4 resultados para AUTOSOMAL DOMINANT INHERITANCE

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Type I Neurofibromatosis (NF1) is an autosomal-dominant inheritable disorder, with an incidence of 1:3,000, and a prevalence of 1:4,000 to 5,000. Pathogenesis is based on mutations of the NF1 gene, a tumor suppressor gene encoding a cytoplasmic protein named neurofibromin that controls cellular proliferation. Patients affected by NF1 typically present with cutaneous neurofibromas, cafè au lait spots and eye involvement, but they can also be affected by various visceral tumors, such as neurofibromas (nodular or plexiform type), gastrointestinal stromal tumors or endocrine tumors, such as pheochromocytomas. Visceral neurofibromas are often asymptomatic but when growing in size they may present with pain, palpable abdominal mass, symptoms secondary to bowel obstruction or main vessels compression, and even gastrointestinal bleeding when mucosa or submucosa are involved. In these cases surgery becomes mandatory in order to remove all neoplastic tissue. The Authors describe a case of a young man affected by NF1 with associated retrocaval abdominal mass with compression and displacement of the inferior vena cava, thus requiring a complex surgical procedure.

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Introduction. Familial Atypical Multiple Mole-Melanoma Syndrome (FAMMM) is an autosomal dominant genodermatosis characterized by the presence of a high number of dysplastic nevi and family history of melanoma or pancreatic cancer. Melanomas in FAMMM patients tend to occur at a younger age, although they are clinically similar to sporadic melanomas in terms of overall survival. Case report. A 45 year-old woman with a family history of melanoma, a type II phototype and numerous (>100) nevi was admitted to our Department of Dermatology and Plastic Surgery. Over the past years, the patient underwent several surgical operations to remove pigmented lesions and two are dysplastic nevi. Since 1995, she underwent surgery to remove four melanomas. She is followed for skin examinations including dermoscopy. Conclusion. Identifying high-risk patients for melanoma represents a primary objective for the specialists that are involved in the management of this disease, especially in order to enact all the necessary surveillance and follow-up strategies.

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Hereditary angioedema (HAE) is a rare genetic disorder transmitted as an autosomal dominant trait, characterized by reduced plasma concentration or by the presence of non-functional C1 esterase inhibitor. Oedema caused by HAE mostly affects the skin and bowel and can induce swelling of genitalia. Oedema can be life threatening if it causes swelling of the larynx with obstruction of the airways. We describe the case of a 52-year-old man who presented a neurological emergency (coma), where the remarkable localization of the clinical manifestation and the unusual symptomatology hindered the correct diagnosis.

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Objectives: Autosomal dominant osteopetrosis (ADO) is a rare genetic disease characterized by increased bone mass and density due to defective bone resorption. The aim of this case study is to present the clinical and radiographic features of a 22-year-old male patient with ADO and to serve as a reminder that this rare disease should be considered in the differential diagnosis of chronic low back pain. Materials and methods: A 22-year-old patient with ADO is presented in this case report. Results: Clinical and radiographic features of the patient were consistent with ADO. Conclusions: ADO should be taken into consideration in differential diagnosis of low back pain.