AJR 2003; 180:284
© American Roentgen Ray Society
Placenta Percreta Versus Ectopic Pregnancy
Deborah Levine
Beth Israel Deaconess Medical Center Boston, MA 02215
I read with interest the case of "Sonography of Placenta Percreta
During the First Trimester"
[1]. The article nicely
illustrates a gestational sac in the scar from a prior cesarean delivery. The
case described appears similar to the reports of ectopic pregnancy in a
cesarean delivery scar
[2,3,4,5,6,7,8].
The distinction between placenta percreta (which necessitates surgery because
of invasion of the myometrium and often results in hysterectomy) and ectopic
pregnancy in a scar (which may be treated conservatively with methotrexate,
depending on the condition of the patient) is important clinically. Was the
possibility of ectopic pregnancy considered in this patient?
References
- Buetow, MP. Sonography of placenta percreta during the first
trimester. (letter) AJR
2002;179:535[Free Full Text]
- Godin PA, Bassil S, Donnez J. An ectopic pregnancy developing in a
previous caesarian section scar. Fertil Steril
1997;67:398
-400[Medline]
- Valley MT, Pierce JG, Daniel TB, Kaunitz AM. Cesarean scar
pregnancy: imaging and treatment with conservative surgery. Obstet
Gynecol 1998;91:838
-840[Medline]
- Roberts H, Kohlenber C, Lanzarone V, Murray H. Ectopic pregnancy in
lower segment uterine scar. Aust N Z J Obstet Gynaecol
1998;38:114
-116[Medline]
- Padovan P, Lauri F, Marchetti M. Intrauterine ectopic pregnancy: a
case report. Clin Exp Obstet Gynecol
1998;25:79
-80[Medline]
- Nawroth F, Foth D, Wilhelm L, Schmidt T, Warm M, Romer T.
Conservative treatment of ectopic pregnancy in a cesarean section scar with
methotrexate: a case report. Eur J Obstet Gynecol Reprod
Biol 2001;99:135
-137[Medline]
- Lee CL, Wang CJ, Chao A, Yen CF, Soong YK. Laparoscopic management
of an ectopic pregnancy in a previous Caesarean section scar. Hum
Reprod 1999;14:1234
-1236[Abstract/Free Full Text]
- Neiger R, Weldon K, Means N. Intramural pregnancy in a cesarean
section scar: a case report. J Reprod Med
1998;43:999
-1001[Medline]
Reply
Michael P. Buetow
Lansing Radiology Associates Sparrow Health System Lansing, MI
48912
I thank Dr. Levine for her letter. In that the gestational sac is
abnormally located, the case represents a form of ectopic pregnancy, which was
the working diagnosis at patient presentation. Ultimately, the patient's
deteriorating clinical condition required surgery, at which it was discovered
that the gestational sac had completely penetrated the uterus at the site of
the cesarean scar and extended into the anterior cul-de-sac
[1].
References
- Buetow, MP. Sonography of placenta percreta during the first
trimester. (letter) AJR
2002;179:535[Free Full Text]

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