Vascular Anatomy and Variations of the Anterior Abdominal Wall - Significance in Abdominal Surgery.

Detailed knowledge of the human anatomy is an integral part of every surgical procedure. The majority of surgery related complications are due to a failure to possess appropriate knowledge of human anatomy. However, surgeons pay less attention of the anatomy of the anterior abdominal wall. It is composed of nine abdominal layers, which are composed of fascias, muscles, nerves, and vessels. Many superficial and deep vessels and their anastomoses supply the anterior abdominal wall. Moreover, anatomical variations of these vessels are often presented. Intraoperative and postoperative complications associated with entry and closure of the anterior abdominal wall could compromise the best surgical procedure. Therefore, sound knowledge of the vascular anatomy of the anterior abdominal wall is fundamental and a prerequisite to having a favourable quality of patient care. The purpose of the present article is to describe and delineate the vascular anatomy and variations of the anterior abdominal wall and its application in abdominal surgery. Consequently, the most types of abdominal incisions and laparoscopic accesses will be discussed. Furthermore, the possibility of vessels injury related to different types of incisions and accesses will be outlined in detail. Morphological characteristics and distribution pattern of the vascular system of the anterior abdominal wall is illustrated by using figures either from open surgery, different types of imaging modalities or embalmed cadaveric dissections. Oblique skin incisions in the upper or lower abdomen such as McBurney, Chevron and Kocher are not the topic of the present article.

Surgical and Anatomical Basics of Pelvic Debulking Surgery for Advanced Ovarian Cancer - the "Hudson Procedure" as a Cornerstone of Complete Cytoreduction.

Ovarian cancer (OC) is the fifth most common cause of death in women and accounts for more deaths than any other cancer of the female reproductive tract. OC usually spreads through peritoneal dissemination and direct invasion. Optimal cytoreduction (no macroscopic residual disease) and adjuvant platinum-based chemotherapy are the fundaments of OC treatment. OC is usually diagnosed at advanced stages, hence the obliteration of the Douglas pouch by the tumor as well as disseminated pelvic peritoneal carcinomatosis are commonly seen. Radical surgical cytoreduction typically requires a retroperitoneal approach to the pelvic masses and multivisceral resections in the upper abdomen. In 1968, Christopher Hudson introduced a new retroperitoneal surgical technique ("radical oophorectomy") for fixed ovarian tumors. Since then, numerous modifications have been described, including visceral peritonectomy, the "cocoon" technique, Bat-shaped en-bloc total peritonectomy (Sarta-Bat approach), or en-bloc resection of the pelvis. Although these modifications expanded the classical description in many ways, the concepts and key surgical steps are derived from the Hudson procedure. However, there are some gaps or disagreements regarding the anatomical or practical rationale for certain surgical steps. The purpose of this article is to outline the critical steps of radical pelvic cytoreduction ("Hudson procedure"), and to delineate the anatomical basis for the procedure in the proposed form. In addition, we discuss the controversies and address the perioperative morbidity associated with the procedure.

A rare case of angiomyomatous hamartoma in the pelvic and paraaortic lymph nodes.

Angiomyomatous hamartoma (AMH) of the lymph node is an extremely rare, benign vascular disease of unknown etiology. It is characterized by partial or complete replacement of the lymph node parenchyma by irregularly distributed, thick-walled blood vessels, smooth muscle bundles and adipose tissue in a fibrotic stroma. Angiomyomatous hamartoma occurs mainly in inguinal and femoral nodal regions, but there are a few reports of some other locations - submandibular, cervical, popliteal and paraaortic lymph nodes. We present a case of a 37-old female patient with AMH in the pelvic and paraaortic lymph nodes who presented with weight loss - 7 kg in 7 months. The differential diagnosis of AMH includes lymphangiomyomatosis, which, unlike AMH, involves primarily thoracic and intra-abdominal lymph nodes: nodal leiomyomatosis with less pronounced vascular proliferation and angiomyolipoma of the lymph node. The latter is composed of the same tissues as in AMH, but the smooth muscle component shows increased cellularity, polymorphism and increased mitotic activity, as well as a typical immune profile with coexpression of melanocyte markers and estrogen, which were negative in our case. The world literature references show that this is the first reported case in which the disease manifested itself with weight loss and affected paraaortic lymph nodes in a female patient.

A very rare case of echinococcus granulosus arising in the ovary and the uterus.

