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metaplastic papillary tumor

Tuesday 6 November 2018

Fallopian metaplastic papillary tumour

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Definition: The metaplastic papillary tumor is a rare, benign, incidental lesion that is usually found during pregnancy or post-partum.

Microscopy

- Eosinophilic or mucinous papillae with small cysts
- Large vesicular nuclei with minimal stratification, no crowding or atypia
- Rare mitoses

Differential diagnosis

- tubal carcinoma
- STIC

Open references

- Fallopian metaplastic papillary tumour: an atypical transdifferentiation of the tubal epithelium? Salazar MF, Moscoso IE, Vázquez LT, López García NL, Escalante Abril PA. J Pathol Transl Med. 2015 Mar;49(2):148-55. doi : 10.4132/jptm.2014.10.15 PMID: 25812736