LIVER METASTASIS IN ADVANCED OVARIAN CANCER AFTER CHEMOTHERAPY: A CASE REPORT

Ovarian cancer is the most lethal disease among gynecologic malignancies; about 1/4 of ovarian cancer patients are in stage IV when diagnosed. Based on the data of Globocan


Introduction
Ovarian cancer is the most lethal disease among gynecologic malignancies; about 1/4 of ovarian cancer patients are in stage IV when diagnosed (Bray et al., 2018;Shan et al., 2022).Ovarian cancer is a prevalent and deadly malignant cancer in females that is often diagnosed at an advanced stage with extensive metastasis (Siegel et al., 2021).Based on the data of Globocan, there were 295,414 newly diagnosed ovarian cancer patients and 184,799 deaths registered in 2018 (COPD, n.d.; Mendes et al., 2019).A previous study has reported that in the United States, there was about 21,750 newly diagnosed ovarian cancer patients and 13,940 deaths caused by ovarian cancer in 2020 (Siegel et al., 2021).
A study found that about 490,142 deaths due to ovarian was reported among 19,296,319,576 person-years at risk for women in China from 1990 to 2019 (Z.Wang et al., 2021).Ovarian cancer is often silently spilled and patients were mainly diagnosed as an advanced disease, which becomes one of the most lethal gynecological malignancy (Z.Wang et al., 2021).Approximately 70% of ovarian cancer patients were diagnosed with synchronous distant metastases due to the limited early, specific symptoms and effective screening strategies (Stewart et al., 2019).
Two types of liver lesions occur in ovarian cancer patients: liver parenchymal metastasis (LPM) and liver parenchymal invasion (LPI).LPI develops from perihepatic or diaphragmatic peritoneal metastasis (M.Wang et al., 2019).It is important for gynecologic oncologists to distinguish between LPM and LPI.LPM is classified as his stage IVB and is a type of hematogenous metastasis with short survival, whereas LPI is a type of peritoneal transplant disease that does not adversely affect prognosis.The definition of LPI is currently unknown.This was defined as a diaphragmatic or perihepatic peritoneal implant with liver involvement of at least 2 cm, irregular or absent interface between the lesion and the liver, and replacing part of the liver parenchyma (O'Neill et al., 2017).Patients with LPI should be treated the in the same way as those with LPM.For LPI lesions less than 4 cm in diameter, wedge resections without distinguishing the segmental anatomy are often used for preservation of liver volume (Shan et al., 2022).
Liver was identified to be the most common distant metastatic organ of ovarian cancer in stage IV which accounted for 37%-57%, followed by distant lymph nodes, lung, bone and brain (Deng et al., 2018;Gardner et al., 2020).Metastasis is the leading cause of death in ovarian cancer patients, with only 29% of women diagnosed with metastatic ovarian cancer having a 5-year survival rate.Despite continued improvements in chemotherapy drugs and advances in surgical techniques, the 5-year survival rate was only 29%.Survival rate is only 29%.Annual Survival Rates for Ovarian Cancer Patients Still Less Than 50% (Cai & Liu, 2021).The 2-year recurrence free survival of ovarian cancer patients was about 48%, less than 50% (Benoit et al., 2022).To identify factors associated with the mortality of patients with metastatic ovarian cancer is essential for improving the prognosis of these patients.Moreover, the study on HGSOC aims to understand the molecular and genetic features, diagnosis, and prognosis of HGSOC, as well as its response to therapy.

