" /> Schimmelpenning-feuerstein-mims syndrome - CISMeF





Preferred Label : Schimmelpenning-feuerstein-mims syndrome;

Symbol : SFM;

CISMeF acronym : SFM; JNP;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Jadassohn nevus phakomatosis; Linear sebaceous nevus syndrome; Sebaceous nevus syndrome, linear; Nevus sebaceus of jadassohn; Organoid nevus phakomatosis; Sfm syndrome; Epidermal nevus syndrome; JNP;

Description : Schimmelpenning-Feuerstein-Mims syndrome, also known as linear sebaceous nevus syndrome, is characterized by sebaceous nevi, often on the face, associated with variable ipsilateral abnormalities of the central nervous system, ocular anomalies, and skeletal defects (summary by Happle, 1991 and Ernst et al., 2007). The linear sebaceous nevi follow the lines of Blaschko (Hornstein and Knickenberg, 1974; Bouwes Bavinck and van de Kamp, 1985). All cases are sporadic. The syndrome is believed to be caused by an autosomal dominant lethal mutation that survives by somatic mosaicism (Gorlin et al., 2001).;

Inheritance : Somatic mosaicism;

Molecular basis : Caused by somatic mosaic mutation in the HRAS protooncogene, GTPase, gene (HRAS, 190020.0017); Caused by somatic mosaic mutation in the KRAS protooncogene, GTPase, gene (KRAS, 190070.0005);

Neoplasia : Basal cell carcinoma; Syringocystadenoma papilliferum; Central giant cell granuloma; Trichoblastoma;

Laboratory abnormalities : Phosphaturia (in some); Phosphaturia may disappear after a long period of time;

Prefixed ID : #163200;

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09/06/2024


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