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Abstract
Canal of Nuck abnormality is a rare surgical condition. The pathologies are mostly encountered in young girls, less than five years of age. The incidence is even less in adults. Various pathologic conditions related to the failure of processus vaginalis obliteration can occur, involving herniation of intraabdominal structures including intestinal and genital contents such as the uterus, fallopian tube, and ovary and hydrocele of the canal of Nuck. According to its rarity, hydrocele of canal of Nuck is often misdiagnosed for common groin masses. This review summarizes and simplifies embryology, the pathophysiology of the canal of Nuck abnormalities, imaging findings, and treatment options with emphasis on the hydrocele.
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Dalkalitsis A, Salta S, Tsakiridis I, Dagklis T, Kalogiannidis I, Mamopoulos A, Daniilidis A, Athanasiadis A, Navrozoglou I, Paschopoulos M, Vatopoulou A, Kosmas I. Inguinal endometriosis: A systematic review. Taiwan J Obstet Gynecol 2022; 61:24-33. [PMID: 35181041 DOI: 10.1016/j.tjog.2021.11.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2021] [Indexed: 11/20/2022] Open
Abstract
Inguinal endometriosis is a very rare entity with uncertain pathophysiology, that poses several diagnostic and therapeutic challenges. This study aimed to summarize published literature on the diagnosis and treatment of this condition. Thus, a systematic literature search was conducted in PubMed/MEDLINE, Scopus and the Cochrane Library. An effort was made to numerically analyze all parameters included in case reports and retrospective analyses, as well. The typical and atypical features of this condition, investigations used, type of treatment and histopathology were recorded. More specifications about the surgical treatment, such as operations previously performed, type of surgery and treatment after surgery have been acknowledged. Other sites of endometriosis, the presence of pelvic endometriosis and the follow-up and recurrence have been also documented. Overall, the search yielded 61 eligible studies including 133 cases of inguinal endometriosis. The typical clinical presentation includes a unilateral inguinal mass, with or without catamenial pain. Transabdominal or transvaginal ultrasound was typically used as the first line method of diagnosis. Groin incision and exploratory surgery was the treatment indicated by the majority of the authors, while excision of part of the round ligament was reported in about half of the cases. Chemotherapy and radiotherapy were initiated in cases of coexisting endometriosis-related neoplasia. Inguinal recurrence or malignant transformation was rarely reported. The treatment of inguinal endometriosis is surgical and a long-term follow-up is needed. More research is needed on the effectiveness of suppressive hormonal therapy, recurrence rate and its relationship with endometriosis-associated malignancies.
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Affiliation(s)
- Alexandros Dalkalitsis
- Department of Obstetrics and Gynecology, Genetics and IVF Unit, Medical School, Ioannina University, Ioannina, Greece
| | - Styliani Salta
- University Hospitals of Leicester, Haemophilia Centre, Leicester Royal Infirmary, Leicester, UK
| | - Ioannis Tsakiridis
- Third Department of Obstetrics and Gynaecology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Themistoklis Dagklis
- Third Department of Obstetrics and Gynaecology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Kalogiannidis
- Third Department of Obstetrics and Gynaecology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Apostolos Mamopoulos
- Third Department of Obstetrics and Gynaecology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Angelos Daniilidis
- Second Department of Obstetrics and Gynaecology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Apostolos Athanasiadis
- Third Department of Obstetrics and Gynaecology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Iordanis Navrozoglou
- Department of Obstetrics and Gynecology, Genetics and IVF Unit, Medical School, Ioannina University, Ioannina, Greece
| | - Minas Paschopoulos
- Department of Obstetrics and Gynecology, Genetics and IVF Unit, Medical School, Ioannina University, Ioannina, Greece
| | - Anastasia Vatopoulou
- Third Department of Obstetrics and Gynaecology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Kosmas
- Department of Obstetrics and Gynecology, Ioannina State General Hospital G. Chatzikosta, Ioannina, Greece.
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Yang Y, Zhao X, Huang Y. Renal Endometriosis Mimicking Cystic Renal Tumor: Case Report and Literature Review. Front Med (Lausanne) 2021; 8:684474. [PMID: 34235162 PMCID: PMC8255484 DOI: 10.3389/fmed.2021.684474] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/27/2021] [Indexed: 11/16/2022] Open
Abstract
Background: Endometriosis mainly affects female pelvic tissues and organs, and the presence of endometriosis in the kidney is extremely rare. Case Presentation: We report a case of a 48-year-old woman who presented with intermittent hematuria. She was found to have a cystic mass on renal ultrasonography, and contrast-enhanced computed tomography (CT) showed slight enhancement of the cystic wall and septa. These findings were indicative of cystic renal tumor. The patient subsequently underwent partial right nephrectomy. Histopathology revealed endometriosis of the right renal parenchyma. The patient recovered well and had no evidence of a recurrent renal mass at the 3 months' follow up. Conclusion: The possibility of renal endometriosis should be considered in a female patient with a cystic renal mass and clinical symptoms related to the menstrual cycle.
