A síndrome de Cantu é uma condição rara que se caracteriza por crescimento excessivo de pelos desde o nascimento, problemas no desenvolvimento dos ossos e das cartilagens, coração aumentado e alterações na aparência física.
Introdução
O que você precisa saber de cara
A síndrome de Cantu é uma condição rara que se caracteriza por crescimento excessivo de pelos desde o nascimento, problemas no desenvolvimento dos ossos e das cartilagens, coração aumentado e alterações na aparência física.
Escala de raridade
<1/50kMuito rara
1/20kRara
1/10kPouco freq.
1/5kIncomum
1/2k
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Entender a doença
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Sinais e sintomas
O que aparece no corpo e com que frequência cada sintoma acontece
Partes do corpo afetadas
+ 24 sintomas em outras categorias
Características mais comuns
Os sintomas variam de pessoa para pessoa. Abaixo estão as 58 características clínicas mais associadas, ordenadas por frequência.
Linha do tempo da pesquisa
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Genética e causas
O que está alterado no DNA e como passa nas famílias
Genes associados
2 genes identificados com associação a esta condição. Padrão de herança: Autosomal dominant, Not applicable.
Inward rectifier potassium channels are characterized by a greater tendency to allow potassium to flow into the cell rather than out of it (PubMed:20558321, PubMed:21836131, PubMed:24700710, PubMed:28842488). Their voltage dependence is regulated by the concentration of extracellular potassium; as external potassium is raised, the voltage range of the channel opening shifts to more positive voltages (PubMed:20558321, PubMed:21836131, PubMed:24700710, PubMed:28842488). The inward rectification is
Membrane
Subunit of ATP-sensitive potassium channels (KATP). Can form cardiac and smooth muscle-type KATP channels with KCNJ11. KCNJ11 forms the channel pore while ABCC9 is required for activation and regulation (PubMed:9831708). Can form a sulfonylurea-sensitive but ATP-insensitive potassium channel with KCNJ8 (By similarity)
Membrane
Cardiomyopathy, dilated, 1O
A disorder characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia. Patients are at risk of premature death.
Variantes genéticas (ClinVar)
413 variantes patogênicas registradas no ClinVar.
Vias biológicas (Reactome)
4 vias biológicas associadas aos genes desta condição.
Diagnóstico
Os sinais que médicos procuram e os exames que confirmam
Tratamento e manejo
Remédios, cuidados de apoio e o que precisa acompanhar
Onde tratar no SUS
Hospitais de referência no Brasil e o protocolo oficial do SUS (PCDT)
🇧🇷 Atendimento SUS — Síndrome Cantú
Selecione um estado ou use sua localização para ver resultados.
Dados de DATASUS/CNES, SBGM, ABNeuro e Ministério da Saúde. Sempre confirme a disponibilidade diretamente com o estabelecimento.
Pesquisa ativa
Ensaios clínicos abertos e novidades científicas recentes
Pesquisa e ensaios clínicos
Nenhum ensaio clínico registrado para esta condição.
Publicações mais relevantes
The Voice of Cantú: Lower Voice Pitch Is a New Phenotypic Feature of Cantú Syndrome.
Cantú syndrome (CS) is a rare genetic condition caused by pathogenic variants in either ABCC9 or KCNJ8, leading to gain-of-function of KATP-channels. The main clinical features are hypertrichosis and cardiovascular abnormalities. This study investigates the voice characteristics in individuals with CS, an aspect that has received little attention in previous research. A total of 18 participants with molecular genetically confirmed CS were recruited, 11 females and 7 males, aged 9-63 years. Voice pitch analysis was conducted using the Voice Tools application, comparing these findings with normative data from healthy individuals. We show that adult females with CS exhibit voice pitches consistently lower than the normative values, particularly below the bottom quartile, suggesting a distinct impact of the underlying gene defect on the adult female voice phenotype. Conversely, adult males with CS show less noticeable deviations in voice pitch compared to healthy males. Children with CS exhibit a voice pitch closer to normative ranges. Adults with CS exhibit a lower voice pitch than healthy controls, especially evident in females. This study highlights the influence of CS on voice pitch, possibly influenced by anatomical abnormalities in CS such as enlarged craniofacial structures and connective tissue alterations affecting vocal fold mass and pliability.
