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Tissue Triage and Freezing for Models of Skeletal Muscle Disease
Published on: July 15, 2014
A TPM3 mutation causing cap myopathy
Andre Maues De Paula1, Jerome Franques, Carla Fernandez
1Department of Anatomic Pathology and Neuropathology, C.H.U. Timone, Marseille, France. Andre.MauesDePaula@ap-hm.fr
Abstract:
Cap disease is a rare congenital myopathy associated with skeletal malformations and respiratory involvement. Abnormally arranged myofibrils taking the appearance of a "cap" are the morphological hallmark of this entity. We report a case of cap disease concerning a 42-year-old man, without any family history and presenting a p.Arg168His mutation on the TPM3 gene. His first biopsy at 7years had only shown selective type I hypotrophy. Mutations of TPM3 gene have been found in nemaline myopathy, congenital fiber type disproportion, but never before in cap disease.
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