A Rare Case of a Urachal Mucinous Cystic Tumour of Low Malignant Potential

Abstract

A persistently patent urachal remnant can lead to neoplastic transformation. Urachal tumours occur most commonly as glandular
neoplasms which are classified as benign, non-cystic or cystic. However, the literature on cystic urachal tumours is extremely limited.
Here, we describe a case of a 59-year-old male who presented with a mucinous cystic tumour of low malignant potential of
the urachus and review the current literature. In addition, we summarise the classification system on cystic urachal tumours which
has been proposed by Amin et al and modified in the World Health Organisation (WHO) 2016 Classification of Tumours of the
Urinary System and Male Genital Organs.