Wikipedia's first sentence called it “genetic condition characterized by prenatal growth delay and a butterfly rash in the mid- face region”. Today it says “rare autosomal recessive genetic disorder characterized by short stature”. Sections present on October 6, 2023 no longer exist: “Presentation”.
Measured, not asserted. Every count, date and revision on this page was taken from Wikipedia's own history and checked against the live article. The words quoted are theirs.
Machine-checked against the full current article on 2026-08-03.
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The opening as it read in 2005
Bloom syndrome is a genetic condition characterized by prenatal growth delay and a butterfly rash in the mid- face region. The most serious characteristics of this condition are a predisposition to cancer and infections . Intelligence is unsually not affected in this disorder, although mild mental retardation has been seen in some cases. No effective treatment is available at this time. Death from cancer usually occurs before age 30. Bloom syndrome is inherited in an autosommal recessive fashion. Both parents must be carriers in order for a child to be affected. The carrier frequency in individuals of Eastern European Ashkenazi ancestry is about 1/100. If both parents are carriers, there is a one in four, or 25%, chance with each pregnancy for an affected child. Genetic counseling and genetic testing is recommended for families who may be carriers of bloom syndrome.1
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 16963203.
The opening as it stood in 2010 10 passages from the previous snapshot no longer appear
Medical condition Bloom syndrome (BLM), also known as Bloom–Torre–Machacek syndrome , is a rare autosomal recessive chromosomal disorder characterized by a high frequency of breaks and rearrangements in an affected person's chromosomes .The condition was discovered and first described by dermatologist Dr.Andrews' Diseases of the Skin: Clinical Dermatology ."A rapid method for detecting the predominant Ashkenazi Jewish mutation in the Bloom's syndrome gene".PMID 9482582 . : Cite has empty unknown parameter: |month= ( help ) CS1 maint: multiple names: authors list ( link ) Bloom D (1954)."Congenital telangiectatic erythema resembling lupus erythematosus in dwarfs; probably a syndrome entity".American journal of diseases of children . 88 (6): 754– 8.
Red text was written in or rewritten since the previous snapshot. Their copy is revision 364762957.
The opening as it stood in 2015 3 passages from the previous snapshot no longer appear
Medical condition Bloom syndrome (often abbreviated as BS in literature), also known as Bloom–Torre–Machacek syndrome , is a rare autosomal recessive disorder characterized by short stature, predisposition to the development of cancer and genomic instability.BS is caused by mutations in the BLM gene leading to mutated DNA helicase protein formation.Cells from a person with Bloom syndrome exhibit a striking genomic instability that includes excessive crossovers between homologous chromosomes and sister chromatid exchanges (SCEs).The condition was discovered and first described by New York dermatologist Dr.Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). "A rapid method for detecting the predominant Ashkenazi Jewish mutation in the Bloom's syndrome gene". Journal of Cell Biology . "Congenital telangiectatic erythema resembling lupus erythematosus in dwarfs; probably a syndrome entity".
Red text was written in or rewritten since the previous snapshot. Their copy is revision 669195336.
The opening as it stood in 2020 2 passages from the previous snapshot no longer appear
Medical condition Bloom syndrome (often abbreviated as BS in literature) is a rare autosomal recessive genetic disorder characterized by short stature, predisposition to the development of cancer, and genomic instability.BS is caused by mutations in the BLM gene which is a member of the RecQ DNA helicase family.Mutations in other members of this family, namely WRN and RECQL4, are associated with the clinical entities Werner syndrome and Rothmund–Thomson syndrome , respectively.More broadly, Bloom syndrome is a member of a class of clinical entities that are characterized by chromosomal instability, genomic instability, or both and by cancer predisposition. Cells from a person with Bloom syndrome exhibit a striking genomic instability that includes excessive crossovers between homologous chromosomes and sister chromatid exchanges (SCEs). The condition was discovered and first described by New York dermatologist Dr. Bloom syndrome has also appeared in the older literature as Bloom–Torre–Machacek syndrome . "Congenital telangiectatic erythema resembling lupus erythematosus in dwarfs; probably a syndrome entity". Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.).
Red text was written in or rewritten since the previous snapshot. Their copy is revision 962718963.
The opening as it stood in 2025 1 passage from the previous snapshot no longer appear
Genetic disorder Medical condition Bloom syndrome (often abbreviated as BS in literature) is a rare autosomal recessive genetic disorder characterized by short stature, predisposition to the development of cancer , and genomic instability. BS is caused by mutations in the BLM gene which is a member of the RecQ DNA helicase family. Mutations in genes encoding other members of this family, namely WRN and RECQL4 , are associated with the clinical entities Werner syndrome and Rothmund–Thomson syndrome , respectively. More broadly, Bloom syndrome is a member of a class of clinical entities that are characterized by chromosomal instability, genomic instability, or both, and cancer predisposition. Cells from a person with Bloom syndrome exhibit a striking genomic instability that includes excessive crossovers between homologous chromosomes and sister chromatid exchanges (SCEs). David Bloom discovered and first described the condition in 1954. Bloom syndrome has also appeared in the older literature as Bloom–Torre–Machacek syndrome . "Congenital telangiectatic erythema resembling lupus erythematosus in dwarfs; probably a syndrome entity". Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.).
Red text was written in or rewritten since the previous snapshot. Their copy is revision 1294138485. This is our newest snapshot; the live article may have moved again since.
Today
Wikipedia's first sentence called it “genetic condition characterized by prenatal growth delay and a butterfly rash in the mid- face region”. Today it says “rare autosomal recessive genetic disorder characterized by short stature”. Sections present on October 6, 2023 no longer exist: “Presentation”. Read the current article and compare.
2005
2010
2015
2020
Oct '23
2025
Counts in the opening at each snapshot. Green: the word gained ground. Red: it was cut. Grey: no change.
What Wikipedia says this is
Every article opens by defining its subject. This one was redefined since 2005, and today's defining sentence is their current revision.
Then
genetic condition characterized by prenatal growth delay and a butterfly rash in the mid- face region
Now
rare autosomal recessive genetic disorder characterized by short stature
Sections that no longer exist
Present on October 6, 2023, absent today, with no near-matching heading in the current article and the article shorter overall, so this is not a renamed heading or a topic absorbed into a fuller treatment. 1 section of 400 characters or more gone since October 6 2023, with the article 46 characters shorter.
Presentation
Struck red text is no longer in the article; dotted amber text was rewritten. Every revision id links to Wikipedia's copy; the text shown is our own saved copy. Data: /data. Wikipedia text is CC BY-SA; quoted for the record; not affiliated with Wikipedia.
