3Calonje E, Mentzel T, Fletcher CD. Cellular benign fibrous histiocytoma. Clinicopathologic analysis of 74 cases of a distinctive variant of cutaneous fibrous histiocytoma with frequent recurrence. Am J Surg Pathol, 1994,18 (7) :668-676.
4Han T, Chang HS, Lee JHK, et al. A clinical and histopathological study of 122 cases of dermatofibroma (benign fibrous histiocytoma). Ann Dermato1,2011,23 ( 2 ) : 185-192.
5Fitzpatrick TB, Gilchrest BA. Dimple sign to differentiate benign from malignant pigmented cutaneous lesions. N Engl J Med,1977, 296(26) :1515.
6Requena L, Farifia MC, Fuente C, et al. Giant dermatofibroma. A little-known clinical variant of dermatofibroma. J Am Acad Dermatol,1994,30(5 Pt 1 ) :714-718.
7A1-Quran SZ, Russo JJ, Bandarchi-Chamkhaleh B, et al. CD34- positive myxoid dermatofibrohistiocytoma of the skin: an indolent post-traumatic tumor that can be mistaken for dermatofibrosarcoma protuberans. J Cutan Pathol,2009,36( 1 ) :84-86.
8Kutchemeshgi M, Barr RJ, Henderson CD. Dermatofibroma with osteoclast-like giant cells. Am J Dermatopathol,1992,14(5) :397- 401.
9Kutzner H, Mentzel T, Palmedo G, et al. Plaque-like CD34- positive dermal fibroma ( " medallion-like dermal dendrocyte hamartoma " ) : clinicopathologic, immunohistochemical, andmolecular analysis of 5 cases emphasizing its distinction from superficial, plaque-like protuberans. Am J Surg Pathol,2010,34(2) :190-201.
10Joseph M, Colby TV, Swensen SJ, et al. Multiple cysticfibrohistiocytic tumors of the lung. Report of two cases. Mayo Clin Proc, 1990,65 ( 2 ) : 192-197.