Cantu syndrome-associated SUR2[H60Y] mutation confers selective gain of function on Kir6.1 ATP-sensitive potassium channels.
Gain-of-function (GOF) mutations in either Kir6.1 (encoded by KCNJ8) or SUR2 (encoded by ABCC9) are causally associated with Cantu syndrome (CS), characterized by coarse facial appearance, hypertrichosis, and multiple cardiovascular abnormalities. To date, all SUR2 mutations identified in association with CS have demonstrated GOF because of reduced ATP sensitivity using patch-clamp analysis, with the notable exception of SUR2[H60Y], which showed WT behavior in Kir6.2-SUR2A channels. We readdressed the effect of SUR2[H60Y] on channel function of the relevant Kir6.1-SUR2B channels, in intact cells, in a more physiologically relevant condition using DiBAC4(3) membrane potential measurements. The H60Y mutation uniquely causes a GOF of Kir6.1-SUR2B channels but does not cause GOF in Kir6.2-SUR2B channels. By a chimeric approach, we identify regions of both the very N and C termini of Kir6.1 that are responsible for this effect and further identify a specific residue, valine 334, in Kir6.1, which is necessary for the isoform specificity.
Expanding the literature on Cantú syndrome: recognising early clinical and phenotypic clues.
A late preterm (ex 35 weeks' gestation) male infant was referred at 5 weeks of age (term corrected) with respiratory distress and feeding difficulties which had been present since birth. Examination revealed hypertrichosis, coarse features, a harsh continuous murmur and 2 cm hepatomegaly. His echocardiogram identified a patent ductus arteriosus which failed initial medical treatment and required early device closure. Structural heart disease alongside characteristic phenotypic features, including hypertrichosis and coarse facial features, prompted targeted genetic evaluation which confirmed a pathogenic ABCC9 variant, diagnostic of Cantú syndrome. The early recognition of this rare diagnosis enabled coordinated multidisciplinary care and family counselling. This case expands the literature by highlighting early neonatal presentation and the importance of clinical suspicion based on characteristic features.
Control of neurovascular coupling by ATP-sensitive potassium channels.
Regional blood flow within the brain is tightly coupled to regional neuronal activity, a process known as neurovascular coupling (NVC). In this study, we demonstrate the striking role of SUR2- and Kir6.1-dependent ATP-sensitive potassium (KATP) channels in control of NVC in the sensory cortex of conscious mice, in response to mechanical stimuli. We demonstrate that either globally increased (pinacidil-activated) or decreased (glibenclamide-inhibited) KATP activity markedly disrupts NVC; pinacidil-activation is capable of completely abolishing stimulus-evoked cortical hemodynamic responses, while glibenclamide slows and reduces the response. The response is similarly slowed and reduced in SUR2 KO animals, while animals expressing gain-of-function (GOF) mutations in Kir6.1, which underlie Cantú syndrome, exhibit baseline reduction of NVC as well as increased sensitivity to pinacidil. In revealing the dramatic effects of either increasing or decreasing SUR2/Kir6.1-dependent KATP activity on NVC, whether pharmacologically or genetically induced, the study has important implications both for monogenic KATP channel diseases and for more common brain pathologies.
Muscle fatigue arising intrinsically from SUR2- but not Kir6.1-dependent gain-of-function in Cantu syndrome mice.
