Rothmund–Thomson syndrome

Top

Home > Library > Miscellaneous > Wikipedia

Rothmund-Thomson syndrome
Classification and external resources
Panel showing some clinical features of the RTS syndrome. A) Chronic phase of cheek poikiloderma (4-year-old girl). B) Poikiloderma with alopecia (21-year-old boy). C) Poikiloderma. D) Poikiloderma sparing the trunk (courtesy of Professor M. Paradisi, Rome). E) Photo distributed poikiloderma and valgism of the knees. F) Thumb aplasia (patient B). G) Bone defect seen by X-Rays: cystic-like destructive lesion of the humerus (distal epiphysis) without apparent solution of continuity of the cortical bone (patient E).
ICD-10	Q82.8 (ILDS Q82.852)
ICD-9	757.33
OMIM	268400
DiseasesDB	29891
eMedicine	derm/379
MeSH	D011038

Rothmund–Thomson syndrome (RTS), also known as poikiloderma atrophicans with cataract or poikiloderma congenitale,^[1]^[2] is a rare autosomal recessive^[3]^[4] skin condition originally described by August von Rothmund (1830–1906) in 1868. Matthew Sydney Thomson (1894–1969) published further descriptions in 1936.

There have been several reported cases associated with osteosarcoma. A hereditary genetic basis, mutations in the DNA Helicase RECQL4 gene, has been implicated in the syndrome.^[1]^[5]^[6]

Contents

1 Characteristics
2 Cause and Genetics
3 See also
4 References
5 External links

Characteristics

Sun-sensitive rash with prominent poikiloderma and telangiectasias
Juvenile cataracts
Saddle nose
Congenital bone defects, including short stature and radial ray anomalies such as absent thumbs
Hair growth problems (absent eyelashes, eyebrows and/or hair)
Hypogonadism has not been well documented
Hypodontia
Calcium problems (not documented in journals)
Ear problems (not documented in journals but identified by patients in support groups)
Osteosarcoma^[7]

The skin is normal at birth. Between 3 to 6 moths of age, the affected carrier develops poikiloderma on the cheeks. This characteristic “rash” that all RTS carriers have can develop on the arms, legs and buttocks. “Poikiloderma consists of areas of increased ans decreased pigmentation, prominent blood vessels, and thinning of the skin”^[8]

Cause and Genetics

Rothmund–Thomson syndrome has an autosomal recessive pattern of inheritance.

RTS is caused by a mutation of the RECQL4 gene, located at chromosome 8q24.3.^[5]^[9] The disorder is inherited in an autosomal recessive manner.^[3] This means the defective gene responsible for the disorder is located on an autosome (chromosome 8 is an autosome), and two copies of the defective gene (one inherited from each parent) are required in order to be born with the disorder. The parents of an individual with an autosomal recessive disorder both carry one copy of the defective gene, but usually do not experience any signs or symptoms of the disorder.

References

^ ^a ^b Online 'Mendelian Inheritance in Man' (OMIM) 268400
^ James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. p. 576. ISBN 0-7216-2921-0.
^ ^a ^b Larizza, L.; Roversi, G.; Volpi, L. (Jan 2010). "Rothmund-Thomson syndrome" (Free full text). Orphanet Journal of Rare Diseases 5: 2. doi:10.1186/1750-1172-5-2. PMC 2826297. PMID 20113479. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2826297. edit
^ Raza N, Malik QU, Hussain Z (2007). "Rothmund-Thomson syndrome: more than just a cosmetic concern". J Coll Physicians Surg Pak. 17 (7): 423–424. PMID 17686357.
^ ^a ^b Larizza L, Magnani I, Roversi G (January 2006). "Rothmund–Thomson syndrome and RECQL4 defect: Splitting and lumping". Cancer Letters 232 (1): 107–120. doi:10.1016/j.canlet.2005.07.042. PMID 16271439. edit
^ Hicks MJ, Roth JR, Kozinetz CA, Wang LL (2007). "Clinicopathologic features of osteosarcoma in patients with Rothmund-Thomson syndrome". J. Clin. Oncol. 25 (4): 370–5. doi:10.1200/JCO.2006.08.4558. PMID 17264332.
^ Wang LL, Levy ML, Lewis RA, et al. (2001). "Clinical manifestations in a cohort of 41 Rothmund-Thomson syndrome patients". Am. J. Med. Genet. 102 (1): 11–17. doi:10.1002/1096-8628(20010722)102:1<11::AID-AJMG1413>3.0.CO;2-A. PMID 11471165.
^ Understanding RTS pamphlet, RTS Team: Lisa L. Wang (Oncologist), Moise L. Levy (dermatologist), Richard A. Lewis (Ophtalmologist), Sharon E. Plon (Geneticist)
^ Online 'Mendelian Inheritance in Man' (OMIM) 603780