Hydatidosis is a zoonosis caused by the larval form of a cestode of the species Echinococcus granulosus, the canine tapeworm. It can affect any organ of the human body except nails, hair, and cornea. It most often involves the liver, lungs, muscles, and bones. Involvement of organs in the small pelvis is extremely rare, mainly secondary to dissemination of hydatidosis from another organ, and the ovaries are most often involved, followed by the uterus. We present a 41-year-old Caucasian woman with complaints of mild pain, heaviness in the small pelvis, and a fibroid detected by ultrasound examination. She had reported for 2 previous operations for echinococcus cysts, and we found cystic formations in the liver and pelvis by computed tomography. It was decided that it is a recurrence of echinococcosis with a new cyst both in ovary and uterus. A hysterectomy with adnexectomy was performed, and one year later there is no evidence of recurrence of echinococcosis. In the presence of a formation in the small pelvis, one should always think about echinococcosis, especially if there is evidence of previous manifestations of the disease. Diagnosing this disease is extremely important for proper treatment. As rare as uterine involvement is, this possibility should not be overlooked.

Papillary Squamotransitional Cell Carcinoma of the Uterine Cervix with Atypical Presentation: A Case Report with a Literature Review.

Introduction: Cervical cancer is the fourth most prevalent malignancy and the fourth leading cause of cancer-related death in women around the world. Histologically, squamous cell carcinoma (SCC) is the most common form of cervical cancer. SCC has several subtypes, and one of the rarest is papillary squamotransitional cell carcinoma (PSCC). In general, PSCC is believed to have a similar course and prognosis to typical SCC, with a high risk of late metastasis and recurrence. Case report: We discuss the case of a 45-year-old patient diagnosed with PSCC who was admitted to our department in December 2021. The clinical manifestations were pelvic discomfort and lymphadenopathy throughout the body. On admission, all laboratory values, with the exception of C-Reactive Protein (CRP) at 22.35 mg/L and hemoglobin (HGB) at 87.0 g/L, were normal. The clinical and ultrasound examination revealed a painful formation with indistinct borders in the right portion of the small pelvis. Following dilation and curettage, a Tru-Cut biopsy of the inguinal lymph nodes was performed. The investigation histologically indicated PSCC. MRI of the small pelvis showed an endophytic tumor in the cervix with dimensions of 35/26 mm and provided data for bilateral parametrial infiltration; a hetero-intensive tumor originating from the right ovary and involving small intestinal loops measuring 90/58 mm; and generalized lymphadenopathy and peritoneal metastases in the pouch of Douglass. The FIGO classification for the tumor was IVB. The patient was subsequently referred for chemotherapy by the tumor board's decision. Discussion: Despite the generally good prognosis of SCC, PSCC is a rare and aggressive subtype. It is usually diagnosed at an advanced stage and has a poor prognosis. Conclusions: PSCC is a rare subtype of SCC, and its diagnosis and treatment are challenging.

Placental site trophoblastic tumour mimicking an intramural pregnancy: a case report and review of the literature.

Gestational trophoblastic disease (GTD) covers a range of proliferative disorders from non-neoplastic hydatid moles to malignant neoplastic conditions such as choriocarcinoma. The incidence of these diseases is low and often challenging to diagnose. Placental site trophoblastic tumour (PSTT) is the rarest form of GTD, accounting for up to 3% of all cases. We present a case of a 35-year-old patient diagnosed with PSTT mimicking an intramural pregnancy. Placental site trophoblastic tumour occurred after pregnancy, which ended as a blighted ovum. ß-hCG was not very high, and the patient had no complaints. The diagnosis was made after resection of formation which was accepted for intramural pregnancy. To our knowledge, this is the first such case described in the literature. A hysterectomy performed later confirmed the absence of a residual tumour after conservative intervention. The lack of distant metastases, confirmed by positron emission tomography-computed tomography scan, allowed for only hysterectomy with bilateral salpingo-oophorectomy to be performed. The patient was classified as low risk according to the World Health Organization (WHO) scoring system. Placental site trophoblastic tumour is a rare malignant tumour (despite its WHO coding) from the group of GTDs. It is not presented with a classic clinical picture, and its clinical diagnosis is challenging. However, clinicians should consider it in the case of unclear events after any type of pregnancy.

Initial presentation of renal cell carcinoma as a vaginal mass with excessive bleeding.

