Diseases

Thymus Hyperplasia

Enlargement of the thymus. A condition described in the late 1940's and 1950's as pathological thymic hypertrophy was status thymolymphaticus and was treated with radiotherapy. Unnecessary removal of the thymus was also practiced. It later became apparent that the thymus undergoes normal physiological hypertrophy, reaching a maximum at puberty and involuting thereafter. The concept of status thymolymphaticus has been abandoned. Thymus hyperplasia is present in two thirds of all patients with myasthenia gravis. (From Segen, Dictionary of Modern Medicine, 1992; Cecil Textbook of Medicine, 19th ed, p1486)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Enlargement of the thymus. A condition described in the late 1940's and 1950's as pathological thymic hypertrophy was status thymolymphaticus and was treated with radiotherapy. Unnecessary removal of the thymus was also practiced. It later became apparent that the thymus undergoes normal physiological hypertrophy, reaching a maximum at puberty and involuting thereafter. The concept of status thymolymphaticus has been abandoned. Thymus hyperplasia is present in two thirds of all patients with myasthenia gravis. (From Segen, Dictionary of Modern Medicine, 1992; Cecil Textbook of Medicine, 19th ed, p1486)

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Synonyms

10 entry terms
  • Hyperplasia of Thymus Gland
  • Thymic Hyperplasia
  • Gland Hyperplasia, Thymus
  • Gland Hyperplasias, Thymus
  • Hyperplasia, Thymic
  • Hyperplasia, Thymus
  • Hyperplasias, Thymic
  • Thymic Hyperplasias
  • Thymus Gland Hyperplasia
  • Thymus Gland Hyperplasias

MeSH Record

Aspects Covered

35 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, 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, surgery, therapy, urine, veterinary, virology.

MeSH Hierarchy

Tree Number

  1. C15.604w.816w

MeSH Record

NLM Classification

WK 400

AMA Style

References

  1. National Library of Medicine. Thymus Hyperplasia. Medical Subject Headings (MeSH). 2026. Unique ID D013952. http://id.nlm.nih.gov/mesh/2026/D013952
  2. Thymus Hyperplasia. In: Wikipedia. https://en.wikipedia.org/wiki/Thymus_hyperplasia
  3. Thymus Hyperplasia. In: Wikidata. https://www.wikidata.org/wiki/Q7799652