regenerative changes from SD. Additionally, we assume that those changes are associated with involvement of various molecules other than TGF-β, although the exact pathway remains unknown. More studies are warranted to find the pathogenesis of LFE and association between LFE and SD. REFERENCES 1. Burket JM, Zelickson AS, Padilla RS. Linear focal elastosis (elastotic striae). J Am Acad Dermatol 1989;20:633-636. 2. Lewis KG, Bercovitch L, Dill SW, Robinson-Bostom L. Acquired disorders of elastic tissue: part I. Increased elastic tissue and solar elastotic syndromes. J Am Acad Dermatol 2004;51:1-21. 3. Hagari Y, Norimoto M, Mihara M. Linear focal elastosis associated with striae distensae in an elderly woman. Cutis 1997;60:246-248. 4. Chang SE, Park IJ, Moon KC, Koh JK. Two cases of linear focal elastosis (elastotic striae). J Dermatol 1998;25:395-399. 5. Hashimoto K. Linear focal elastosis: keloidal repair of striae distensae. J Am Acad Dermatol 1998;39:309-313. 6. Ahn GB, Chang SH, Yoon TY. Two cases of linear focal elastosis. Linear Focal Elastosis Following Striae Distensae Fig. 2. (A) Hypertrophic collagen bundles were separated by basophilic wavy fibers in the dermis without significant epi- dermal changes (H&E, ×100). (B) Fragmented (asterisk) or aggregated wavy elastic fibers are present between collagen bundles. Some elastic fibers show a feature resembling a paint- brush (arrow) (Verhoeff-van Gieson stain, ×200). (C) Immuno- histochemical study for TGF-β is negative in the dermal fibroblasts, although eccrine sweat glands normally show posi- tive staining (immunoperoxidase stain, ×100). Ann Dermatol 1999;11:117-120. 7. Chang SE, Lee JY, Choi JH, Sung KJ, Moon KC, Koh JK. Linear focal elastosis associated with striae distensae. Korean J Dermatol 2000;38:127-129. 8. Lim SH, Ha JH, Kang HA, Park HJ, Baek SC, Kim JW, et al. Linear focal elastosis associated with striae distensae in an atopic patient. Korean J Dermatol 2001;39:504-506. 9. Ramlogan D, Tan BB, Garrido M. Linear focal elastosis. Br J Dermatol 2001;145:188-190. 10. Inaloz HS, Kirtak N, Karakok M, Ozgoztasi O. Facial linear focal elastosis: a case report. Int J Dermatol 2003;42:558-560. 11. Hagari Y, Mihara M, Morimura T, Shimao S. Linear focal elastosis. An ultrastructural study. Arch Dermatol 1991;127:1365-1368. 12. Zheng P, Lavker RM, Kligman AM. Anatomy of striae. Br J Dermatol 1985;112:185-193. 13. Beer TW, Lam MH, Heenan PJ. Tumors of fibrous tissue involving the skin. In: Elder DE, Elenitsas R, Johnson BL, Murphy GF, Xu G, editors. Lever's histopathology of the skin. 10th ed. Philadelphia: Lippincott Williams & Wilkin, 2008:981-988. 14. Sato M. Upregulation of the Wnt/beta-catenin pathway induced by transforming growth factor-beta in hypertrophic scars and keloids. Acta Derm Venereol 2006;86:300-307. Vol. 23, Suppl. 2, 2011 S143