Neurofibromatosis type 1

Neurofibromatosis type 1 (NF1) is a clinically heterogeneous, neurocutaneous genetic disorder characterized by café-au-lait spots, iris Lisch nodules, axillary and inguinal freckling, and multiple neurofibromas.

Freckling

The presence of an increased number of freckles, small circular spots on the skin that are darker than the surrounding skin because of deposits of melanin.


Total: 13

                      


(per page)
PMID (PMCID)
28378438
FEMALE Adult
Legius syndrome: A case report.
Kimura R, Yoshida Y, Maruoka R, Kosaki K, Yamamoto O.
J Dermatol. 2017;44(4):459-460.
A 37-year-old woman presented with multiple cafe-au-lait macules and freckles but has no other features of neurofibromatosis type 1 (NF-1).
28150585
MIXED_SAMPLE Infant
The first Slovak Legius syndrome patient carrying the SPRED1 gene mutation.
Sekelska M, Briatkova L, Olcak T, Bolcekova A, Ilencikova D, Kadasi L, Zatkova A.
Gen Physiol Biophys. 2017;36(2):205-210.
Autosomal dominant disorder Legius syndrome (NF1- like syndrome) shows phenotype features that overlap with neurofibromatosis type 1 (NF1), such as CALMs, freckling, macrocephaly and learning disability.
27173220
MALE
NF1 frameshift mutation (c.6520_6523delGAGA) association with nervous system tumors and bone abnormalities in a Chinese patient with neurofibromatosis type 1.
Su SY, Zhou X, Pang XM, Chen CY, Li SH, Liu JL.
Genet Mol Res. 2016;15(2):.
Neurofibromatosis type 1, also known as NF1 or von Recklinghausen's disease, is a common neurocutaneous syndrome that presents with multiple cafe-au-lait patches, skinfold freckling, dermatofibromas, neurofibromas, and Lisch nodules.
25960657
(4410829)
OTHER
A novel missense KIT mutation causing piebaldism in one Chinese family associated with cafe-au-lait macules and intertriginous freckling.
Jia WX, Xiao XM, Wu JB, Ma YP, Ge YP, Li Q, Mao QX, Li CR.
Ther Clin Risk Manag. 2015;11:635-8.
This study reveals a novel KIT mutation in piebaldism, and it further supports that cafe-au-lait macules and intertriginous freckling of piebaldism are parts of pigmented anomaly in piebaldism, which does not necessarily represent coexistence of neurofibromatosis type 1 (NF1).
23016555
(3967413)
MIXED_SAMPLE
Association of Piebaldism, multiple cafe-au-lait macules, and intertriginous freckling: clinical evidence of a common pathway between KIT and sprouty-related, ena/vasodilator-stimulated phosphoprotein homology-1 domain containing protein 1 (SPRED1).
Chiu YE, Dugan S, Basel D, Siegel DH.
Pediatr Dermatol. 2013;30(3):379-82.
Based on our current understanding of KIT and SPRED1 protein interactions, we propose that cafe-au-lait macules and freckling may be seen in some patients with piebaldism and does not necessarily represent coexistence of neurofibromatosis type 1.
23399325
(3579694)
MALE Child
Four-year follow-up study in a NF1 boy with a focal pontine hamartoma.
Parisi P, Persechino S, Paolino MC, Nicita F, Torrente I, Bozzao A, Villa MP.
Ital J Pediatr. 2013;39:10.
The condition usually appears in childhood and is diagnosed if two of the following are present: six or more cafe-au-lait patches larger than 1.5 cm in diameter, axillary or groin freckling, 2 or more Lisch nodules (small pigmented areas in the iris of the eye), 2 or more neurofibromas, optic pathway gliomas, bone dysplasia, and a first-degree family relative with Neurofibromatosis type 1.
22438235
MALE Child
Cafe-au-lait macules and intertriginous freckling in piebaldism: clinical overlap with neurofibromatosis type 1 and Legius syndrome.
Stevens CA, Chiang PW, Messiaen LM.
Am J Med Genet A. 2012;158A(5):1195-9.
Cafe-au-lait macules and intertriginous freckling in piebaldism: clinical overlap with neurofibromatosis type 1 and Legius syndrome.
22438235
MALE Child
Cafe-au-lait macules and intertriginous freckling in piebaldism: clinical overlap with neurofibromatosis type 1 and Legius syndrome.
Stevens CA, Chiang PW, Messiaen LM.
Am J Med Genet A. 2012;158A(5):1195-9.
There are four reports describing six patients who were said to have both piebaldism and neurofibromatosis type 1 (NF1) due to the presence of multiple CALM and intertriginous freckling, but none of these patients had undergone comprehensive NF1 mutation analysis.
21071237
FEMALE
Neurofibromatosis type 1 associated with bilateral central giant cell granuloma of the mandible.
Chrcanovic BR, Gomez RS, Freire-Maia B.
J Craniomaxillofac Surg. 2011;39(7):538-43.
Clinically, Neurofibromatosis type 1 is characterized by cafe-au-lait spots, freckling, skin neurofibroma, plexiform neurofibroma, bony defects, Lisch nodules and tumors of the central nervous system.
21323101
MIXED_SAMPLE Middle Aged
Segmental neurofibromatosis: report of 3 cases.
Mansur AT, Goktay F, Akkaya AD, Gunes P.
Cutis. 2011;87(1):45-50.
Segmental neurofibromatosis (SNF) is an uncommon variant of neurofibromatosis type 1 (NF-1) that is characterized by cafe au lait spots, freckles, and/or neurofibromas limited to a body segment.
16939586
MALE
Bilateral segmental neurofibromatosis with gastric carcinoma.
Kajimoto A, Oiso N, Fukai K, Ishii M.
Clin Exp Dermatol. 2007;32(1):43-4.
Neurofibromatosis type 1 (NF1) is an autosomal-dominant disorder characterized by cafe-au-lait spots, neurofibromas, intertriginous freckles, and Lisch nodules in the iris.
15635820
FEMALE Middle Aged
Autoimmune haemolysis as an unusual cause of anaemia in von Recklinghausen's disease.
Tekin F, Ozutemiz O, Carcurgan S, Ilter T.
Neth J Med. 2004;62(9):337-9.
Von Recklinghausen's disease, now classified as neurofibromatosis type 1 (NF-1), is a relatively frequent autosomal dominant disorder and has clinical manifestations, such as cafe-au-lait spots, freckling, generalised cutaneus neurofibroma, Lisch nodules, short stature, optic glioma and central nervous system tumours.
8849480
MALE Adult
[A case report of dysembryoplastic neuroepithelial tumor associated with neurofibromatosis type 1].
Kannuki S, Bando K, Soga T, Matsumoto K, Hirose T.
No Shinkei Geka. 1996;24(2):183-8.
On general physiological examination, many cafe au lait spots and freckling could be noted, showing that the case was neurofibromatosis type 1.