External links

Rothmund-Thomson on PFOND - web-based service to promote the sharing of information about research, treatment and resources for rare genetic disorders.
GeneReviews/NCBI/NIH/UW entry on Rothmund-Thomson Syndrome
Poikiloderma of Rothmund-Thomson at NIH's Office of Rare Diseases
RTSPlace.org

Congenital malformations and deformations of integument / skin disease (Q80–Q82, 757.0–757.3)

Genodermatosis

Congenital ichthyosis/
erythrokeratodermia

AD	Ichthyosis vulgaris

AR	Congenital ichthyosiform erythroderma: Epidermolytic hyperkeratosis · Lamellar ichthyosis (Harlequin type ichthyosis) Netherton syndrome · Zunich–Kaye syndrome · Sjögren–Larsson syndrome

XR	X-linked ichthyosis

Ungrouped	Ichthyosis bullosa of Siemens · Ichthyosis follicularis · Ichthyosis prematurity syndrome · Ichthyosis–sclerosing cholangitis syndrome · Nonbullous congenital ichthyosiform erythroderma · Ichthyosis linearis circumflexa · Ichthyosis hystrix

JEB (JEB-H, Mitis, Generalized atrophic, JEB-PA)

DEB (DDEB, RDEB)

Ectodermal dysplasia

Naegeli syndrome/Dermatopathia pigmentosa reticularis · Hay–Wells syndrome · Hypohidrotic ectodermal dysplasia · Focal dermal hypoplasia · Ellis–van Creveld syndrome · Rapp–Hodgkin syndrome/Hay–Wells syndrome

Elastic/Connective

Ehlers–Danlos syndrome · Cutis laxa (Gerodermia osteodysplastica) · Popliteal pterygium syndrome · Pseudoxanthoma elasticum · Van Der Woude syndrome

Hyperkeratosis/
keratinopathy

PPK	diffuse: Diffuse epidermolytic palmoplantar keratoderma • Diffuse nonepidermolytic palmoplantar keratoderma • Palmoplantar keratoderma of Sybert • Mal de Meleda • syndromic (connexin (Bart–Pumphrey syndrome • Clouston's hidrotic ectodermal dysplasia • Vohwinkel syndrome) • Corneodermatoosseous syndrome • plakoglobin (Naxos syndrome) • Scleroatrophic syndrome of Huriez • Olmsted syndrome • Cathepsin C (Papillon–Lefèvre syndrome • Haim–Munk syndrome) • Camisa disease focal: Focal palmoplantar keratoderma with oral mucosal hyperkeratosis • Focal palmoplantar and gingival keratosis • Howel–Evans syndrome • Pachyonychia congenita (Pachyonychia congenita type I • Pachyonychia congenita type II) • Striate palmoplantar keratoderma • Tyrosinemia type II) punctate: Acrokeratoelastoidosis of Costa • Focal acral hyperkeratosis • Keratosis punctata palmaris et plantaris • Keratosis punctata of the palmar creases • Schöpf–Schulz–Passarge syndrome • Porokeratosis plantaris discreta • Spiny keratoderma ungrouped: Palmoplantar keratoderma and spastic paraplegia • desmoplakin (Carvajal syndrome) • connexin (Erythrokeratodermia variabilis • HID/KID)