Cantu syndrome (CS) is a rare disease caused by gain-of-function (GOF) mutations of Kir6.1 or SUR2 subunits of ATP-sensitive potassium (KATP) channels. CS patients with SUR2 and Kir6.1 variants display a similar constellation of symptoms, including muscle weakness and fatigue. The effects of CS mutations on skeletal muscle KATP channels, and any consequent direct effects on contractility, are currently unclear. Here, we used two knock-in mouse models of CS, respectively, carrying GOF mutations Kir6.1[V65M] or SUR2[A478V], to assess KATP channel properties and contractility in isolated fast-twitch extensor digitorum longus (EDL) and slow-twitch soleus (SOL) muscles. Electrophysiological recordings in isolated myofibers showed normal resting potentials, and excised patch-clamp recordings showed normal KATP channel density in both genotypes, but enhanced Mg-nucleotide activation only in SUR2[A478V] fibers, consistent with muscle KATP channels being formed predominantly as complexes of SUR2A and Kir6.2 subunits. Ex vivo testing of isolated SUR2[A478V], but not Kir6.1[V65M], muscles showed an earlier onset of fatigue and a marked intra-tetanic decline of force compared with littermate controls. Importantly, normal contractile behavior was restored ex vivo and in vivo in SUR2[A478V] muscles in the presence of the FDA-approved KATP channel inhibitor glibenclamide, indicating that the increased fatigue of isolated muscles is a direct consequence of overactive sarcolemmal KATP channels. These results shed light on the pathophysiologic relevance of SUR2-dependent KATP channel subunits in skeletal muscle and highlight their role in fatiguing conditions, as well as identifying potential therapeutic benefit of skeletal muscle KATP inhibition in CS.
Publicações recentes
The Voice of Cantú: Lower Voice Pitch Is a New Phenotypic Feature of Cantú Syndrome.
Cantu syndrome-associated SUR2[H60Y] mutation confers selective gain of function on Kir6.1 ATP-sensitive potassium channels.
Expanding the literature on Cantú syndrome: recognising early clinical and phenotypic clues.
Muscle fatigue arising intrinsically from SUR2- but not Kir6.1-dependent gain-of-function in Cantu syndrome mice.
📚 EuropePMC85 artigos no totalmostrando 94
The Voice of Cantú: Lower Voice Pitch Is a New Phenotypic Feature of Cantú Syndrome.
American journal of medical genetics. Part ACantu syndrome-associated SUR2[H60Y] mutation confers selective gain of function on Kir6.1 ATP-sensitive potassium channels.
The Journal of biological chemistryExpanding the literature on Cantú syndrome: recognising early clinical and phenotypic clues.
BMJ case reportsMuscle fatigue arising intrinsically from SUR2- but not Kir6.1-dependent gain-of-function in Cantu syndrome mice.
The Journal of general physiologyGain-of-function mutations in KATP channel subunits compromise colonic tight junction integrity and epithelial homeostasis in murine models of Cantú syndrome.
Frontiers in medicineMore than a Diagnosis: How Prenatal Identification of Cantú Syndrome Transformed a Family's Medical Narrative.
Journal of clinical medicineWITHDRAWAL: Cantú Syndrome: A New Case and Evolution of Clinical Conditions During First 2-Year Follow-Up.
Clinical case reportsBayliss-Starling Prize Lecture: KATP channel pathophysiology - a whole-body odyssey.
The Journal of physiologyTreatment of overactive KATP channels with glibenclamide in a zebrafish model and a clinical trial in humans with Cantú syndrome.
Scientific reportsCantú Syndrome With Acromegaloid Features, Multiple Endocrinopathies, and Infection Susceptibility.
JCEM case reportsControl of neurovascular coupling by ATP-sensitive potassium channels.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism[Clinical characteristics and genetic analysis of a child with Cantú syndrome due to variant of ABCC9 gene].
Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical geneticsMitochondrial Ca2+-coupled generation of reactive oxygen species, peroxynitrite formation, and endothelial dysfunction in Cantú syndrome.
JCI insightA novel ABCC9 variant in a Greek family with Cantu syndrome affecting multiple generations highlights the functional role of the SUR2B NBD1.
American journal of medical genetics. Part AElectrophysiology of Human iPSC-derived Vascular Smooth Muscle Cells and Cell-autonomous Consequences of Cantú Syndrome Mutations.
Function (Oxford, England)Multiple vascular anomalies and refractory pericardial effusion in a young patient with Cantu syndrome: a case report and review of the literature.
BMC pediatricsRapid Characterization of the Functional and Pharmacological Consequences of Cantú Syndrome KATP Channel Mutations in Intact Cells.
