ICD-11 classes
02 Neoplasms
Benign neoplasms, except of lymphoid, haematopoietic,...
Benign non-mesenchymal neoplasms
2F30 — Benign neoplasm of breast
2F30.3 — Benign phyllodes tumour of breast

ICD-11 2F30.3 — Benign phyllodes tumour of breast

A usually unilateral, benign and well circumscribed biphasic neoplasm that arises from the breast. It usually affects middle-aged women. It is characterised by the presence of a double layer of epithelial cells that are arranged in clefts, surrounded by a cellular, monomorphic spindle cell mesenchymal component. Mitoses are rare. Necrotic changes may be present in large tumours.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.

The diagnosis is coded elsewhere:

• Benign neoplasm of breast #19538