Introduction: Renal cancer is the seventh most common cancer in men and the tenth most common cancer in women. Renal cell carcinoma accounts for 3% of all adult malignancies and 85% of all primary renal tumours. It metastasizes most often to the lungs, liver, bones, and brain and very rarely to the vagina. Case report: We present a case of a 60-year-old patient, in whom the renal cell carcinoma manifested for the first time as an intense bleeding, soft tumour formation with dimensions 4/6 cm originating in the vagina. Discussion: Renal cell carcinoma metastasizes in about 30% of cases. Metastasizing can be lymphatic, hematogenous, transcoelomic, or by direct invasion. Most commonly it affects the lungs, bones, adrenal glands, liver, lymph nodes, and brain. Much less often, it metastasizes to the thyroid, orbit, nasal structures, vagina, gallbladder, pancreas, sublingual tissues, and soft tissues of distal extremities. Metastases can be synchronous and metachronous. The described cases in the literature of renal cell carcinoma manifested with vaginal metastases are isolated. Conclusions: We present an extremely rare case of renal cell carcinoma manifested by profuse genital bleeding from a vaginal metastasis. In such cases, especially if the vaginal lesion does not appear as the primary vaginal carcinoma, we must consider the possibility of metastasis from renal carcinoma.

GYNAECOLOGICAL ONCOLOGIC DISEASES AND PREGNANCY.

We review the current research literature on treatment behaviour for neoplasms of the female genital tract during pregnancy. Guidelines for clinical management of cervical cancer, ovarian tumours, and vulvar cancer are presented both regarding gynaecological oncologic treatment and obstetrics. Cervical cancer is the most common malignant tumour of the female genitalia during pregnancy due to the high incidence of this neoplasm in developing countries, including Bulgaria, on the one hand, and on the other, it affects women of reproductive age. Treatment algorithms depending on various factors - gestational age, stage of the disease, tumour lesion size, and presence of pelvic lymph node metastases, are presented. Ovarian tumours are classified into benign, borderline malignant, and malignant tumours. The latter, in turn, are divided into early and advanced stages, as well as epithelial and non-epithelial tumours, which can be detected at different stages of pregnancy.

First-stage clear-cell endometrial carcinoma with paraaortic lymph node recurrence: a case report.

INTRODUCTION: Endometrial cancer (EC) is the sixth most common malignancy in women worldwide; in developed countries this oncological entity climbs to fourth place. In 2012 worldwide 319 600 new cases were registered and about 1/3 of those were diagnosed in Europe, i.e. more than 100 000 cases. Statistics in Bulgaria show an increase in the incidence; the National Cancer Registry reported an incidence rate of 8.6% for 2013, with 1293 new cases; about 300 women die because of this diagnosis every year. Clear-cell endometrial carcinoma (EC) is relatively rare, in 1-6% of cases, with significantly shorter survival rates even for early stages (I and II), compared to the other histological subtypes. CASE REPORT: A 62-year-old patient was subjected to surgery for clear-cell endometrial carcinoma, stage pT1N0M0, FIGO stage IA. Despite radical surgical treatment as per Bulgarian oncological standards - total hysterectomy with bilateral adnexectomy and pelvic lymph node dissection with postoperative radiotherapy - there was a recurrence in a the paraaortic lymph node 15 months later. A second surgical intervention with radical resection of the parailiac metastatic lymph nodes on the left was done with subsequent pseudo-adjuvant platinum-based chemotherapy, and no further relapse has occurred 36 months later. CONCLUSIONS: Clear-cell EC is an aggressive disease with worse prognosis than the endometroid subtype. Therefore, comprehensive surgery and surgical staging should be performed, including pelvic and paraaortic lymph node dissection, regardless of stage.

Pseudomyxoma peritonei of appendiceal origin mimicking ovarian cancer - a case report with literature review.