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Affiliation(s)
- Ye Yang
- Department of Ultrasound, Sheng Jing Hospital of China Medical University, Shenyang, China
| | - Xinxin Zhao
- Department of Hospice, Sheng Jing Hospital of China Medical University, Shenyang, China
| | - Ying Huang
- Department of Ultrasound, Sheng Jing Hospital of China Medical University, Shenyang, China
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Prodromidou A, Pandraklakis A, Rodolakis A, Thomakos N. Endometriosis of the Canal of Nuck: A Systematic Review of the Literature. Diagnostics (Basel) 2020; 11:diagnostics11010003. [PMID: 33375037 PMCID: PMC7821999 DOI: 10.3390/diagnostics11010003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/16/2020] [Accepted: 12/20/2020] [Indexed: 12/11/2022] Open
Abstract
Endometriosis is a common benign gynecological condition defined as the presence of endometrial tissue in tissues outside the uterine cavity. Apart from the common sites of endometriosis, rare sites other have also been reported including the liver, the thoracic cavity, the muscles, nerves, and more rarely in a patent Nuck canal. We aim to evaluate the clinical presentation, diagnostic features, and management of the Nuck endometriosis. A meticulous search of three electronic databases was performed until May 2020 for articles reporting cases of Nuck endometriosis. A total of 36 patients from 20 studies were analyzed. Median age of patients was 36 years with 33 women being of reproductive age. A right-sided lesion was identified in 30 cases (83.3%), while all patients suffer from a groin mass with cyclic pain in a proportion of 22%. All the patients finally underwent surgery for investigation of the lesion and fixation of the defect. Five cases of malignancy were detected at final pathology. All of them were alive with a median reported overall survival of 37 months. Nuck endometriosis should be included in the differential diagnosis of female patients with groin swelling. An evaluation by a gynecologist is important when endometriosis is suspected.
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Hydrocele of the Canal of Nuck with Endometriosis: Right-Side Dominance Confirmed by Literature Review and Statistical Analysis. Case Rep Pathol 2020; 2020:2567267. [PMID: 32695544 PMCID: PMC7368960 DOI: 10.1155/2020/2567267] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 04/13/2020] [Indexed: 12/03/2022] Open
Abstract
Introduction. The canal of Nuck is an embryological remnant of the peritoneal pouch that extends into the labium majus of women. Hydrocele is the most common presentation, but only a small number of cases are reported in association with endometriosis. Case Presentation. The patient is a 45-year-old woman who presented with left inguinal mass with persistent pain. Computed tomography (CT) and magnetic resonance imaging (MRI) revealed a 30 mm cystic mass, and a hydrocele of the canal of Nuck (HCN) was suspected. The excised mass was a cyst containing yellow-tan serous fluid, and the cyst wall was lined by mesothelium. The morphology was consistent with conventional HCN. However, since several foci of endometrial-like epithelium and stroma were identified beneath the mesothelium, the mass was diagnosed with HCN with endometriosis (EM-HCN). Discussion. Right-side dominance of EM-HCN is suggested by several authors, but a thorough review has never been performed. For the first time, we reviewed the literature and statistically confirmed that EM-HCNs dominantly occur on the right side compared to those without endometriosis. We consider that this supports the theory that endometriosis derives from retrograde menstruation of endometrial tissue through fallopian tubes. When endometriosis is discovered in HCN, the clinician should be aware of the possibility of pelvic endometriosis.
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Prodromidou A, Paspala A, Schizas D, Spartalis E, Nastos C, Machairas N. Cyst of the Canal of Nuck in adult females: A case report and systematic review. Biomed Rep 2020; 12:333-338. [PMID: 32346477 DOI: 10.3892/br.2020.1295] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 03/03/2020] [Indexed: 01/03/2023] Open
Abstract
Defects in the Canal of Nuck are rare abnormalities of the female genitalia, which are typically detected and repaired in young age. In the present report, a case of a Nuck cyst in a 40-year old female patient is described. Additionally, the current literature concerning cases of women with hydrocele of Nuck canal was systematically reviewed. A total of 16 case reports of 16 patients with Nuck hydrocele (mean age of 35.18 years), have been reported to date. A right inguinal mass was noted in 13 patients (81.3%) whereas in 3 patients a left-sided mass was noted. The surgical approach was open in 13 cases and laparoscopic in 3 cases. Two cases underwent hydrocelectomy and inguinal ring ligation, whereas in 7 cases a simple cystectomy was performed. In 2 cases the round ligament was excised along with the hydrocele. In one of these 2, ligamentum rotundum necrosis and presence of a haemorrhagic cyst of the canal of Nuck were identified. Hernia repair and hydrocelectomy was performed in 5 cases. A cyst of the Canal of Nuck is relatively rare, but should be considered during the diagnosis of inguinal masses in female patients.
