Gorlin-like phenotype in a patient with a PTCH2 variant of uncertain significance

التفاصيل البيبلوغرافية
العنوان: Gorlin-like phenotype in a patient with a PTCH2 variant of uncertain significance
المؤلفون: Regina M. Zambrano, Jairo I. Torres, Yves Lacassie, Michael Marble, Hannah Meddaugh, Kelsey Casano
المصدر: European Journal of Medical Genetics. 63:103842
بيانات النشر: Elsevier BV, 2020.
سنة النشر: 2020
مصطلحات موضوعية: Male, 0301 basic medicine, Proband, medicine.medical_specialty, Telecanthus, Nevoid basal-cell carcinoma syndrome, 030105 genetics & heredity, Patched-2 Receptor, 03 medical and health sciences, Germline mutation, Genetics, medicine, Humans, Hypertelorism, Child, Genetics (clinical), business.industry, Macrocephaly, Basal Cell Nevus Syndrome, General Medicine, medicine.disease, Dermatology, stomatognathic diseases, Phenotype, 030104 developmental biology, PTCH1, Mutation, medicine.symptom, Palmar crease, business
الوصف: Gorlin syndrome, also known as Nevoid Basal-Cell Carcinoma Syndrome (NBCCS), is an autosomal dominant tumor predisposition syndrome that presents early in life with characteristic congenital malformations and tumors. This syndrome most commonly results from germline mutations of the PTCH1 tumor suppressor gene, which shows high penetrance and great intra and interfamilial phenotypic variability, as well as the SUFU tumor suppressor gene. Recently, the PTCH2 gene has also been implicated as a cause of Gorlin syndrome. Notably, these patients displayed milder phenotypes of Gorlin syndrome when considered against PTCH1 and SUFU-related disease. We report a patient with a novel PTCH2 mutation inherited from his father. The proband displays several minor diagnostic features of Gorlin syndrome, supporting the pathogenic role of this gene. Features in the proband include macrocephaly, a wide face, prominent forehead, hypertelorism/telecanthus, large eyes, cleft lip and palate, thin vertical palmar creases, penoscrotal inversion, and a hyperpigmented spot on his penis. His father displays macrocephaly, several nevi on his back and shoulders, and a single palmar pit on his left hand, raising suspicion for Gorlin syndrome. Whole exome sequence (trio) found that the proband and father are heterozygous for NM_003738.4:c.3347C>T;p.(Pro1116Leu) in exon 21 of PTCH2, found also in his mildly affected brother. This semi-conservative amino acid substitution has been reported in the literature, but its significance is unclear. Notably, the proband, brother, and father do not meet clinical criteria for Gorlin syndrome. However, the clinical findings described in this family support the association between PTCH2 mutations and Gorlin-like phenotypes.
تدمد: 1769-7212
DOI: 10.1016/j.ejmg.2020.103842
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bc8545dd3a7dc026f3ae8e4f664afa7
https://doi.org/10.1016/j.ejmg.2020.103842
Rights: CLOSED
رقم الانضمام: edsair.doi.dedup.....6bc8545dd3a7dc026f3ae8e4f664afa7
قاعدة البيانات: OpenAIRE
الوصف
تدمد:17697212
DOI:10.1016/j.ejmg.2020.103842