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Tonofilament clumping

MedGen UID:
1810356
Concept ID:
C5676664
Finding
Synonym: Clumping of keratin tonofilaments
 
HPO: HP:0034067

Definition

Formation of lumps of tonofilaments, which are bundles of keratin filaments. In some but not all epithelia, keratin filaments are conspicuously bundled as tonofilaments. Inside the cell they braid the nucleus, span through the cytoplasm and are attached to the cytoplasmic plaques of the typical epithelial cell-cell junctions, the desmosomes. [from HPO]

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews,  VClinVar  
  • CROGVTonofilament clumping

Conditions with this feature

Epidermolysis bullosa simplex 1A, generalized severe
MedGen UID:
38194
Concept ID:
C0079295
Disease or Syndrome
Epidermolysis bullosa simplex (EBS) is characterized by fragility of the skin (and mucosal epithelia in some instances) that results in non-scarring blisters and erosions caused by minor mechanical trauma. EBS is distinguished from other types of epidermolysis bullosa (EB) or non-EB skin fragility syndromes by the location of the blistering in relation to the dermal-epidermal junction. In EBS, blistering occurs within basal keratinocytes. The severity of blistering ranges from limited to hands and feet to widespread involvement. Additional features can include hyperkeratosis of the palms and soles (keratoderma), nail dystrophy, milia, and hyper- and/or hypopigmentation. Rare EBS subtypes have been associated with additional clinical features including pyloric atresia, muscular dystrophy, cardiomyopathy, and/or nephropathy.
Epidermolysis bullosa simplex, Dowling-Meara type, with severe palmoplantar keratoderma
MedGen UID:
864672
Concept ID:
C4016235
Disease or Syndrome

Recent clinical studies

Etiology

Arin MJ, Longley MA, Küster W, Huber M, Hohl D, Rothnagel JA, Roop DR
Exp Dermatol 1999 Apr;8(2):124-7. doi: 10.1111/j.1600-0625.1999.tb00359.x. PMID: 10232403
Haber RM, Hanna WM
Arch Dermatol 1996 Dec;132(12):1487-90. doi: 10.1001/archderm.132.12.1487. PMID: 8961879
Stevens HP, Kelsell DP, Bryant SP, Bishop DT, Dawber RP, Spurr NK, Leigh IM
J Invest Dermatol 1996 Apr;106(4):795-7. doi: 10.1111/1523-1747.ep12346400. PMID: 8618025
Kitajima Y, Jokura Y, Yaoita H
Br J Dermatol 1993 Jan;128(1):79-85. doi: 10.1111/j.1365-2133.1993.tb00152.x. PMID: 8427826
Kero M
Acta Derm Venereol Suppl (Stockh) 1984;110:1-51. PMID: 6331034

Diagnosis

Diociaiuti A, Giancristoforo S, Pisaneschi E, Condorelli AG, Boldrini R, Zambruno G, El Hachem M
Pediatr Dermatol 2020 Mar;37(2):393-395. Epub 2020 Jan 19 doi: 10.1111/pde.14105. PMID: 31957133
Arin MJ, Longley MA, Anton-Lamprecht I, Kurze G, Huber M, Hohl D, Rothnagel JA, Roop DR
J Invest Dermatol 1999 Apr;112(4):506-8. doi: 10.1046/j.1523-1747.1999.00557.x. PMID: 10201536
Joh GY, Traupe H, Metze D, Nashan D, Huber M, Hohl D, Longley MA, Rothnagel JA, Roop DR
J Invest Dermatol 1997 Mar;108(3):357-61. doi: 10.1111/1523-1747.ep12286491. PMID: 9036939

Therapy

Kero M
Acta Derm Venereol Suppl (Stockh) 1984;110:1-51. PMID: 6331034

Prognosis

Diociaiuti A, Giancristoforo S, Pisaneschi E, Condorelli AG, Boldrini R, Zambruno G, El Hachem M
Pediatr Dermatol 2020 Mar;37(2):393-395. Epub 2020 Jan 19 doi: 10.1111/pde.14105. PMID: 31957133
Gu LH, Kim SC, Ichiki Y, Park J, Nagai M, Kitajima Y
J Invest Dermatol 2003 Sep;121(3):482-5. doi: 10.1046/j.1523-1747.2003.12424.x. PMID: 12925204
Arin MJ, Longley MA, Küster W, Huber M, Hohl D, Rothnagel JA, Roop DR
Exp Dermatol 1999 Apr;8(2):124-7. doi: 10.1111/j.1600-0625.1999.tb00359.x. PMID: 10232403

Clinical prediction guides

Ahmed I, Subtil A, Thomas DA
Am J Dermatopathol 2005 Jun;27(3):232-6. doi: 10.1097/01.dad.0000157447.54281.3d. PMID: 15900128
Gu LH, Kim SC, Ichiki Y, Park J, Nagai M, Kitajima Y
J Invest Dermatol 2003 Sep;121(3):482-5. doi: 10.1046/j.1523-1747.2003.12424.x. PMID: 12925204
Arin MJ, Longley MA, Anton-Lamprecht I, Kurze G, Huber M, Hohl D, Rothnagel JA, Roop DR
J Invest Dermatol 1999 Apr;112(4):506-8. doi: 10.1046/j.1523-1747.1999.00557.x. PMID: 10201536
Haber RM, Hanna WM
Arch Dermatol 1996 Dec;132(12):1487-90. doi: 10.1001/archderm.132.12.1487. PMID: 8961879

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