Abstract
Endometriosis of the abdominal wall usually occurs in a scar, and rarely in the intact rectus abdominis muscle. A 38-year-old woman presenting with an abdominal wall mass, which was cyclically tender with her menstrual periods, had an endometrioma not related to a previous scar. Based on a sonogram, the mass was solid, hypoechoic, and situated entirely within the rectus muscle. The differential diagnosis includes abscess, hematoma, and neoplasm, but the cyclical tenderness and enlargement of the mass confirms the diagnosis.
References
1.
1.
Marik JJ
: Current concepts in endometriosis: An international review-etiology . J Reprod Med
1977 ; 19 :301 -302 .
2.
2.
Chun JT
,
Nelson HS Jr
,
Muall KL
: Endometriosis of the abdominal wall . South Med J
1990 ;83 :1491 -1492 .
3.
3.
Aimakhu VE
: Anterior abdominal wall endometriosis complicating a uteroabdominal sinus following classical cesarean section . Int Surg
1975 ;60 :103 -104 .
4.
4.
Frydman CP
,
Shwartz JW
,
Schwartz IS
: Mt Sinai J Med
1986 ;53 :160 -162 .
5.
5.
Miller WB
,
Melson GL
: Abdominal wall endometrioma . AJR
1979 ;132 :467 -468 .
6.
6.
Steck WD
,
Helwig EB
: Cutaneous endometriosis . Clin Obstet Gynecol
1966 ;9 :373 -383 .
7.
7.
Coley BD
,
Casola G
: Incisional endometrioma involving the rectus abdominus muscle and subcutaneous tissues: CT appearance . AJB Am J Roentgenol
1993 ;160 :549 -550 .
8.
8.
Vincent LM
,
Mittlestaedt CA
: Sonographic demonstration of endometrioma arising in cesarean scar . J Ultrasound Med
1985 ;4 :437 -438 .
9.
9.
Wolf GC
,
Kopecky KK
: MR Imaging of endometriosis arising in cesarean section scar . J Comput Assist Tomogr
1989 ; 13 :150 -152 .