Diseases

Multiple Primary Neoplasms

Two or more abnormal growths of tissue occurring simultaneously and presumed to be of separate origin. The neoplasms may be histologically the same or different, and may be found in the same or different sites.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Two or more abnormal growths of tissue occurring simultaneously and presumed to be of separate origin. The neoplasms may be histologically the same or different, and may be found in the same or different sites.

MeSH Record

Classification

Broader headings

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MeSH Record

See Also

MeSH Record

Synonyms

12 entry terms
  • Multiple Primary Neoplasms, Synchronous
  • Neoplasms, Multiple Primary
  • Neoplasms, Synchronous
  • Neoplasms, Synchronous Multiple Primary
  • Synchronous Multiple Primary Neoplasms
  • Synchronous Neoplasms
  • Multiple Primary Neoplasm
  • Neoplasm, Multiple Primary
  • Neoplasm, Synchronous
  • Primary Neoplasm, Multiple
  • Primary Neoplasms, Multiple
  • Synchronous Neoplasm

MeSH Record

Aspects Covered

39 allowable subheadings

Indexed with the subheadings blood, blood supply, cerebrospinal fluid, chemically induced, chemistry, classification, complications, congenital, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, secondary, surgery, therapy, ultrastructure, urine, veterinary, virology.

MeSH Record

Indexing Annotation

2 or more neoplasms occurring simultaneously: do not confuse with NEOPLASMS, SECOND PRIMARY, a neoplasm following an earlier neoplasm but not its metastasis; coordinate with histological type(s) (IM) & each precoordinated organ/neoplasm term(s) (IM); do not use /compl with specific multiple neoplasm terms to show multiplicity; differentiate from NEOPLASM METASTASIS & NEOPLASM RECURRENCE, LOCAL: Manual 24.4.1.5, 24.4.1.6; MULTIPLE ENDOCRINE NEOPLASIA & its specifics are also available; DF: NEOPL MULTIPLE PRIMARY

MeSH Record

History Note

65

MeSH Hierarchy

Tree Number

  1. C04w.651

MeSH Record

NLM Classification

QZ 200

AMA Style

References

  1. National Library of Medicine. Multiple Primary Neoplasms. Medical Subject Headings (MeSH). 2026. Unique ID D009378. http://id.nlm.nih.gov/mesh/2026/D009378
  2. Multiple Primary Neoplasms. In: Wikidata. https://www.wikidata.org/wiki/Q11793793