Müllerianosis is a rare tumor-like entity consisting of an admixture of endocervical, tubaric or endometrial epithelium, with at least two epithelial types present to qualify for the diagnosis of Müllerianosis. The lesion was first described in 1996 by Clement and Young.
Müllerianosis of the urinary tract is a rare lesion and it occurs in approximately 1% of women with endometriosis; the bladder is the organ most frequently involved (Raspollini and Lopez-Beltran 2019). Its pathogenesis is still a source of debate ranging between an embryological origin, metaplasia, and implantation during surgery.
Müllerianosis affects mainly reproductive age women.
It is a finding mainly in women. Uncommon cases may occur in male patients under long-term estrogen therapy.
This lesion occurs mainly in the dome or posterior wall of the urinary bladder.
References and Further Reading
- Raspollini, M. R., & Lopez-Beltran, A. (Eds.). (2019). Gynecologic and urologic pathology: Similarities, differences and challenges. Cambridge: Cambridge University Press. https://doi.org/10.1017/9781316756423. Chapter 26 – Mullerian Lesions of the Bladder: Endometriosis, Endosalpingiosis, Endocervicosis, and Mullerianosis.CrossRefGoogle Scholar