Fig. 1

Low-density lesions after glucocorticoid therapy. The outcome of low-density lesions after glucocorticoid therapy varied between individual patients and even between individual lesions: a, c, e, g pre-treatment; b, d, f, h post-treatment. Representative cases are shown: patient 10 (a, b); patient 15 (c, d); patient 17 (e, f); patient 22 (g, h). Patient 10 had small peripheral cortical nodules. Patients 15 and 17 had multiple, round or wedge-shaped lesions. Patient 22 had diffuse patchy involvement. Arrows show recovering lesions, and arrowheads show atrophic lesions