Rothmund-Thomson Syndrome and Osteoma Cutis in a Patient Previously Diagnosed As COPS Syndrome
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Conclusion: We conclude that COPS syndrome never existed as a separate syndrome entity. Instead, osteoma cutis may be regarded as a novel feature of RTS, whereas mild intellectual disability and lymphoma may be underreported parts of the phenotype. What is new: • Osteoma cutis was not a known feature in Rothmund-Thomson patients. • Intellectual disability may be considered a rare feature in RTS; more study is needed. What is known: • RTS is a well-described syndrome caused by mutations in the RECQL4 gene. • Patients with RTS frequently show chromosomal abnormalities like, e.g. mosaic trisomy 8.
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