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MUSCLE HEMANGIOMATOSIS PRESENTING AS A SEVERE FEATURE IN A PATIENT WITH THE PTEN MUTATION: EXPANDING THE PHENOTYPE OF VASCULAR MALFORMATIONS IN BANNAYAN-RILEY-RUVALCABA SYNDROME
(MACEDONIAN ACAD SCIENCES ARTS, 2012-01-01) Soysal, Y.; Acun, T.; Lourenco, C. M.; Marques Jr., W.; Yakicier, M. C.
Bannayan-Riley-Ruvalcaba syndrome (BRRS) is a rare autosomal, dominantly-inherited, hamartoma syndrome with distinct phenotypic features. Mutations in the PTEN gene have been identified in PTEN hamartoma tumor syndromes. Our aim was to determine the correlation of phenotype-genotype relationships in a BRRS case. We have evaluated a PTEN mutation in a patient with vascular anomalies and the phenotypic findings of BRRS. We described an 8-year-old girl with the clinical features of BRRS, specifically with vascular anomalies. The mutation in the PTEN gene was identified by DNA sequencing. In our patient, we defined a de novo nonsense R335X (c. 1003 C>T) mutation in exon 8, which results in a premature termination codon. Due to vascular anomalies and hemangioma, the patient's left leg was amputated 1 year after the hemangioma diagnosis. Bannayan - Riley - Ruvalcaba syndrome patients with macrocephaly and vascular anomalies should be considered for PTEN mutation analysis and special medical care.
Genetic and Epigenetic Alterations of PTPRD in Hepatocellular Carcinoma
(ELSEVIER SCI LTD, 2012-01-01) Acun, T.; Demir, K.; Oztas, E.; Yakicier, M. C.