Images in Neurology
November 1999

Tubular AggregatesTheir Continuity With Sarcoplasmic Reticulum

Author Affiliations

Copyright 1999 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.1999

Arch Neurol. 1999;56(11):1410-1411. doi:10.1001/archneur.56.11.1410

A 45-YEAR-OLD man complained of exercise-induced muscle pain, cramps, and stiffness. Muscle biopsy specimens revealed tubular aggregates (TAs) on light microscopy (Figure 1) and electron microscopy (Figure 2, A). Tubular aggregates may be found in various neuromuscular disorders1; they occur as irregular basophilic regions that are usually located at the edges in type II fibers (Figure 1).

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