The Journal of pharmacology and experimental therapeuticsThe Role of Ion Channels in Functional Gastrointestinal Disorders (FGID): Evidence of Channelopathies and Potential Avenues for Future Research and Therapeutic Targets.
International journal of molecular sciencesElectrophysiology of human iPSC-derived vascular smooth muscle cells and cell autonomous consequences of Cantu Syndrome mutations.
bioRxiv : the preprint server for biologyOveractive ATP-Sensitive K+ Channels Compromise Lymphatic Contractile Function in Cantú Syndrome.
Function (Oxford, England)Lymphatic contractile dysfunction in mouse models of Cantú Syndrome with KATP channel gain-of-function.
Function (Oxford, England)Immunohistochemical, pharmacovigilance, and omics analyses reveal the involvement of ATP-sensitive K+ channel subunits in cancers: role in drug-disease interactions.
Frontiers in pharmacologyZoledronic Acid Blocks Overactive Kir6.1/SUR2-Dependent KATP Channels in Skeletal Muscle and Osteoblasts in a Murine Model of Cantú Syndrome.
CellsCantú syndrome: A new case and evolution of clinical conditions during first 2-year follow-up.
Clinical case reportsA Unique High-Output Cardiac Hypertrophy Phenotype Arising From Low Systemic Vascular Resistance in Cantu Syndrome.
Journal of the American Heart AssociationSerious complication of low-dose oral minoxidil for hair loss.
JAAD case reportsLymphedema as first clinical presentation of Cantu Syndrome: reversed phenotyping after identification of gain-of-function variant in ABCC9.
European journal of human genetics : EJHGA Cantú syndrome mutation produces dual effects on KATP channels by disrupting ankyrin B regulation.
The Journal of general physiologyPersonalized Therapeutics for KATP-Dependent Pathologies.
Annual review of pharmacology and toxicologyKir6.1 and SUR2B in Cantú syndrome.
American journal of physiology. Cell physiologyKATP channels in lymphatic function.
American journal of physiology. Cell physiologyCase Report: Loss-of-Function ABCC9 Genetic Variant Associated With Ventricular Fibrillation.
Frontiers in geneticsBisphosphonates Targeting Ion Channels and Musculoskeletal Effects.
Frontiers in pharmacologyCantù syndrome: Report of a patient with a novel variant in KCNJ8 and revision of literature.
American journal of medical genetics. Part ADevelopment of IKATP Ion Channel Blockers Targeting Sulfonylurea Resistant Mutant KIR6.2 Based Channels for Treating DEND Syndrome.
Frontiers in pharmacologyEyelash trichomegaly: a systematic review of acquired and congenital aetiologies of lengthened lashes.
Journal of the European Academy of Dermatology and Venereology : JEADVATP-sensitive potassium channels in zebrafish cardiac and vascular smooth muscle.
The Journal of physiologyApproach to the Patient With Pseudoacromegaly.
The Journal of clinical endocrinology and metabolismVascular KATP channel structural dynamics reveal regulatory mechanism by Mg-nucleotides.
Proceedings of the National Academy of Sciences of the United States of AmericaDiverse clinical manifestations of Cantú syndrome: The first case series in Vietnam.
American journal of medical genetics. Part AConsequences of SUR2[A478V] Mutation in Skeletal Muscle of Murine Model of Cantu Syndrome.
CellsYoung adult with Cantú syndrome: dealing with a rare genetic skin disorder.
BMJ case reportsATP-sensitive potassium channels: key players in pathophysiology of many diseases.
Casopis lekaru ceskychBehavioral and cognitive functioning in individuals with Cantú syndrome.
American journal of medical genetics. Part ACorrigendum: A novel mutation in the KCNJ8 gene encoding the Kir6.1 subunit of an ATP-sensitive potassium channel in a Japanese patient with Cantú syndrome.
Journal of the European Academy of Dermatology and Venereology : JEADVComplex consequences of Cantu syndrome SUR2 variant R1154Q in genetically modified mice.
JCI insightPathophysiological Consequences of KATP Channel Overactivity and Pharmacological Response to Glibenclamide in Skeletal Muscle of a Murine Model of Cantù Syndrome.
