Zimmermann–Laband syndrome

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Zimmermann-Laband syndrome
Autosomal dominant - en.svg
Zimmerman-Laband syndrome has an autosomal dominant pattern of inheritance
Classification and external resources
Specialty medical genetics
OMIM 135500
Orphanet 3473

Zimmermann–Laband syndrome (ZLS),[1] also known as Laband Zimmermann syndrome,[2] and Laband's Syndrome,[3] is an extremely rare[4] autosomal dominant[5] congenital disorder.


Symptoms include gingival fibromatosis, associated with hypoplasia of the distal phalanges, nail dysplasia, joint hypermobility, and sometimes hepatosplenomegaly.[6] The nose and pinnae are usually large and poorly developed, which gives the individuals with the syndrome abnormal facial characteristics. Mental retardation may also occur.[7][8] Both males and females are equally affected. Gingival fibromatosis is usually present at birth or appears short after.[3][8] The term Zimmermann-Laband was coined by Carl Jacob Witkop in 1971.[8]


Zimmerman-Laband syndrome is inherited in an autosomal dominant pattern. This means the defective gene is located on an autosome, and only one copy of the gene is sufficient to cause the disorder, when inherited from a parent who has the disorder.

The condition is caused by mutations in a potassium channel gene - KCNH1.[9]



See also[edit]


  1. ^ Zimmermann-Laband Syndrome - What does ZLS stand for? Acronyms and abbreviations by the Free Online Dictionary
  2. ^ Bolognia, Jean L; et al. (2007). Dermatology. St. Louis: Mosby. ISBN 1-4160-2999-0. 
  3. ^ a b Laband Syndrome Archived September 27, 2007, at the Wayback Machine.
  4. ^ Zimmerman Laband syndrome; Fibromatosis gingival, with abnormal fingers, fingernails, nose and ears, and splenomegaly at NIH's Office of Rare Diseases
  5. ^ Holzhausen, M; Gonçalves, D; Corrêa, Fde, O; Spolidorio, Lc; Rodrigues, Vc; Orrico, Sr (August 2003). "A case of Zimmermann-Laband syndrome with supernumerary teeth". Journal of periodontology. 74 (8): 1225–30. doi:10.1902/jop.2003.74.8.1225. ISSN 0022-3492. PMID 14514238. 
  6. ^ Atabek ME, Pirgon O, Sert A, Toy H (2005). "Zimmermann-Laband syndrome in an infant with an atypical histologic finding". Pediatr. Dev. Pathol. 8 (6): 654–7. doi:10.1007/s10024-005-0048-1. PMID 16267629. 
  7. ^ Cat.Inist
  8. ^ a b c synd/3783 at Who Named It?
  9. ^ Mégarbané A, Al-Ali R, Choucair N, Lek M, Wang E, Ladjimi M, Rose CM, Hobeika R, Macary Y, Temanni R, Jithesh PV, Chouchane A, Sastry KS, Thomas R, Tomei S, Liu W, Marincola FM, MacArthur D, Chouchane L1 (2016) Temple-Baraitser Syndrome and Zimmermann-Laband Syndrome: one clinical entity? BMC Med Genet. 17(1):42. doi: 10.1186/s12881-016-0304-4