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1.
Rev. Hosp. Clin. Univ. Chile ; 33(1): 21-27, 2022. tab, ilus
Article in Spanish | LILACS | ID: biblio-1401531

ABSTRACT

Neurofibromatosis type 1 (NF1) is the most common neurocutaneous syndrome. Diagnosis is based on clinical findings that meets the criteria developed by the NIH in 1997, which remain highly sensitive and specific in adults, but not in children, in which the manifestations vary with age. In children under 2 years in the pretumoral stage with a negative family history, it would be useful to have additional clinical diagnostic criteria. Genetic testing is not widely available and although café-au-lait spots remain the cardinal and most frequent clinical sign, they cannot make the diagnosis of NF-1 on their own. (AU)


Subject(s)
Humans , Male , Child, Preschool , Adolescent , Neurofibromatosis 1/diagnosis , Neurofibromatosis 1/genetics , Neurofibromatosis 1/pathology , Cafe-au-Lait Spots/diagnosis , Cafe-au-Lait Spots/pathology
2.
An. bras. dermatol ; 96(4): 487-489, July-Aug. 2021. tab, graf
Article in English | LILACS | ID: biblio-1285103

ABSTRACT

Abstract Neurofibromatosis is a common genodermatosis, whose diagnosis often involves the participation of a dermatologist. A case of a 38-year-old female patient with four café-au-lait macules and eleven neurofibromas on clinical examination is presented. Dermoscopy allowed the identification of Lisch nodules in the iris, bilaterally. The combination of these findings allowed the diagnosis of neurofibromatosis type 1, according to NIH criteria. Lisch nodules are melanocytic hamartomas of the iris, which must be evaluated through a visual augmentation method, usually employed in ophthalmology. Alternatively, dermoscopy can be used and contribute to the early diagnosis of neurofibromatosis type 1.


Subject(s)
Humans , Female , Adult , Neurofibromatosis 1/diagnostic imaging , Hamartoma , Iris , Cafe-au-Lait Spots/diagnosis , Dermoscopy
3.
Arch. argent. pediatr ; 119(5): e420-e427, oct. 2021. tab, ilus
Article in English, Spanish | LILACS, BINACIS | ID: biblio-1292096

ABSTRACT

Introducción. El síndrome de McCune-Albright (SMA) es un trastorno genético caracterizado por displasia ósea fibrosa, manchas cutáneas color "café con leche" e hiperfunción autónoma de uno o varios órganos endocrinos. El SMA es producido por mutaciones activadoras del gen GNAS1. La endocrinopatía más frecuente es la gonadal, que se manifiesta como pubertad precoz periférica. Objetivo. Describir las características clínicas y los estudios de laboratorio e imágenes en el momento del diagnóstico y a lo largo de la evolución de la enfermedad, con énfasis en la tríada clásica del síndrome. Población y métodos. Estudio clínico observacional, descriptivo, retrospectivo de las historias clínicas de pacientes con SMA de la División de Endocrinología del Hospital de Niños Ricardo Gutiérrez desde 1974 hasta 2019. Resultados. Se presentan 12 niñas. Todas tuvieron pubertad precoz periférica (PPP) secundaria a quistes ováricos funcionantes. La edad de presentación fue temprana (2,6 ± 1,3 años). Los niveles de gonadotrofinas estuvieron suprimidos o en rango prepuberal con niveles de estradiol generalmente elevados. Diez niñas tuvieron manchas "café con leche" desde el nacimiento. Durante la evolución se detectó displasia fibrosa poliostótica en todas las pacientes. Los tratamientos utilizados para disminuir la recurrencia de los quistes ováricos y los efectos del hiperestrogenismo mostraron diferente eficacia. Conclusiones. En esta serie, la aparición de PPP contribuyó al diagnóstico temprano del SMA y fue de difícil tratamiento. En la evolución persistió la hiperfunción gonadal y empeoraron las lesiones óseas.


Introduction. McCune-Albright syndrome (MAS) is a genetic disorder defined by fibrous dysplasia of bone, café-au-lait skin spots, and autonomous hyperfunction of one or more endocrine organs. MAS is caused by activating mutations of the GNAS1 gene. The most frequent type of endocrinopathy is gonadal endocrinopathy in the form of peripheral precocious puberty. Objective. To describe the clinical characteristics, laboratory and imaging tests at the time of diagnosis and over the course of the disease, focusing on the classical triad of MAS. Population and methods. Observational, descriptive, retrospective clinical study of patients with MAS seen at the Department of Endocrinology of Hospital de Niños Ricardo Gutiérrez between 1974 and 2019. Results. Twelve girls are described, all of whom developed peripheral precocious puberty (PPP) secondary to functional ovarian cysts. Their age at presentation was early (2.6 ± 1.3 years). Gonadotropin levels were suppressed or in the prepubertal range with generally high estradiol levels. Ten girls had café-au-lait skin spots since birth. During the course of disease, polyostotic fibrous dysplasia was detected in all patients. The treatments used to reduce ovarian cyst recurrence and hyperestrogenism effects showed varied effectiveness. Conclusions. In this series, the onset of PPP helped to make an early diagnosis of MAS and was difficult to treat. The course of disease showed persistent gonadal hyperfunction and worsening of bone injuries


Subject(s)
Humans , Female , Infant , Child, Preschool , Child , Adolescent , Puberty, Precocious/diagnosis , Puberty, Precocious/etiology , Puberty, Precocious/therapy , Fibrous Dysplasia, Polyostotic/complications , Fibrous Dysplasia, Polyostotic/diagnosis , Fibrous Dysplasia, Polyostotic/therapy , Retrospective Studies , Follow-Up Studies , Cafe-au-Lait Spots/diagnosis , Cafe-au-Lait Spots/therapy , Neoplasm Recurrence, Local
4.
Indian Pediatr ; 2005 Aug; 42(8): 831
Article in English | IMSEAR | ID: sea-9177
5.
Dermatol. argent ; 5(5): 419-21, oct.-nov. 1999. ilus
Article in Spanish | LILACS | ID: lil-254864

ABSTRACT

La neurofibromatosis segmentaria es una forma clínica poco frecuente de neurofibromatosis, caracterizada clínicamente por máculas café con leche y/o neurofibromas que se disponen en un sector del cuerpo siguiendo uno o más dermatomas en forma unilateral. Otra particularidad es la infrecuencia de casos familiares y de compromiso sistémico. Se presenta un caso y se realiza una revisión de la literatura


Subject(s)
Humans , Female , Adult , Neurofibromatoses/diagnosis , Diagnosis, Differential , Cafe-au-Lait Spots/diagnosis , Cafe-au-Lait Spots/etiology
6.
In. Goic Goic, Alejandro; Chamorro Z, Gastón; Reyes Budelovsky, Humberto. Semiología médica. Santiago de Chile, Mediterráneo, 2 ed; 1999. p.206-10.
Monography in Spanish | LILACS | ID: lil-284887
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