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Affiliation(s)
- Anastasia Prodromidou
- Department of Surgery, Division of Surgical Oncology, Metaxa Cancer Memorial Hospital, Piraeus 18573, Greece
| | - Anna Paspala
- Third Department of Surgery, Attiko University Hospital, National and Kapodistrian University of Athens, Athens 12462, Greece
| | - Dimitrios Schizas
- First Department of Surgery, Laiko General Hospital, Athens 11527, Greece
| | - Eleftherios Spartalis
- Laboratory of Experimental Surgery and Surgical Research, National and Kapodistrian University of Athens, Athens 11527, Greece
| | - Constantinos Nastos
- Third Department of Surgery, Attiko University Hospital, National and Kapodistrian University of Athens, Athens 12462, Greece
| | - Nikolaos Machairas
- Third Department of Surgery, Attiko University Hospital, National and Kapodistrian University of Athens, Athens 12462, Greece
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Okoshi K, Mizumoto M, Kinoshita K. Endometriosis-associated hydrocele of the canal of Nuck with immunohistochemical confirmation: a case report. J Med Case Rep 2017; 11:354. [PMID: 29262869 PMCID: PMC5738847 DOI: 10.1186/s13256-017-1522-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 11/21/2017] [Indexed: 11/10/2022] Open
Abstract
Background The canal of Nuck is an embryological vestige of the processus vaginalis, and presents a potential site for endometriosis seeding. Hydroceles in this region are a rare cause of inguinal swelling in females. In addition, endometriosis localized to the canal of Nuck is exceedingly rare. Case presentation A 44-year-old Japanese woman presented with a painful mass overlying her right pubis. She underwent surgery to completely excise the mass. During surgery, division of the external oblique aponeurosis revealed a cyst that occupied the inguinal canal and it adhered to the transverse fascia, inguinal ligament, and pubic bone. The cyst was dissected from the round ligament, and the defect in the internal inguinal ring was repaired and reinforced with mesh. On macroscopic examination, the cyst had a heterogeneous fibrous aspect with dark brown inclusions. Microscopic examination revealed that the cyst was tortuous, lined by mesothelial-like cells, and accompanied by partial subcapsular hemorrhage. Endometrium-like tissue was observed in the cystic wall. Immunohistochemical staining for podoplanin confirmed the mesothelial origin of the cyst-lining cells. The epithelial cells and stromal cells were positive for estrogen receptors. Conclusions In this case of an endometriosis-associated hydrocele of the canal of Nuck, the mesothelial origin of the cyst-lining cells and endometriosis were confirmed by positive immunohistochemical staining for podoplanin and estrogen receptors, respectively. We determined that hydrocele resection and reinforcement of the anterior inguinal canal wall (if necessary) are appropriate treatments for this condition.
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Affiliation(s)
- Kae Okoshi
- Department of Surgery, The Japan Baptist Hospital, 47 Yamanomoto-cho, Kitashirakawa, Sakyo-ku, Kyoto, 606-8273, Japan.
| | - Masaki Mizumoto
- Department of Surgery, The Japan Baptist Hospital, 47 Yamanomoto-cho, Kitashirakawa, Sakyo-ku, Kyoto, 606-8273, Japan
| | - Koichi Kinoshita
- Department of Surgery, The Japan Baptist Hospital, 47 Yamanomoto-cho, Kitashirakawa, Sakyo-ku, Kyoto, 606-8273, Japan
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Laparoscopic repair of indirect inguinal hernia containing endometriosis, ovary, and fallopian tube in adult woman without genital anomalies. Obstet Gynecol Sci 2014; 57:557-9. [PMID: 25469350 PMCID: PMC4245355 DOI: 10.5468/ogs.2014.57.6.557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/10/2014] [Accepted: 07/15/2014] [Indexed: 11/08/2022] Open
Abstract
Indirect inguinal hernia containing an ovary is a rare condition, especially in adult women who do not have any other genital tract anomalies. In addition, inguinal hernia containing an ovary and endometriosis is exceedingly rare. In the present report, we describe a case of indirect inguinal hernia containing an ovary, fallopian tube, and endometriosis. Laparoscopic repair was performed successfully using polypropylene mesh for the treatment of the inguinal hernia.
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