Circumvallate Placenta
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References:

1) Kanne JP, Lalani TA, Fligner CL. The placenta revisited: radiologic-pathologic correlation.
Curr Probl Diagn Radiol 2005; 34(6):238-255
[PDF]

2) Harris RD, Wells WA, Black WC. Accuracy of Prenatal Sonography for Detecting Circumvallate
Placenta. AJR 1997; 168:1603-1608
[PDF]

3) Shen O, Golomb E, Lavie O. Placental shelf – a common, typically transient and benign finding
on early second-trimester sonography. Ultrasound Obstet Gynecol 2007; 29:192-194
[PDF]

4) Benirschke K, Kaufmann P, Baergen R (2006). Pathology of the Human Placenta, Fifth Edition.
New York: Springer.
[PDF]

5) Hobbs JE, Price CN. Placenta Circumvallata. Am J Obstet Gynecol 1940;39:39-44 [PDF]

6) Pinkerton JHM. Placenta Circumvallata: Its Aetiology and Clinical Significance. BJOG 1956;63
(5):743-747
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7) Scott JS. Placenta Extrachorialis (Placenta Marginata and Placenta Circumvallata). BJOG 1960;
67(6):904-918
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8) Paalman RJ, Vander Veer CG. Circumvallate Placenta. Am J Obstet Gynecol 1953;65(3):491-
497
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9) Wilson D, Paalman RJ. Clinical Significance of Circumvallate Placenta. Obstet Gynecol 1967;29
(6):774-778
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10) Benson RC, Fujikura T. Circumvallate and Circummarginate Placenta: Unimportant Clinical
Entities. Obstet Gynecol 1969;34(6):799-804
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11) McCarthy J, Thurmond AS, Jones MK. Circumvallate Placenta: Sonographic Diagnosis. J
Ultrasound Med 1995;14:21-26
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12) Jauniaux E, Avni FE, Donner C. Ultrasonographic Diagnosis and Morphological Study of
Placenta Circumvallate. J Clin Ultrasound 1989;17:126-131
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13) Bey M, Dott A, Miller JM. The Sonographic Diagnosis of Circumvallate Placenta. Obstet
Gynecol 1991;78(3):515-516
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14) Sistrom CL, Ferguson JE. Abnormal membranes in obstetrical ultrasound: incidence and
significance of amniotic sheets and circumvallate placenta. Ultrasound Obstet Gynecol 1993;3:
249-255
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