Anncaliia algerae Microsporidial Myositis
Matthew R. Watts
, Renee C.F. Chan, Elaine Y.L. Cheong, Susan Brammah, Kate R. Clezy, Chiwai Tong, Deborah Marriott, Cameron E. Webb, Bobby Chacko, Vivienne Tobias, Alexander C. Outhred, Andrew S. Field, Michael V. Prowse, James V. Bertouch, Damien Stark, and Stephen W. Reddel
Author affiliations: Centre for Infectious Diseases and Microbiology Public Health, Westmead, New South Wales, Australia (M.R. Watts, C.E. Webb, A.C. Outhred); Pathology West–Institute for Clinical Pathology and Medical Research Westmead, Westmead (M.R. Watts, C.E. Webb); University of Sydney, Sydney, New South Wales, Australia (M.R. Watts, C.E. Webb, E.Y.L. Cheong, A.C. Outhred, S.W. Reddel); Concord Repatriation General Hospital, Concord West, New South Wales, Australia (R.C.F. Chan, E.Y.L. Cheong, S. Brammah, S.W. Reddel); Prince of Wales Hospital, Randwick, New South Wales, Australia (K.R. Clezy, C. Tong, J.V. Bertouch); St Vincent’s Hospital, Darlinghurst, New South Wales, Australia (D. Marriott, A.S. Field, D. Stark); John Hunter Hospital, Newcastle, New South Wales, Australia (B. Chacko); Liverpool Hospital, Liverpool, New South Wales, Australia (V. Tobias); Port Macquarie Base Hospital, Port Macquarie, New South Wales, Australia (M.V. Prowse)
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Figure 1
Figure 1. Light micrographs of muscle biopsy tissue from a 67-year-old man (case-patient A), New South Wales, Australia, showing microsporidial myositis caused by Anncaliia algeraeA) Necrotizing myositis with prominent inflammation and spores within the necrotic cytoplasm of a myocyte (arrow)Hematoxylin and eosin stainScale bar indicates 50 μmB) Numerous dark brown to black, 3- to 4-μm ovoid spores in necrotic myocytesWarthin-Starry stainScale bar indicates 20 μm.
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