Frontiers in pharmacologyGeneralized hypertrichosis syndromes in Mexico.
American journal of medical genetics. Part C, Seminars in medical geneticsKir6.1- and SUR2-dependent KATP overactivity disrupts intestinal motility in murine models of Cantú syndrome.
JCI insightCantú syndrome with novel pathogenic variant in nucleotide-binding domain 1 of ABCC9.
Pediatrics international : official journal of the Japan Pediatric SocietyThe Mechanism of High-Output Cardiac Hypertrophy Arising From Potassium Channel Gain-of-Function in Cantú Syndrome.
Function (Oxford, England)The Pathophysiology of Cardiac Abnormalities in Cantu Syndrome: Perspective on "The Mechanism of High-Output Cardiac Hypertrophy Arising From Potassium Channel Gain-of-Function in Cantú Syndrome".
Function (Oxford, England)Cantú syndrome versus Zimmermann-Laband syndrome: Report of nine individuals with ABCC9 variants.
European journal of medical genetics"Electrifying dysmorphology": Potassium channelopathies causing dysmorphic syndromes.
Advances in geneticsKir6.1-dependent KATP channels in lymphatic smooth muscle and vessel dysfunction in mice with Kir6.1 gain-of-function.
The Journal of physiologyA novel mutation in the KCNJ8 gene encoding the Kir6.1 subunit of an ATP-sensitive potassium channel in a Japanese patient with Cantú syndrome.
Journal of the European Academy of Dermatology and Venereology : JEADVNovel variants of ABCC9 in Japanese children with Cantú syndrome.
Pediatrics international : official journal of the Japan Pediatric SocietyThree-dimensional facial morphology in Cantú syndrome.
American journal of medical genetics. Part AThe surprising complexity of KATP channel biology and of genetic diseases.
The Journal of clinical investigationCantu syndrome: A longitudinal review of vascular findings in three individuals.
American journal of medical genetics. Part ASkin and hair abnormalities of Cantu syndrome: A congenital hypertrichosis due to a genetic alteration mimicking the pharmacological effect of minoxidil.
The Journal of dermatologyCantú syndrome: Findings from 74 patients in the International Cantú Syndrome Registry.
American journal of medical genetics. Part C, Seminars in medical geneticsCantú syndrome as a rare cause of pericardial effusion in a young woman.
British journal of hospital medicine (London, England : 2005)Glibenclamide reverses cardiovascular abnormalities of Cantu syndrome driven by KATP channel overactivity.
The Journal of clinical investigationCantu syndrome and hypopituitarism: implications for endocrine monitoring.
Endocrinology, diabetes & metabolism case reportsDilated and tortuous retinal vessels as a sign of Cantu syndrome.
Ophthalmic geneticsABCC9-related Intellectual disability Myopathy Syndrome is a KATP channelopathy with loss-of-function mutations in ABCC9.
Nature communicationsYou "Cantu": Multidisciplinary Collaboration Resulting in Successful Orthognathic Surgery.
The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial AssociationComputational Identification of Novel Kir6 Channel Inhibitors.
Frontiers in pharmacologyGlibenclamide treatment in a Cantú syndrome patient with a pathogenic ABCC9 gain-of-function variant: Initial experience.
American journal of medical genetics. Part AGlibenclamide and HMR1098 normalize Cantú syndrome-associated gain-of-function currents.
Journal of cellular and molecular medicineAortic and pulmonary artery dilatation in Cantu syndrome: expanding the phenotype.
Clinical dysmorphologyEffective CRISPR/Cas9-based nucleotide editing in zebrafish to model human genetic cardiovascular disorders.
Disease models & mechanismsCardiovascular consequences of KATP overactivity in Cantu syndrome.
JCI insightNovel mutation in ABBC9 gene associated with congenital hypertrichosis and acromegaloid facial features, without cardiac or skeletal anomalies: a new phenotype.
The application of clinical geneticsCantú syndrome, the changing phenotype: a report of the two oldest Dutch patients.
