Distal myopathy with focal granular degenerative change in vacuolated type 2 fibers. 1988

M Swash, and M S Schwarz, and A Thompson, and E Cox, and A Gray
Department of Neurology, London Hospital, UK.

A slowly progressive distal myopathy with raised blood (CK) level commencing in the second decade was associated with large vacuoles found only in type 2 fibers. The vacuoles consisted of sarcoplasmic spaces without limiting membranes, containing granular and fibrillar material. This material probably represented degenerative products derived from myofibrils. A distinction is drawn between these degenerative vacuolar changes and those reported in other cases of sporadic or hereditary distal myopathy in which autophagic vacuoles are characteristic.

UI MeSH Term Description Entries
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D009135 Muscular Diseases Acquired, familial, and congenital disorders of SKELETAL MUSCLE and SMOOTH MUSCLE. Muscle Disorders,Myopathies,Myopathic Conditions,Muscle Disorder,Muscular Disease,Myopathic Condition,Myopathy
D009210 Myofibrils The long cylindrical contractile organelles of STRIATED MUSCLE cells composed of ACTIN FILAMENTS; MYOSIN filaments; and other proteins organized in arrays of repeating units called SARCOMERES . Myofilaments,Myofibril,Myofilament
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D012519 Sarcoplasmic Reticulum A network of tubules and sacs in the cytoplasm of SKELETAL MUSCLE FIBERS that assist with muscle contraction and relaxation by releasing and storing calcium ions. Reticulum, Sarcoplasmic,Reticulums, Sarcoplasmic,Sarcoplasmic Reticulums
D014617 Vacuoles Any spaces or cavities within a cell. They may function in digestion, storage, secretion, or excretion. Vacuole

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