RESUMO
Objective To summarize the clinical features of a family with Basan syndrome and to analyze mutation of the SMARCAD1 gene. Methods The Basan family was diagnosed at Dermatology Hospital, Southern Medical University in 2022. Backgroud data was collected, and clinical and genetic characteristics were analyzed. Meanwhile, a retrospective analysis of features and associated genetic mutations reported in all patients with Basan syndrome was conducted. Results A total of 18 patients with Basan syndrome were identified, including 9 males and 9 females. All 18 patients had no fingerprints at birth (18/18, 100%), and some patients had knuckle pads, palmoplantar hyperkeratosis, nail atrophy, nail separation, and longitudinal nail ridges. Symptoms vary in severity. At the same time, it was found that c.-10+1G > T (as well as c.378+1G > T)mutations appeared on the intron 1 of the SMARCAD1 (NM_020159.5) gene in 7 patients, resulting in abnormal splicing. Conclusions This article provides help for the early diagnosis of Basan syndrome and helps to improve the diagnosis and differentiation level of clinicians.
RESUMO
El síndrome de Kindler es un cuadro autosómico recesivo, caracterizado por fotosensibilidad, envejecimiento prematuro, poiquilodermia y propensión al desarrollo de cáncer de piel. Se presenta una paciente de 16 años, procedente del sur de Honduras, hija de padres no consanguíneos, sin antecedentes familiares relevantes y con historia de dermatosis diseminada que afecta la cabeza, el tronco y las extremidades superiores e inferiores. Esta se caracterizaba por la presencia de placas atróficas con telangiectasias, que se exacerbaban ante la exposición al sol, con formación de ampollas, especialmente en el dorso de las manos, y por cicatrices atróficas similares al papel de cigarrillo.
Kindler syndrome is an autosomal recessive syndrome characterized by photosensitivity, premature aging, poikiloderma and propensity to develop skin cancer.A sixteen years old patient from southern Honduras, daughter of non consanguineous parents with no family history, is presented. In her first year she developed a dermatosis disseminated to the head, trunk and upper and lower extremities, characterized by atrophic plaques with telangiectasias exacerbated up to blistering when exposed to the sun, especially on the back of hands, with atrophic scars similar to paper cigarette.