Clinical dysmorphologyCantú syndrome with coexisting familial pituitary adenoma.
EndocrineCantu syndrome-associated SUR2 (ABCC9) mutations in distinct structural domains result in KATP channel gain-of-function by differential mechanisms.
The Journal of biological chemistryConserved functional consequences of disease-associated mutations in the slide helix of Kir6.1 and Kir6.2 subunits of the ATP-sensitive potassium channel.
The Journal of biological chemistryCantú Syndrome Associated with Ovarian Agenesis.
Molecular syndromologyClinical and Molecular Delineation of a Novel Cys1050Phe Missense Mutation in the ABCC9 Gene in a Korean Patient with Cantú Syndrome.
Clinical laboratoryClinical utility gene card for: Cantú syndrome.
European journal of human genetics : EJHGIncreased tolerance to stress in cardiac expressed gain-of-function of adenosine triphosphate-sensitive potassium channel subunit Kir6.1.
The Journal of surgical research[A new type of ATP-sensitive potassium channelopathy : Cantú syndrome].
No to hattatsu = Brain and developmentNeurologic and neuroimaging manifestations of Cantú syndrome: A case series.
NeurologyAdenosine Triphosphate-Sensitive Potassium Currents in Heart Disease and Cardioprotection.
Cardiac electrophysiology clinicsK(ATP) channel gain-of-function leads to increased myocardial L-type Ca(2+) current and contractility in Cantu syndrome.
Proceedings of the National Academy of Sciences of the United States of AmericaThe shifting landscape of KATP channelopathies and the need for 'sharper' therapeutics.
Future medicinal chemistryDe Novo Mutation in ABCC9 Causes Hypertrichosis Acromegaloid Facial Features Disorder.
Pediatric dermatologyDifferential mechanisms of Cantú syndrome-associated gain of function mutations in the ABCC9 (SUR2) subunit of the KATP channel.
The Journal of general physiologyTopical sulfonylurea as a novel therapy for hypertrichosis secondary to diazoxide, and potentially for other conditions with excess hair growth.
Medical hypothesesModeling Clinical States and Metabolic Rhythms in Bioarcheology.
BioMed research internationalABCC9/SUR2 in the brain: Implications for hippocampal sclerosis of aging and a potential therapeutic target.
Ageing research reviewsElectrophysiologic consequences of KATP gain of function in the heart: Conduction abnormalities in Cantu syndrome.
Heart rhythmAssociações
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Comunidades
Grupos ativos de quem convive com esta doença aqui no Raras
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Referências e fontes
Bases de dados externas citadas neste artigo
Publicações científicas
Artigos indexados no PubMed ligados a esta doença no grafo RarasNet — título, periódico e PMID direto da fonte, sem intermediação de IA.
- The Voice of Cantú: Lower Voice Pitch Is a New Phenotypic Feature of Cantú Syndrome.
- Cantu syndrome-associated SUR2[H60Y] mutation confers selective gain of function on Kir6.1 ATP-sensitive potassium channels.
- Expanding the literature on Cantú syndrome: recognising early clinical and phenotypic clues.
- Control of neurovascular coupling by ATP-sensitive potassium channels.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism· 2025· PMID 39819176mais citado
- Muscle fatigue arising intrinsically from SUR2- but not Kir6.1-dependent gain-of-function in Cantu syndrome mice.
- Cantú Syndrome.
Bases de dados e fontes oficiais
Identificadores e referências canônicas usadas para montar este verbete.
- ORPHA:1517(Orphanet)
- OMIM OMIM:239850(OMIM)
- MONDO:0009406(MONDO)
- GARD:8585(GARD (NIH))
- Variantes catalogadas(ClinVar)
- Busca completa no PubMed(PubMed)
- Q5034093(Wikidata)
Dados compilados pelo RarasNet a partir de fontes abertas (Orphanet, OMIM, MONDO, PubMed/EuropePMC, ClinicalTrials.gov, DATASUS, PCDT/MS). Este conteúdo é informativo e não substitui avaliação médica.
Conteúdo mantido por Agente Raras · Médicos e pesquisadores podem colaborar
