PPB
Also written as: PPB — Pleuropulmonary Blastoma
Abbreviation for pleuropulmonary blastoma, a rare malignant intrathoracic tumour of early childhood.
Full Definition
PPB is the accepted abbreviation for pleuropulmonary blastoma in pediatric oncology and pathology literature. It is used after the full term has been introduced. Editors should be alert to context-dependent ambiguity, as PPB may also stand for 'parts per billion' in laboratory science documents. In clinical pediatric pathology reports, PPB unambiguously refers to the thoracic tumour. The abbreviation should always be accompanied by the histological type (PPB Type I, II, or III) when a specific diagnosis is being conveyed.
Usage
Usage note: Lowercase 'ppb' means parts per billion; capitalised 'PPB' in pediatric pathology means pleuropulmonary blastoma. Context must be verified before editing.
In Context
- "The tumour registry recorded the diagnosis as PPB Type III, reflecting the purely solid histological pattern." — Tumour registry entry
- "Authors must define PPB at first use to prevent confusion with 'parts per billion' in multidisciplinary journals." — Journal submission guidelines