Myopathy in the York Platelet Syndrome: An Underrecognized Complication

York Platelet Syndrome (YPS) is a calcium channelopathy caused by gain of function in STIM1, a gene which acts as a calcium sensor. It is characterized by platelet abnormalities and muscle weakness. Medical literature emphasizes the hematologic aspects of the cases with few data of the neuromuscular...

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Main Authors: Joy Roman, Michael I. Palmer, Cheryl A. Palmer, Nicholas E. Johnson, Russell J. Butterfield
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Case Reports in Pathology
Online Access:http://dx.doi.org/10.1155/2018/5130143
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author Joy Roman
Michael I. Palmer
Cheryl A. Palmer
Nicholas E. Johnson
Russell J. Butterfield
author_facet Joy Roman
Michael I. Palmer
Cheryl A. Palmer
Nicholas E. Johnson
Russell J. Butterfield
author_sort Joy Roman
collection DOAJ
description York Platelet Syndrome (YPS) is a calcium channelopathy caused by gain of function in STIM1, a gene which acts as a calcium sensor. It is characterized by platelet abnormalities and muscle weakness. Medical literature emphasizes the hematologic aspects of the cases with few data of the neuromuscular and neuropathologic evaluation. We present a patient with YPS whose myopathy was the most prominent aspect. She presented around 2 years of age with proximal weakness and easy bruisability. YPS was diagnosed in the infant at 16 months of age at the National Institutes of Health. Muscle biopsy demonstrated a severe chronic myopathy. Rimmed vacuoles and tubular aggregates were noted. Although YPS is rare, the combination of a congenital myopathy with thrombocytopenia may facilitate the diagnosis and enable further insights into the disease.
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publishDate 2018-01-01
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series Case Reports in Pathology
spelling doaj-art-66c830a44f5f4145881a4c8cd4ceaa022025-02-03T01:11:12ZengWileyCase Reports in Pathology2090-67812090-679X2018-01-01201810.1155/2018/51301435130143Myopathy in the York Platelet Syndrome: An Underrecognized ComplicationJoy Roman0Michael I. Palmer1Cheryl A. Palmer2Nicholas E. Johnson3Russell J. Butterfield4Department of Pathology, University of Utah, Salt Lake City, UT, USADepartment of Pathology, University of Utah, Salt Lake City, UT, USADepartment of Pathology, University of Utah, Salt Lake City, UT, USADepartment of Pathology, University of Utah, Salt Lake City, UT, USADepartment of Neurology, University of Utah, Salt Lake City, UT, USAYork Platelet Syndrome (YPS) is a calcium channelopathy caused by gain of function in STIM1, a gene which acts as a calcium sensor. It is characterized by platelet abnormalities and muscle weakness. Medical literature emphasizes the hematologic aspects of the cases with few data of the neuromuscular and neuropathologic evaluation. We present a patient with YPS whose myopathy was the most prominent aspect. She presented around 2 years of age with proximal weakness and easy bruisability. YPS was diagnosed in the infant at 16 months of age at the National Institutes of Health. Muscle biopsy demonstrated a severe chronic myopathy. Rimmed vacuoles and tubular aggregates were noted. Although YPS is rare, the combination of a congenital myopathy with thrombocytopenia may facilitate the diagnosis and enable further insights into the disease.http://dx.doi.org/10.1155/2018/5130143
spellingShingle Joy Roman
Michael I. Palmer
Cheryl A. Palmer
Nicholas E. Johnson
Russell J. Butterfield
Myopathy in the York Platelet Syndrome: An Underrecognized Complication
Case Reports in Pathology
title Myopathy in the York Platelet Syndrome: An Underrecognized Complication
title_full Myopathy in the York Platelet Syndrome: An Underrecognized Complication
title_fullStr Myopathy in the York Platelet Syndrome: An Underrecognized Complication
title_full_unstemmed Myopathy in the York Platelet Syndrome: An Underrecognized Complication
title_short Myopathy in the York Platelet Syndrome: An Underrecognized Complication
title_sort myopathy in the york platelet syndrome an underrecognized complication
url http://dx.doi.org/10.1155/2018/5130143
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AT nicholasejohnson myopathyintheyorkplateletsyndromeanunderrecognizedcomplication
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