2F30.3

ICD-11 MMS 2026-01

Benign phyllodes tumour of breast

Description

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.

Index terms

  • Benign phyllodes tumour of breast
  • Phyllodes tumour of breast
  • benign phyllodes tumour
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  • benign phyllodes tumour of unspecified site
  • fibroadenoma phyllodes of unspecified site

Exclusions from above levels

  • 2E80.0 – Lipoma
  • http://id.who.int/icd/entity/1435238626 – Benign neoplasm of skin of breast

Sibling codes

  • 2F30.0 – Tubular adenoma of breast
  • 2F30.1 – Lactating adenoma of breast
  • 2F30.2 – Intraductal papilloma of breast
  • 2F30.4 – Fibromatosis of breast
  • 2F30.5 – Fibroadenoma of breast
  • 2F30.6 – Extensive adenomatosis of nipple
  • 2F30.7 – Benign neoplasm of the nipple
  • 2F30.Y – Other specified benign neoplasm of breast
  • 2F30.Z – Benign neoplasm of breast, unspecified

Foundation entity

Benign phyllodes tumour of breast – http://id.who.int/icd/entity/827143668

Allowed postcoordination axes

Part of: 2F30: Benign neoplasm of breast › 02: Neoplasms