Ovarian mucinous and seromucinous neoplasms: problematic aspects and modern diagnostic approach

The morphological spectrum of primary ovarian mucinous and seromucinous tumours is broad, and presents an array of diagnostic challenges, many unique to these tumour types. This reflects the heterogeneous nature of these lesions, their varied histogenesis and evolving classification systems over rec...

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Bibliographic Details
Published in:Histopathology 2022-01, Vol.80 (2), p.255-278
Main Authors: Talia, Karen L, Parra‐Herran, Carlos, McCluggage, W Glenn
Format: Article
Language:English
Subjects:
Adenocarcinoma, Mucinous - diagnosis
Adenocarcinoma, Mucinous - metabolism
Adenocarcinoma, Mucinous - pathology
Biomarkers, Tumor
borderline
carcinoma
Classification systems
Differential diagnosis
Female
Histogenesis
Humans
Immunohistochemistry
molecular pathology
mucinous tumour
Ovarian Neoplasms - diagnosis
Ovarian Neoplasms - metabolism
Ovarian Neoplasms - pathology
Ovaries
ovary
Ovary - metabolism
Ovary - pathology
seromucinous
Tumors
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Summary:The morphological spectrum of primary ovarian mucinous and seromucinous tumours is broad, and presents an array of diagnostic challenges, many unique to these tumour types. This reflects the heterogeneous nature of these lesions, their varied histogenesis and evolving classification systems over recent decades, with further modification to the seromucinous category incorporated in the recently published 5th edition of the World Health Organisation (WHO) Classification of female genital tumours. In this review we provide an update on the classification of these neoplasms and discuss their histogenesis and diverse morphology, focusing on areas which are diagnostically problematic. We also cover tumour grading, differential diagnosis, immunohistochemistry, the recent elucidation of the molecular underpinnings of ovarian mucinous neoplasia and discuss the gross and intra‐operative handling of these tumours. A number of diagnostic issues remain unresolved, highlighting the importance of further research on this front, as well as a multidisciplinary approach in the care of patients with ovarian mucinous and seromucinous neoplasia.
ISSN:0309-0167
1365-2559
DOI:10.1111/his.14399