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Pelvic splenosis mimicking a suspicious adnexal mass
  1. Clarisse Peter1,
  2. Jean-Christophe Tille2,
  3. Diomidis Botsikas3 and
  4. Patrick Petignat1
  1. 1Department of Paediatrics, Gynaecology and Obstetrics, Hôpitaux Universitaires Genève, Geneva, Switzerland
  2. 2Pathology and Immunology, University Hospitals Geneva, Geneve, Switzerland
  3. 3Division of Radiology, University Hospitals Geneva, Geneva, Switzerland
  1. Correspondence to Dr Clarisse Peter; clarisse.peter{at}


A 58-year-old asymptomatic woman was referred to our gynecologic oncology unit for the management of a left adnexal mass found during a routine gynecologic examination. Her personal history included an emergency splenectomy at the age of 4 years old, following traumatic splenic laceration after a car accident. The patient’s work-up (including transvaginal ultrasound and MRI) confirmed a pelvic solid mass, which was reported as suspicious for malignancy and classified as Ovarian-Adnexal Reporting & Data System-MRI 5. An exploratory laparoscopy was performed, showing a reddish blue lesion located at the left broad ligament. Histologic analysis showed the presence of splenic tissue and normal adnexa. The postoperative follow-up was uneventful.

Pelvic splenosis is a challenging diagnosis rarely made preoperatively due to concern for malignancy. In the presence of a pelvic mass, the collection of a detailed patient’s history, including information about previous splenic rupture, might raise suspicion for pelvic splenosis.

  • gynecological cancer
  • radiology
  • obstetrics
  • gynaecology and fertility
  • pathology

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  • Contributors PP was the surgeon, CP was the assisting surgeon, DB was the radiologist who managed and described the medical imaging, J-CT was the pathologist who analysed and described the sample. CP wrote the manuscript and all four authors approved it for publication.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.