Research Methods
The patient (Mrs.E) was a P2L2, 47-year-old referral from an oncology polyclinic with recidive ovarian carcinoma + susp hepar metastase.Previously the patient complained of abdominal pain since 3 months ago.There is no history of an enlarged abdomen, no bleeding from the vagina, no fever, drastic weight loss in the last 2 months (+).The patient has not menstruated in the last 4 years.The patient had 2 children The patient was previously known with ovarian carcinoma and was treated with debulking.From the results of the PA examination, the results of PA were obtained: High grade serous carcinoma of the ovary metastasizing to the omentum, rectum, ileum, sigmoid, right and left paracolic, subhepatic and prevesical.The first operation was in 2019 on General Hospital in Bukittinggi, then the patient was treated with chemotherapy.
Then in April 2021, the patient went to Dr. M. Djamil General Central Hospital Padang with complaints of an enlarged stomach.At the time of examination suspected of a metastasis to the liver.Then the patient was operated on again by joining the digestive section and the tissue was examined at the PA laboratory.The results of metastatic carcinoma to the liver were obtained.The patient was then treated with chemotherapy again.In October 2022, the patient returned with complaints of nausea and vomiting and abdominal pain.The patient was re-examined and examined by CT scan.
Based on physical examination, the patient appears to be moderately ill, BP: 120/80 mmHg, pulse 84 x / min, breathing 22 x / min, temperature 36.7 C ͦ , body high 155 cm, weight 54 kg, BMI 22.5 kg / m2, on abdominal examination in the abdominal was not enlarged, there was tenderness, dull percussion and bowel sounds (+) normal.Gynecological examination was found the uterus of the vaginal vulva is quiet without any vaginal bleeding.From CT scan it was found residive left ovarian tumor with intrahepatic and splenic metastases, peritoneal carcinomatosis of the left upper abdomen.
Because the patient has had 2 operations and has finished chemotherapy, the patient is given the option of whether he still wants to have surgery by removing part of the liver tissue which might worsen the patient's condition or simply continue with further chemotherapy.The patient chooses to undergo surgery with all the risks.Then the patient was operated on again in collaboration with the digestive department for hepatectomy.

