinguished by this method: (1) large strongly radiopague confluent calcifications on the maternal surface, (2) small weakly radiopague flakelike calcifications within the placenta, (3) veiled weakly radiopaque calcifications within the parenchyma, and (4) perivascular weakly radiopaque calcifications. No type was found to be specifically related to any pathologic disorder. X-ray diffraction examination of the first two types showed that they consisted mainly of calcium hydroxyapatite.
      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'

      Subscribe:

      Subscribe to American Journal of Obstetrics & Gynecology
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect

      References

        • Hassler O.
        J. Neurosurg. 1967; 27: 336
        • Masters M.
        • Clayton S.G.
        J. Obst. & Gynaec. Brit. Emp. 1940; 47: 437
        • Tindall V.R.
        • Scott J.S.
        J. Obst. & Gynaec. Brit. Comm. 1965; 72: 356