Mature Cystic Teratoma of Ovary with Abnormally High Levels of Ca19-9: A Case Report / Teratoma maduro cístico do ovário com níveis aberrantes de Ca19-9: caso clínico

Abstract Mature cystic teratomas, or dermoid tumors, are the most common benign ovarian neoplasms in young women. Malignant transformation is rare, and occurs in less than 2% of the cases. The heterogeneous histological composition of these tumors may be responsible for the occasional elevation of various tumor markers, such as Ca19-9 and Ca125. We describe one case of mature cystic teratoma in a 50-year old woman with the second highest level of Ca19-9 (8922.76 UI/mL) described in the literature. We concluded that abnormal levels of Ca19-9 are not necessarily associated with ovarian malignancy, and may lead to unnecessary medical intervention and patient anxiety. Therefore, the clinical features, imaging studies and antigen testing should be interpreted carefully, and should not limit the surgical approach.

Resumo Os teratomas maduros císticos do ovário, ou tumores dermoides, são as neoplasias benignas mais frequentes em mulheres jovens. A sua transformação maligna é rara, e ocorre emmenos de 2% dos casos. A composição histológica heterogénea destes tumores pode ser responsável pela ocasional elevação de marcadores tumorais, como o Ca19-9 e o Ca125. Descrevemos umcaso de teratoma maduro cístico do ovário numa paciente de 50 anos com o segundo valor mais elevado de Ca19-9 (8922,76 UI/mL) descrito na literatura. Concluímos que níveis anormalmente elevados de Ca19-9 não estão necessariamente associados a tumores malignos, e podem conduzir a intervenções médicas desnecessárias e contribuir para o aumento da ansiedade da paciente. Portanto, as características clínicas, os estudos imagiológicos e os marcadores tumorais devem ser interpretados cuidadosamente, e não devem limitar o tipo de conduta cirúrgica.

Preoperative Serum Anti-Mullerian Hormone Level in Women with Ovarian Endometrioma and Mature Cystic Teratoma

PURPOSE: To investigate whether preoperative serum anti-mullerian hormone (AMH) levels are lower in women with ovarian endometrioma and in women with mature cystic teratoma of the ovaries. MATERIALS AND METHODS: In a tertiary university hospital, a retrospective case-control study was performed. Serum AMH levels between an advanced (stage III and IV) endometrioma group (n=102) and an age- and body mass index (BMI)-matched control group were compared. Serum AMH levels between an ovarian mature cystic teratoma group (n=48) and age- and BMI-matched controls were also compared. RESULTS: Absolute serum AMH and multiples of the median for AMH (AMH-MoM) relevant to Korean standards were lower in the endometrioma group than controls, but this was not statistically significant (mean+/-SEM, 2.9+/-0.3 ng/mL vs. 3.3+/-0.3 ng/mL, p=0.28 and 1.3+/-0.1 vs. 1.6+/-0.1, p=0.29, respectively). Specifically, the stage IV endometriosis group (n=51) exhibited significantly lower serum AMH and AMH-MoM (2.1+/-0.3 vs. 3.1+/-0.4 ng/mL, p=0.02 and 1.1+/-0.1 vs. 1.7+/-0.2, p=0.03, respectively). Serum AMH and AMH-MoM levels were similar between stage III endometriosis and controls (3.7+/-0.5 vs. 3.4+/-0.5 ng/mL and 1.6+/-0.2 vs. 1.5+/-0.2, respectively), as well as between the mature cystic teratoma group and controls (4.0+/-0.5 ng/mL vs. 4.0+/-0.5 ng/mL and 1.6+/-0.2 vs. 1.6+/-0.3, respectively). Interestingly, AMH-MoM level was negatively correlated with endometriosis score with statistical significance (r2=0.13, p<0.01). CONCLUSION: In women with advanced ovarian endometrioma, preoperative serum AMH values tended to be lower than those for age and BMI-matched controls. Notably, stage IV endometrioma appeared to be closely associated with decreased ovarian reserve, even before operation. Clinicians should keep this information in mind before undertaking surgery of ovarian endometrioma.

A unilateral teratoid Wilms' tumor with raised serum alpha-fetoprotein level.

Teratoid Wilms' tumor with raised serum alpha-fetoprotein level is an unusual type of tumor. We, here, describe a twelve month old boy presenting with lumbar mass. Clinical features, radiological findings, gross examination, and histomorphological features are studied, and various differential diagnoses like Wilms' tumor with heterologous elements, intrarenal teratoma and metastatic germ cell tumor are taken into consideration.

Retroperitoneal teratomas in children.

OBJECTIVE: This paper aims to highlight the clinical features, investigations and treatment of retroperitoneal teratomas condition. METHODS: 12 patients (8 females and 4 males, age range-2 months to 14 yrs) of retroperitoneal teratoma admitted to the department of Pediatric Surgery, King George Medical University, Lucknow between 1980 and 2004 were studied. Investigations included hematology, plain X-ray of the abdomen, intravenous urography, ultrasound, computerised tomography (CT) of the abdomen (after 1990, 8 patients) and serum alpha-fetoprotein assay (after 1991, 6 patients, preoperatively). All patients underwent surgery. Serum alpha-fetoprotein assay was used during follow-up to detect recurrence. RESULTS: Majority of the tumors were left pararenal in location. In two patients there was bilateral involvement. In all except one, the tumor could be excised easily preserving the kidneys. In one child with a massive cystic tumor with bilateral involvement, the tumor was marsupialised in the first stage and excised subsequently. One child died postoperatively, the other 11 children are well and there has been no tumor recurrence on follow-up. CONCLUSIONS: Retroperitoneal teratomas are uncommon lesions in children mostly arising in close relation to the kidneys. The majority are benign but complete excision is necessary for cure. Even large tumors with bilateral involvement of the retroperitoneum can be excised while preserving adjacent organs. Serum alpha-fetoprotein assay is a reliable method of detecting recurrence.