Pseudomyxoma peritonei (PMP) is a rare and uncommon condition, characterized by the presence of mucinous ascites in the abdominal cavity. The most common cause of PMP is mucinous adenocarcinoma of the appendix, followed by neoplasms of the ovary, endocervix, fallopian tube, alimentary organs, urachus, urinary bladder, lung, mucinous cyst of the spleen, and breast. Herein, we report a case of a 64-year-old postmenopausal woman (gravida 2, para 2) who presented at the department of gynecology with a short history of nausea and abdominal distention. Abdominal and vaginal ultrasonography showed a large amount of free fluid in the pelvis with hyperechoic echogenicity and right pelvic tumor with mixed echogenicity. Computed tomography demonstrated the presence of a heterogeneous, hypodense mass, without contrast enhancement, located on the right side of the pelvis, near the right ovary. Laparotomy was performed. Revision of the abdominal cavity revealed a large amount of yellow gelatinous mucinous ascites - approximately 1.5 l. A tumor (6 x 7 cm in diameter), arising from the appendix and located in the pouch of Douglas near the right ovary, was observed. Histopathology examination revealed poorly differentiated mucinous appendiceal adenocarcinoma, comprising up to 50% signet ring cells. Gastrointestinal tumors such as appendiceal neoplasms combined with PMP may mimic ovarian carcinomas. Computed tomography, abdominal/vaginal ultrasonography and tumor marker levels (carcino-embryonic antigen, carbohydrate antigen 19.9, carbohydrate antigen Ca-125) may establish the diagnosis. A differential diagnosis with appendiceal tumors should be considered for patients with right pelvic masses.

Post-radiation soft tissue damage in endometrial carcinoma: a case report.

INTRODUCTION: Radiotherapy (RT) is a widely used treatment modality of malignant tumours of the uterine cervix and body. There are different techniques to deliver RT to the tumour lesions, including external beam radiation and brachytherapy. All international guidelines recommend RT as treatment modality for many stages of uterine cervical and body cancers because it improves a number of oncological outcomes, such as disease-free and overall survival. However, it may also lead to a number of complications, which can be roughly divided into early or late, depending on the time of their manifestation. The most frequent RT-induced early complications involve the skin and the soft subcutaneous tissues. They typically present as inflammatory conditions of all abdominal wall layers: dermatitis, cellulitis, and necroses of subcutaneous fatty tissue, muscles, or fasciae. CASE REPORT: This paper presents a case report of a 38-year-old woman diagnosed with endometrial cancer (EC). She was initially treated with open abdominal surgery, and subsequently the treatment was continued with external beam adjuvant RT. DISCUSSION: While RT was ongoing, a necrosis of the anterior abdominal wall in the surgical scar developed. It manifested at the end of the RT treatment and is thus regarded as an early complication of the RT for EC. It was successfully managed with surgery, and there was no compromise in the treatment of the oncological condition. CONCLUSIONS: RT-induced necrosis of the surgical scar of the anterior abdominal wall is a very rare complication. Surgical treatment is the main method of treatment of this condition.

Pregnancy and Childbirth in Uterus Didelphys: A Report of Three Cases.

Uterus didelphys is a rare form of congenital anomaly of the Müllerian ducts. The clinical significance of this anomaly of the female reproductive tract is associated with various reproductive issues: increased risk of preterm birth before 37 weeks' gestation, abnormal fetal presentation, delivery by caesarean section, intrauterine fetal growth restriction, low birth weight less than 2500 g, and perinatal mortality. We present three cases of uterus didelphys and full-term pregnancy, which resulted in favorable birth outcomes of live-born, full-term infants. In two of the cases, delivery was performed via Caesarean section: due to lack of labor activity in one of the cases and lack of response to oxytocin stimulation in the second case. The weight of two of the new-born infants was lower than expected for the gestational age.

Discordance for Potter's Syndrome in a Dichorionic Diamniotic Twin Pregnancy-An Unusual Case Report.

INTRODUCTION: Potter's syndrome, also known as Potter's sequence, is an uncommon and fatal disorder. Potter's sequence in a multiple pregnancy is uncommon, and its frequency remains unknown. Worldwide in a diamniotic twin pregnancy, there are only a few cases described. CASE REPORT: We present an unusual case discordance for Potter's syndrome in a dichorionic diamniotic twin pregnancy. Twin A had the typical physical and histological Potter's findings. Twin B had normal respiratory function and normal physical examination findings. There are many controversies about this condition in diamniotic twin pregnancy. One case report concluded that that the presence of a normal co-twin in diamniotic pregnancy prevented the cutaneous features seen in Potter's syndrome and ameliorated the pulmonary complications, whereas two other case studies reported that the affected twin had extrarenal features typical of the syndrome. CONCLUSION: We performed an autopsy and calculated lung weight/body weight ratio to diagnose pulmonary hypoplasia. Histopathologic examination of lungs and kidneys was performed. We concluded that the appearance of extrarenal features in the affected twin depends on the amniocity.

