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Publication
Alterações no crescimento craniofacial : perspetiva de um caso clínico
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Advisor(s)
Abstract(s)
Os bebés humanos, ao nascer, geralmente apresentam uma relação esquelética de classe II. Posteriomente, à medida que o crescimento vai ocorrendo, a mandíbula vai
gradualmente tomando um posicionamento mais anterior. A relação esquelética de classe I é alcançada, por norma, entre os quatro e os seis anos de idade.
Contudo, existem excepções. Uma dessas excepções é o caso clínico de uma paciente
de um ano e cinco meses de idade, gémea heterozigótica, prematura, de baixo peso à
nascença, que apresenta um hemangioma da parótida esquerda, sem sintomatologia
dolorosa, que regrediu sem tratamento antes de completar um ano de idade. Após a
regressão desenvolveu uma má oclusão de classe III.
Por não ser comum, achámos o caso interessante para o nosso estudo e, com isso,
pretendemos realizar uma pesquisa no sentido de tentarmos perceber o porquê deste
desvio do padrão de crescimento e sua eventual relação com a patologia da parótida.
Os hemangiomas são tumores vasculares benignos que afetam predominantemente
lactentes do sexo feminino, caucasianos, de baixo peso à nascença e prematuros.
Apresentam predileção pela zona cervicofacial e na sua maioria são esporádicos,
assintomáticos e não necessitam de qualquer intervenção. A menos que estejam
localizados em zonas de alto risco e possam comprometer estruturas nobres. Raramente causam complicações e, quando acontece, a ulceração é a mais frequente. Quanto ao seu envolvimento com as estruturas ósseas, tentaremos perceber ao longo deste trabalho qual é o papel destas lesões e se realmente podem ou não envolver o esqueleto craniofacial, modificando o seu padrão de crescimento.
The human newborns usually show a class II skeleton relation. Afterwards, as the growing phase develops, the jaw gradually positions itself at the back. A skeleton class I relation is usually reached in between four and six years of age. However, there are exceptions. One of those exceptions being the clinical case of a one year and five months patient, heterozygous twin, premature, low weight, showing a left parotid hemangioma, without pain symptoms, which has decreased before reaching one year of age. After the decrease, she has developed a class III malocclusion. Not being common, we found the case interesting for our study and, therefore, we intend to perform a research to understand the pattern deviation and its likely relation with the parotid pathology. Hemangiomas are benign vacular tumors affecting predominantly female newborns, caucasian, low weight and premature. The phenomena is usually found on the cervicofacial area and in its majority they are sporadic, assymptomatic and do not require any intervention. Unless they are located in high-risk areas and are able to compromisse noble structures. They rarely cause complexities and, whenever these happen, ulceration becomes more frequent. As regards to its envolvement with bone structures, we will try to understand along our study the role of lesions and if they might envolve the craniofacial skeleton, modifying its growing pattern along the way.
The human newborns usually show a class II skeleton relation. Afterwards, as the growing phase develops, the jaw gradually positions itself at the back. A skeleton class I relation is usually reached in between four and six years of age. However, there are exceptions. One of those exceptions being the clinical case of a one year and five months patient, heterozygous twin, premature, low weight, showing a left parotid hemangioma, without pain symptoms, which has decreased before reaching one year of age. After the decrease, she has developed a class III malocclusion. Not being common, we found the case interesting for our study and, therefore, we intend to perform a research to understand the pattern deviation and its likely relation with the parotid pathology. Hemangiomas are benign vacular tumors affecting predominantly female newborns, caucasian, low weight and premature. The phenomena is usually found on the cervicofacial area and in its majority they are sporadic, assymptomatic and do not require any intervention. Unless they are located in high-risk areas and are able to compromisse noble structures. They rarely cause complexities and, whenever these happen, ulceration becomes more frequent. As regards to its envolvement with bone structures, we will try to understand along our study the role of lesions and if they might envolve the craniofacial skeleton, modifying its growing pattern along the way.
Description
Dissertação para obtenção do grau de Mestre no Instituto Universitário Egas Moniz
Keywords
Desenvolvimento craniofacial Má oclusão Hemangioma Patologia vascular