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Primary peritoneal mucinous cystadenocarcinoma mimicking possible recurrent ovarian mucinous cystadenoma: coincidental pathology or a spectrum of disease?
  1. Claire Filippini1,
  2. Sarah Smyth2,
  3. Hooman Soleymani Majd2 and
  4. Catherine Johnson1
  1. 1Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
  2. 2Department of Gynaecological Oncology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
  1. Correspondence to Dr Hooman Soleymani Majd; hooman_sm{at}


We present the case of a 32-year-old woman with a previous surgical history of benign mucinous cystadenoma resected in 2012 who underwent magnetic resonance cholangiopancreatography following her second pregnancy in 2020. This demonstrated a large cystic mass in the left subdiaphragmatic space. Histopathology confirmed a well-differentiated primary peritoneal mucinous cystadenocarcinoma displaying cells of a Mullerian origin. We subsequently discuss the aetiology of these conditions separately and explore the possibility of a connection between the two regarding origin or potential malignant transformation that may otherwise have occurred coincidentally in this young patient. We also acknowledge a paucity of evidence regarding subsequent management strategies.

  • cancer - see oncology
  • gynecological cancer
  • radiology
  • surgical oncology

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  • Contributors CF and CJ conceived the case report. SS and HSM liaised with the patient and provided case details. CF wrote the case report. SS provided advice on draft manuscripts. All authors reviewed the final manuscript.

  • 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.

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