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Masson trichrome stain (A,B) does not show clear evidence of woven bone, as there is no increase in the number or size of osteocytes or an abnormal distribution. Thick layers of osteoid are present, covered by osteoblasts. Osteoclasts, of normal morphology, are also present (white arrowheads). Regardless of presence or absence of woven bone, the appearance is of high bone turnover.