Leiomyosarcoma of the vulva: a case report.

INTRODUCTION: Leiomyosarcoma of the vulva is a rare disease accounting for about 1% of all primary vulvar neoplasia but it is the most common type of vulvar sarcomas. Usually it arises from the smooth muscles, blood vessels, rough ligaments, and erector-pili muscles. No treatment algorithms have been established yet. Tumour excision with clean resection lines is considered sufficient, with radiation therapy applied in certain cases. CASE REPORT: We report a case of a 73-year old patient in whom the disease was manifested by pain syndrome and rapidly growing mass with irregular margins in the symphysis area and satellite nodules. She underwent extensive local excision followed by radiation therapy. DISCUSSION: Isolated cases and limited series of LMS cases have been described in literature. Leiomyosarcoma is most commonly localized to the labia majora, the Bartholin gland area, clitoris and labia minora. It most often affected perimenopausal women but in younger and pregnant patients was described. The diagnosis is not always easy and different histological markers has to be used. There are no definitive therapeutic algorithms due to the rarity of the disease. The management is surgical treatment and the entire tumour must be removed with histologically verified clean resection margins, followed by radiation therapy in some cases. CONCLUSIONS: Vulvar tumours are difficult to distinguish macroscopically. Accurate histological diagnosis allows adequate treatment.

Relation between type of hysterectomy and survival rate in patients with ovarian cancer - single-center study.

AIM OF THE STUDY: To evaluate the survival rate of patients with advanced ovarian carcinoma in relation to the type of surgical intervention - total abdominal hysterectomy with bilateral adnexectomy and omentectomy as a minimal standard compared to extended hysterectomy with a retroperitoneal approach. MATERIAL AND METHODS: The study was implemented based on retrospectively obtained data from 104 patients operated on for advanced epithelial ovarian carcinoma (FIGO stages II-IV) in the period from 2004 to 2012. Total abdominal hysterectomy, bilateral adnexectomy, and omentectomy were performed on 23 patients. Extended hysterectomy with a retroperitoneal approach and varying degrees of peritonectomy, omentectomy, and appendectomy were performed on 74 patients. Seven patients were treated with adnexectomy or biopsy alone. We divided the patients into two groups according to the mode of surgery. The first one comprised the patients who underwent radical hysterectomy and the second one comprised total abdominal hysterectomy plus bilateral adnexectomy. The two groups were examined for their overall survival rate, relapse-free survival rate, and 5-year survival rate. RESULTS: Mean overall survival rate, relapse-free survival rate, and 5-year survival rate in the group with extended hysterectomy were higher compared to the group with total abdominal hysterectomy. CONCLUSIONS: The extended hysterectomy with a retroperitoneal approach with or without systematic lymph node dissection seems to be more appropriate in the surgical treatment of advanced ovarian carcinoma. The procedure is related to the improvement of survival rate as a result of the inclusion of macroscopically invisible lesions in the surgical removal.

Vulvar leukoplakia: therapeutic options.

Vulvar leukoplakia is not a histological diagnosis and involves several diseases. Most commonly, these are vulvar lichen sclerosus and squamous cell hyperplasia of the vulva. These two conditions have similar aetiology, clinical presentation and treatment but different histopathological changes. They both lead to significant impairment of quality of life, risk of malignancy, as well as recurrence after treatment. Treatment of these conditions includes topical corticosteroids as a first-line therapy, but they have their side effects and not all patients are receptive to this therapy. This requires the use of alternative therapeutic options such as topical calcineurin inhibitors, topical and systemic retinoids, other steroid creams, various destructive techniques and, as a last resort, surgical removal of affected tissues. Surgical treatment should be avoided, despite the malignant potential, because of recurrence risk in both diseases New therapeutic approaches are coming into effect in gynaecological practice due to potential risks of the above-mentioned methods. Platelet-rich plasma therapy, ablative and non-ablative laser treatment, and new topical medicines, are some of the new options applied to improve the efficacy of treatment avoiding the side effects of conventional medications. A number of them are still in their initial phase of application and time will tell their effectiveness.

First Case of Chylous Ascites after Laparoscopic Myomectomy: A Case Report with a Literature Review.

