MR Imaging Differentiation of Endometrial Cysts from Hemorrhagic Cysts

Ho‐Won Lee, Jung Sik Kim, Jong Hun Lee, Cheol Ho Sohn, Hong Kwan Kim
In: Journal of the Korean Radiological Society · 1998 · vol. 38(6) , pp. 1073 · doi:10.3348/jkrs.1998.38.6.1073 · W2345564821
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⚙ AI-generated summary by claude@2026-06+body, 2026-06-12 ⓘ

This study investigated if MRI can differentiate endometrial from hemorrhagic cysts and identified that multilocularity, septations, and cyst wall signal intensity/enhancement are helpful distinguishing features.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-12 · read from full text ⓘ

이 논문은 자기공명영상(MRI)에서 조직검사 또는 추적 초음파로 확인된 15예의 자궁내막성 낭종(평균 8.1cm)과 12예의 출혈성 낭종(평균 5.1cm)을 대상으로, 낭종의 크기/단·다방성, 낭종 내 신호강도, 그늘짐(shading), hematocrit 효과, 혈병(clot), 액체수준, 격막, 낭종벽의 두께·신호강도 및 조영증강 소견을 후향적으로 비교하였다. 자궁내막성 낭종은 73.3%에서 다방성이었으나 출혈성 낭종은 전 예 단방성이었고, 격막은 자궁내막성 낭종에서만 관찰되었으며, 낭종벽은 두께(≥3mm)와 벽의 저 신호강도/조영증강 유무에서 두 질환 간 통계적으로 유의한 차이를 보였다(P<0.05); 반면 신호강도, 그늘짐, hematocrit 효과, 혈병, 액체수준 등은 감별에 도움이 되지 않았다. 주요 한계로는 후향적 분석과 소규모 표본이며 일부는 조직학적 진단 대신 추적 초음파 소실로 출혈성 낭종을 확정한 점이 명시되어 있다. This paper is centrally about endometriosis — specifically endometrial cysts/endometriomas and how MRI differentiates them from hemorrhagic ovarian cysts.

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Materials and methods

The MR findings of twelve patients with endometrial cysts(IS cases) and of nine patients with hemorrhagic cyst(12 cases) were retrospectively evaluated. Fourteen patients were surgically corfirmed and seven with hemorrhagic cysts were clinically diagnosed by resolution of the cysts during ultrasound follow up. Sixteen patients underwent MR imaging using a l. ST sys­ tem(Magnetom Vision , Siemens , Germany) , and for five patients a 2 .0T system(Spectro 2000 , Gol­ dstar , Korea) was used . MR images were retrospectively evaluated with respect to size and signal intensity of the cyst , uni/multilocularity , shading , the hematocrit effec t, clot fluid-fluid level and septum , and thickness , signal intensity and enhancement of the cyst wal l.

Results

Eleven(73.3 %) endometrial cysts were multilocular , but all hemorrhagic cysts were uni­ locula r. The signal was hyperintense on both Tl W1 and T2W1 in ten(66.7 %) endometrial cysts and seven(S8 .3 %) hemorrhagic cysts. Shading was found in five(33.3 %) and one(8.3 %), respectively; the hematocrit effect in two(13.3 %) and five(4 1. 7 %) respectively , clot in two of each type(13.3% , 16.7 %), and fluid-fluid level in only one hemorrhagic cyst. Septum was found only in endometrial cysts(five cases , 33.3 %); its signal intensity on both TIW1 and T2W1 was low , and on Gd-enhanced images was not enhanced. The cyst wall was thick in five of each type(33.3 %, 41.7 %); its signal in­ tensity was low on both Tl W1 and T2W1 , and not enhanced on Gd-enhanced images. 1n eight hemorrhagic cysts , however , the cyst wall was iso to high in signal intensity on both Tl W1 & T2WL and was enhanced on Gd-enhanced images. The prevalence of uni/ multilocularity , septum , and signal intensity and the presence of enhancement of the cyst wall were significantly different between the two groups(p ( O.OOS).

Conclusion

Uni/multilocularity , septum , and signal intensity and enhancement of the cyst wall were useful for the differentiation of endometrial from hemorrhagic cysts. Signal intensity of the cyst , shading , the hematocrit effect and clot were not helpfu l. 職 1 1lli 뺑 m m 쩌 쩌 때 0 0 0 -‘ 빼 없 뼈 Address reprint requests to: Jung Sik Kim, M.D., Department of Diagnostic Radiology, Dongsan Medical Center, Keimyung University, # 194 Dongsan-Dong, Chung-Gu, Taegu 700-712 Korea Tel. 82-53-250-7767 , Fax. 82-53-250-7766 , e-mail. [email protected]. kr - 1079 」 1999 년도 대한방사선의학회 해외연수 장학생 모집공고 대 한 방사 선 의 학회에서는 국제 화 전략의 일 환으로 다음과 같이 1999 년 도 해외연수 장학생을 모집 하오 니 많은 응모가 있기를 바 랍 니다. 1.해당연수국가및 인원 일본 : 0 명(동강무역 후원) 독일 :0 명(쉐링 후원) 스칸디나비아 3국 : 1 명(나이코메드후원) 2 . 연수기간 일본，독일 :3 개월 이상 스칸디나비아 3 국: 1 년 원 히「 처。 히「 학 샌 격 사 자 방 모 한 응 대 ?니 ? 4 . 장학금 왕복 항공료 및 기본 생활비 5. 제출서류 1) 이력서 2) 연구실적 (5년간) 3) 연수계획서(희망국가 및 병원， 희망전공분야， 연수기간 등 포함) 4) 추천서(소속과장，과장의 경우소속병원장) 5) TOEIC 흑은 TOEFL 점 수 증빙 서 ( 일본은 JPT도 가능) 6) 서약서(자유양식) 6 . 제출마감 ’ 9 8 년 7 월 3 1 일 <7 월 31 일 소인까지 유효〉 7 . 제출처 대한방사선의학회 국제협력위원회 울산의대 서울중앙병원 진단방사선과 서울특별 시 송파구 풍납동 388-1 (우) 138-736 8 . 합격자는국제협력위원회의 선 정을 거쳐 개인에게 통보 9. 기타 문의사항은 대한방사선의학회 국제협력위원회 (울산의대 서울중앙병원 진단방사선과 소재 Tel. (02)224- 4362, FAX: (02)476-4719, E-mail: chyoon @ www . amc.seoul. kr) 로 문의하시기 바랑니다. 1080

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