Mucinous cystadenoma, serous cystadenoma and benign cystic teratoma of the ovary.Clinico-pathologic differences observed in a Malaysian hospital

Previous studies have suggested that the proportion of left ovarian endometriotic cysts is significantly higher than the expected 50% [1], but that ovarian dermoid cysts have a predisposition to a right lateral distribution [2][3][4].We studied the distribution of benign ovarian cysts in 1184 consecutive women undergoing surgery at our institution between August 1994 and December 2003. Information was abstracted from a continuously updated database. Functional follicular and luteal cysts were not considered in the present study. Women with cysts of different histologic origin in the same ovary or bilaterally, and those who had undergone abdominal surgery for reasons other than appendectomy, were also excluded from the study. Institutional review board approval was not requested because this was a retrospective study. Statistical analysis was performed using analysis of variance, one-way analysis of variance on ranks, the Mann-Whitney U test, and the v 2 -test.Dermoid cysts were present bilaterally in 8.6% of the women. Among women with unilateral dermoid cysts, the numbers of left-sided cysts (55.0%) and right-sided cysts (45.0%) were similar ( P=0.159). Unilateral endometriotic cysts were more frequent on the left than on the right ovary ( Pb0.001). Bilateral cysts were more frequent in women with endometriotic cysts (19.3%) than in those with nonendometriotic cysts (7.2%) (odds ratio, 3.11; 95% confidence interval, 2.15-4.50; Pb0.001). Serous, mucinous, and paraovarian 0020-7292/$ -see front matter D

contrasting

confidence: 99%

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mentioning

confidence: 99%

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Lateral distribution of benign ovarian cysts

Ferrero

Ragni

Fulcheri

2005

Clinical and pathologic evaluation of 342 benign ovarian tumors

Portuondo¹,

Gimenez²,

Rivera³

et al. 1984

A series of 289 patients who were diagnosed with 342 benign ovarian tumors (BOT) at laparotomy have been reviewed. Mean age was 36.7 years (S.D. +/- 13.9), mean parity was 1.5 (S.D. +/- 1.6); 236 (81.7%) patients had a single unilateral ovarian tumor; 29 (10%) patients had bilateral ovarian tumors. Benign cyst teratoma was diagnosed in 89 (26%) tumors, and it was the most frequent histological type. In eight patients (2.8%) the post-operative pathologic report was compatible with malignancy, despite the lack of suspicion at laparotomy. Mean maximal diameter of BOT was 9.1 cm, and almost 60% of the mucinous cystoadenomas were larger than 16 cm. Benign cyst teratoma and serous cytoadenoma had a medium size, about 6-10 cm. Lower abdominal-pelvic pain was the symptom most frequently reported by patients with BOT. Calcifications were most frequently seen in benign cyst teratoma. Tumors of 11-15 cm in size were the tumors most frequently torsioned. Twenty four (8.3%) patients had their surgical operation done during pregnancy; benign cyst teratoma was the tumor most frequently associated with pregnancy.

A clinico‐pathologic study of ovarian neoplasm

Gopeesingh

Rahaman

Charran

1988

A series of 96 patients who were diagnosed with 120 ovarian neoplasms at surgery have been reviewed. Nine types of benign ovarian cysts were encountered. Benign cystic teratoma with an incidence of 30% was the commonest tumor. The majority of these were in the 20-30 year age range. The mean age of the patients with mucinous cyst adenoma and benign cystic teratoma was significantly less (P less than 0.05) than those with serous cyst adenoma. The incidence of ovarian malignancies of 8.3% was low, and none of the malignancies was bilateral. There was a high incidence of 8.3% of malignant change in benign cystic teratomas. Abdominal pain and swelling were the symptoms most frequently experienced in patients with benign ovarian neoplasms.