Introduction: Chylous ascites is a rare form of ascites characterized by milk-like peritoneal fluid, rich in triglycerides. Clinical signs and symptoms include abdominal distention, pain, nausea, and vomiting. In gynecology, the most common cause for its occurrence is lymph dissection leading to impairment of major lymphatic vessels. There are only a few reported cases of chylous ascites arising after operations for benign diseases. Case report: We report a case of a 46-year-old female patient, who underwent laparoscopy for a myomatous node with chylous ascites occurring on post-surgery Day 2. The ascites was conservatively managed. The exact cause of the chyloperitonitis could not be determined. Conclusion: Although extremely rarely, chylous ascites may also occur in operative interventions for benign diseases in gynecological surgery.

Neglected Anatomical Areas in Ovarian Cancer: Significance for Optimal Debulking Surgery.

Ovarian cancer (OC), the most lethal gynecological malignancy, usually presents in advanced stages. Characterized by peritoneal and lymphatic dissemination, OC necessitates a complex surgical approach usually involving the upper abdomen with the aim of achieving optimal cytoreduction without visible macroscopic disease (R0). Failures in optimal cytoreduction, essential for prognosis, often stem from overlooking anatomical neglected sites that harbor residual tumor. Concealed OC metastases may be found in anatomical locations such as the omental bursa; Morison's pouch; the base of the round ligament and hepatic bridge; the splenic hilum; and suprarenal, retrocrural, cardiophrenic and inguinal lymph nodes. Hence, mastery of anatomy is crucial, given the necessity for maneuvers like liver mobilization, diaphragmatic peritonectomy and splenectomy, as well as dissection of suprarenal, celiac, and cardiophrenic lymph nodes in most cases. This article provides a meticulous anatomical description of neglected anatomical areas during OC surgery and describes surgical steps essential for the dissection of these "neglected" areas. This knowledge should equip clinicians with the tools needed for safe and complete cytoreduction in OC patients.

Internal Iliac Artery Ligation in Obstetrics and Gynecology: Surgical Anatomy and Surgical Considerations.

The internal iliac artery (IIA) is the main arterial vessel of the pelvis. It supplies the pelvic viscera, pelvic walls, perineum, and gluteal region. In cases of severe obstetrical or gynecologic hemorrhage, IIA ligation can be a lifesaving procedure. Regrettably, IIA ligation has not gained widespread popularity, primarily due to limited surgical training and concerns regarding possible complications, including buttock claudication, impotence, and urinary bladder and rectum necroses. Nowadays, selective arterial embolization or temporary balloon occlusion are increasingly utilized alternatives, which can be applied preoperatively or intraoperatively for threatening severe genital or pelvic bleeding. However, IIA ligation retains its relevance, as the previously described procedures are not always available and have limitations. This article provides a step-by-step guide to the IIA ligation procedure and its possible complications. It also includes a detailed description of the anatomy of the IIA and pelvic arterial anastomoses. This review highlights the importance of a thorough understanding of pelvic anatomy as a prerequisite for safe IIA ligation and posits that training in this procedure should be an integral part of obstetrics and gynecology curricula.

Surgical Anatomy of the Liver-Significance in Ovarian Cancer Surgery.

INTRODUCTION: Ovarian cancer is the leading cause of death among all gynecological malignancies. Most patients present with an advanced stage of the disease. The routes of spread in ovarian cancer include peritoneal dissemination, direct invasion, and lymphatic or hematogenous spread, with peritoneal and lymphatic spread being the most common among them. The flow direction of the peritoneal fluid makes the right subphrenic space a target site for peritoneal metastases, and the most frequently affected anatomical area in advanced cases is the right upper quadrant. Complete cytoreduction with no macroscopically visible disease is the most important prognostic factor. METHODS: We reviewed published clinical anatomy reports associated with surgery of the liver in cases of advanced ovarian cancer. RESULTS: The disease could disseminate anatomical areas, where complex surgery is required-Morrison's pouch, the liver surface, or porta hepatis. The aim of the present article is to emphasize and delineate the gross anatomy of the liver and its surgical application for oncogynecologists. Moreover, the association between the gross and microscopic anatomy of the liver is discussed. Additionally, the vascular supply and variations of the liver are clearly described. CONCLUSIONS: Oncogynecologists performing liver mobilization, diaphragmatic stripping, and porta hepatis dissection must have a thorough knowledge of liver anatomy, including morphology, variations, functional status, potential diagnostic imaging mistakes, and anatomical limits of dissection.