RESUMO
Autosomal recessive type 2 primary hypertrophic osteoarthropathy (PHOAR2) and chronic enteropathy associated with SLCO2A1 (CEAS) are two entities caused by pathogenic variants (PVs) in the SLCO2A1 gene that can coexist or occur independently from one another. We report two cases of PHOAR2 in Mexico with concomitant CEAS and conducted a review of the literature of the reported cases of PHOAR2 and/or CEAS to analyze the relationship between their genotype and phenotype presentation. The patients from our Institution with classical PHOAR2 phenotype and CEAS, harbored SLCO2A1 c.547G > A and c.1768del variants. We reviewed 232 cases, of which 86.6% were of Asian origin, and identified 109 different variants in SLCO2A1. Intron 7, exon 13, and exon 4 were predominantly affected. The two most common PVs were c.940 + 1G > A and c.1807C > T. We found a statistically significant association between SLCO2A1 variants located in intron 7, exons 12, and 13 and the development of CEAS. Missense variants were more frequent in isolated PHOAR2, while a greater proportion of protein-truncating variants (PTVs) were found in CEAS. Further investigation is imperative to elucidate the underlying pathophysiological mechanisms associated with CEAS, thereby facilitating the identification of effective therapeutic interventions.
Assuntos
Transportadores de Ânions Orgânicos , Osteoartropatia Hipertrófica Primária , Humanos , Osteoartropatia Hipertrófica Primária/diagnóstico , Osteoartropatia Hipertrófica Primária/genética , Transportadores de Ânions Orgânicos/genética , Genótipo , Fenótipo , Mutação de Sentido IncorretoRESUMO
RESUMEN: La paquidermoperiostosis es un raro desorden hereditario caracterizado por periostosis, paquidermia y acropaquia. Su expresividad es variable, por lo que son infrecuentes las formas completas de este síndrome. Se postula que sus manifestaciones clínicas se debana la formaciónexcesiva de colágenoyla desregulacióndeproteínas de la matrizdebido a lahiperactivaciónfibroblástica. Reportamos el caso de un varón de 32 años, quien desde los 18 años presenta edema en extremidades asociado a alteraciones en cara y cuero cabelludo.Presentamos el caso por haberse manifestado deforma completa, que es infrecuente, y por su semejanza con otras enfermedades.
ABSTRACT: Pachydermoperiostosis or primary hypertrophic osteoarthropathy, also known as Touraine-Solente-Golé syndrome, is a rare disorder, frequently inherited, characterized by periostitis of long bones,pachydermia (thickening of the skin) andacropachia. Expression tends to be variable, and so complete versions of the syndrome are infrequent. Abnormalities in fibroblast functionality have been implicated, along with an increase in collagen fibers´ synthesis.We report the case of 32-year-old man that consulted for cutaneous manifestations (thickening of face, scalp, hands and feet´s skin) since 18 years-old. We highlight the importance of the complete form of presentation and due to its similarity to other diseases.
RESUMO
Apresentamos o caso de um paciente com baqueteamento digital e artrite que foi diagnosticado como tendo osteoartropatia hipertrófica primária. Essa é uma doença rara e benigna. Entretanto, artralgia e alterações cutâneas podem reduzir significativamente a qualidade de vida do paciente. Além de um breve resumo da doença, apresentamos o caso e a revisão da literatura, enfatizando o tratamento dessa condição para os clínicos em geral.
We report the case of a patient with clubbing of the digits and arthritis who was diagnosed as having primary hipertrophic osteoarthropathy. This is a rare, benign disease. However, the arthralgia and skin changes can significantly impair the quality of life of the patient. In addition to a brief description of the disease, we present the case and a review of the literature regarding the treatment of this condition to the general practitioner.