The Journal of pediatrics · 2013
Variable clinical presentation of Shwachman-Diamond syndrome: update from the North American Shwachman-Diamond Syndrome Registry.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Myers Kasiani C, Bolyard Audrey Anna, Otto Barbara, Wong Trisha E, Jones Amanda T, Harris Richard E, Davies Stella M, Dale David C, Shimamura Akiko
Аннотация
OBJECTIVES: To investigate the range of clinical presentations for Shwachman-Diamond syndrome (SDS) with the long-term goal of improving diagnosis.
STUDY DESIGN: We reviewed the North American Shwachman-Diamond Syndrome Registry. Genetic reports of biallelic Shwachman-Bodian-Diamond syndrome mutations confirming the diagnosis of SDS were available for 37 patients.
RESULTS: Neutropenia was the most common hematologic abnormality at presentation (30/37, 81%); however, only 51% (19/37) of patients presented with the classic combination of neutropenia and steatorrhea. Absence of pancreatic lipomatosis on ultrasound or computed tomography scan, normal fecal elastase levels, and normal skeletal survey do not rule out the diagnosis of SDS. SDS was diagnosed in 2 asymptomatic siblings of SDS probands. Twenty-four of 37 patients (65%) had congenital anomalies.
CONCLUSION: Our cohort reveals a broad range of clinical presentation for SDS. Clues to the underlying diagnosis of SDS included cytopenias with a hypocellular marrow, congenital anomalies, family history, and myelodysplasia with clonal abnormalities frequently found in SDS. Reliance on classic clinical criteria for SDS would miss or delay diagnosis of a significant subset of patients with SDS.
STUDY DESIGN: We reviewed the North American Shwachman-Diamond Syndrome Registry. Genetic reports of biallelic Shwachman-Bodian-Diamond syndrome mutations confirming the diagnosis of SDS were available for 37 patients.
RESULTS: Neutropenia was the most common hematologic abnormality at presentation (30/37, 81%); however, only 51% (19/37) of patients presented with the classic combination of neutropenia and steatorrhea. Absence of pancreatic lipomatosis on ultrasound or computed tomography scan, normal fecal elastase levels, and normal skeletal survey do not rule out the diagnosis of SDS. SDS was diagnosed in 2 asymptomatic siblings of SDS probands. Twenty-four of 37 patients (65%) had congenital anomalies.
CONCLUSION: Our cohort reveals a broad range of clinical presentation for SDS. Clues to the underlying diagnosis of SDS included cytopenias with a hypocellular marrow, congenital anomalies, family history, and myelodysplasia with clonal abnormalities frequently found in SDS. Reliance on classic clinical criteria for SDS would miss or delay diagnosis of a significant subset of patients with SDS.