Results and Discussion
Ovarian cancer is the most lethal disease among gynecologic malignancies; about 1/4 of ovarian cancer patients are in stage IV when diagnosed (Bray et al., 2018;Shan et al., 2022).Ovarian cancer is a prevalent and deadly malignant cancer in females that is often diagnosed at an advanced stage with extensive metastasis (Siegel et al., 2021).Based on the data of Globocan, there were 295,414 newly diagnosed ovarian cancer patients and 184,799 deaths registered in 2018 (COPD, n.d.).
High-grade serous ovarian carcinoma (HGSOC) represents the most common form of epithelial ovarian carcinoma (Siegel et al., 2018).The absence of specific symptoms leads to late-stage diagnosis, making HGSOC one of the gynecological cancers with the worst prognosis.The cellular origin of HGSOC and the role of reproductive hormones, genetic traits (such as alterations in P53 and DNA-repair mechanisms), chromosomal instability, or dysregulation of crucial signaling pathways have been considered when evaluating prognosis and response to therapy in HGSOC patients.However, the detection of HGSOC is still based on traditional methods such as carbohydrate antigen 125 (CA125) detection and ultrasound, and the combined use of these methods has yet to support significant reductions in overall mortality rates (Punzón-Jiménez et al., 2022).
Two types of liver lesions occur in ovarian cancer patients: liver parenchymal metastasis (LPM) and liver parenchymal invasion (LPI).LPI develops from perihepatic or diaphragmatic peritoneal metastasis.It is important for gynecologic oncologists to distinguish between LPM and LPI.LPM is classified as his stage IVB and is a type of hematogenous metastasis with short survival, whereas LPI is a type of peritoneal transplant disease that does not adversely affect prognosis.The definition of LPI is currently unknown.This was defined as a diaphragmatic or perihepatic peritoneal implant with liver involvement of at least 2 cm, irregular or absent interface between the lesion and the liver, and replacing part of the liver parenchyma (O'Neill et al., 2017).Patients with LPI should be treated the in the same way as those with LPM.For LPI lesions less than 4 cm in diameter, wedge resections without distinguishing the segmental anatomy are often used for preservation of liver volume (Shan et al., 2022).
For tumors requiring the resection of one liver segment, nonmajor anatomic resection will minimize blood loss and allow a safe excision.In ovarian cancer, segmentectomy of 5 or 6 segments is more commonly needed.Patients may benefit from this more conservative approach because of the preservation of liver volume.To achieve a safe resection, techniques include the use of portal triad clamping selectively, keeping low intravascular volumes during parenchymal transection, hemostasis, and biliostasis with caution.A hepatobiliary surgeon is recommended for this procedure.Considering the goal of optimal cytoreduction for ovarian cancer, there are still controversies regarding whether a resection margin greater than 1 cm is needed, especially in patients with LPI.In recent years, minimally invasive laparoscopic LR has also benefited patients with liver involvement.The most common complication of surgery is pleural effusions, and other rare complications include bleeding, liver abscess, and bile or pancreatic leakage (Shan et al., 2022).
Liver was identified to be the most common distant metastatic organ of ovarian cancer in stage IV which accounted for 37%-57%, followed by distant lymph nodes, lung, bone and brain (Deng et al., 2018;Gardner et al., 2020).Metastasis is the leading cause of death in ovarian cancer patients, with only 29% of women diagnosed with metastatic ovarian cancer having a 5-year survival rate.Despite continued improvements in chemotherapy drugs and advances in surgical techniques, the 5-year survival rate was only 29%.Survival rate is only 29%.Annual Survival Rates for Ovarian Cancer Patients Still Less Than 50% (Cai & Liu, 2021).The 2-year recurrence free survival of ovarian cancer patients was about 48%, less than 50% (Benoit et al., 2022).To identify factors associated with the mortality of patients with metastatic ovarian cancer is essential for improving the prognosis of these patients.
Liver resection is the best choice for ovarian cancer patients with liver involvement.Other conservative treatments, such as thermal ablation techniques, TACE, and CT-HDRBT, are recommended for patients who are not eligible for surgery.
Difficulties in the early detection of HGSOC, before the disease develops to advanced stages, can be attributed to the lack of specific symptoms, which are usually missed or attributed to other pathologies (Punzón-Jiménez et al., 2022).In clinical practice, the diagnosis of EOC is based on four main techniques: pelvic palpation examination (PPE), imaging (which includes transvaginal ultrasound or sonography, magnetic resonance imaging, computed tomography, and positron-emission computed tomography), serum levels of specific proteins, and surgery (either laparoscopic or laparotomic) (Punzón-Jiménez et al., 2022).
Ranked as one of the most aggressive and deadly forms of gynecological cancer, HGSOC is currently considered to be a public healthcare issue that significantly impacts female patients' quality of life.Current challenges arise from the difficulty in establishing an early and effective diagnosis in patients with adnexal masses.HGSOC is mostly diagnosed in advanced FIGO stages (III-IV) due to the lack of symptoms and the use of traditional diagnostic methods.The performance of CA125-the only available molecular serum biomarker-alone or in combination with other biomarkers or TVS, has yet to support significant reductions in mortality rates (Punzón-Jiménez et al., 2022).
Other strategies have focused on the possible dual origin of HGSOC (the FTE or OSE) and the influence of hormones in promoting or protecting against the development of disease.Furthermore, HGSOC is characterized by extensive genomic instability, promoted by almost universal mutations in the TP53 gene, genes belonging to the HRR system, and CIN.Furthermore, alterations in multiple signaling pathways and epigenomic mechanisms have also been described (Punzón-Jiménez et al., 2022).
Research in this field is rapidly moving forward, allowing the molecular management of HGSOC by encompassing multiple disease-associated features in highthroughput, personalized approaches.Proof of such advances includes the putative gene panels and expression analyses intended for the stratification of HGSOC, the establishment of treatment-guided decisions, and the monitoring of disease progression, which can be extended to early detection (Punzón-Jiménez et al., 2022).

Conclusion
Liver was identified to be the most common distant metastatic organ of ovarian cancer in stage IV which accounted for 37%-57%, followed by distant lymph nodes, lung, bone and brain.Metastases is a major cause of mortality in ovarian cancer patients, and the 5-year survival rate was only 29% among women diagnosed with distant-metastatic ovarian cancer.
Liver resection is the best choice for ovarian cancer patients with liver involvement.Other conservative treatments, such as thermal ablation techniques, TACE, and CT-HDRBT, are recommended for patients who are not eligible for surgery.