Other	Meleda disease · Keratosis pilaris · ATP2A2 (Darier's disease) · Dyskeratosis congenita · Lelis syndrome Dyskeratosis congenita · Keratolytic winter erythema · Keratosis follicularis spinulosa decalvans · Keratosis linearis with ichthyosis congenital and sclerosing keratoderma syndrome · Keratosis pilaris atrophicans faciei · Keratosis pilaris

Other

cadherin (EEM syndrome) · immune system (Hereditary lymphedema, Mastocytosis/Urticaria pigmentosa) · Hailey–Hailey

see also Template:Congenital malformations and deformations of skin appendages, Template:Phakomatoses, Template:Pigmentation disorders, Template:DNA replication and repair-deficiency disorder

Developmental
anomalies

Midline	Dermoid cyst · Encephalocele · Nasal glioma · PHACE association · Sinus pericranii

Nevus	Capillary hemangioma · Port-wine stain (Nevus flammeus nuchae)

Other/ungrouped	Aplasia cutis congenita · Amniotic band syndrome · Branchial cyst · Cavernous venous malformation Accessory nail of the fifth toe · Bronchogenic cyst · Congenital cartilaginous rest of the neck · Congenital hypertrophy of the lateral fold of the hallux · Congenital lip pit · Congenital malformations of the dermatoglyphs · Congenital preauricular fistula · Congenital smooth muscle hamartoma · Cystic lymphatic malformation · Median raphe cyst · Melanotic neuroectodermal tumor of infancy · Mongolian spot · Nasolacrimal duct cyst · Omphalomesenteric duct cyst · Poland anomaly · Rapidly involuting congenital hemangioma · Rosenthal–Kloepfer syndrome · Skin dimple · Superficial lymphatic malformation · Thyroglossal duct cyst · Verrucous vascular malformation · Birthmark

M: INT, SF, LCT

anat/phys/devp

noco(i/b/d/q/u/r/p/m/k/v/f)/cong/tumr(n/e/d), sysi/epon

proc, drug (D2/3/4/5/8/11)

Metabolic disease: DNA replication and DNA repair-deficiency disorder

DNA replication

Separation/initiation: RNASEH2A (Aicardi–Goutières syndrome 4)

Termination/telomerase: DKC1 (Dyskeratosis congenita)

DNA repair

Nucleotide excision repair	Cockayne syndrome/DeSanctis–Cacchione syndrome · Thymine dimer (Xeroderma pigmentosum) · IBIDS syndrome

MSI/DNA mismatch repair	Hereditary nonpolyposis colorectal cancer · Muir–Torre syndrome · Mismatch repair cancer syndrome

MRN complex	Ataxia telangiectasia · Nijmegen breakage syndrome

Other	RecQ helicase (Bloom syndrome, Werner syndrome, Rothmund–Thomson syndrome/Rapadilino syndrome) · Fanconi anemia · Li-Fraumeni syndrome · Severe combined immunodeficiency

see also DNA replication, DNA repair
B structural (perx, skel, cili, mito, nucl, sclr) · DNA/RNA/protein synthesis (drep, trfc, tscr, tltn) · membrane (icha, slcr, atpa, abct, othr) · transduction (iter, csrc, itra), trfk

This genetic disorder article is a stub. You can help Wikipedia by expanding it.

This Genodermatoses article is a stub. You can help Wikipedia by expanding it.

This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)

Donate to Wikimedia

Help us answer these

What do Klinefelter's syndrome and Down syndrome have in common?

Why is Hughes syndrome called Hughes syndrome?

Why is birth syndrome called birth syndrome?

In which comic will you find the twins -thomson and thomson?

Post a question - any question - to the WikiAnswers community:

Copyrights:

Cite

Wikipedia on Answers.com This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article Rothmund–Thomson syndrome. Read