Congenital dermatofibrosarcoma protuberans in a seven-month-old infant initially misdiagnosed as infantile myofibroma: A case report

Table 1 Summary of congenital dermatofibrosarcoma protuberans case series (≥ 3 cases)

Ref.	Cases	Presentation/location	Size	Diagnostic delay	Treatment (margin)	Outcome (followup)
Maire et al[6], 2007	9	8 plaques, 1 nodule; trunk (4), lower extremity (2), other (3); all initially suspected benign	< 0.5-10 cm (most > 4 cm)	5.5 months-15 years	Wide excision; reexcision for positive margins (3)	2 cases NED at 7 months and 6 months; 1 untreated (family refused); others NR
Terrier-Lacombe et al[7], 2003	2	Buttock and thigh	2-3 cm	Born with lesions	Wide excision	1 NED at 36 months; 1 NA
Posso-De Los Rios et al[8], 2014	7	Trunk: Back (4), abdomen (1); scalp (1); genital (1); 4 masses, 2 nodules, 1 atrophic plaque	Mean 3.0 ± 1.4 cm	Mean 6.1 years	WLE (majority); margins 1-4 cm; reexcision for positive margins (2), imatinib (1 case)	No recurrence (mean 3.0 years; range 1 months - 8 years)
Weinstein et al[9], 2003	6	Scalp, ankle, back (2), neck, thigh; 50% in atypical locations (scalp, neck, ankle); all initially misdiagnosed	0.7-3 cm	5 months-14 years	WLE (5), MMS (1); 4/6 positive margins → reexcision	3 NED (1-6 years); 1 recurrence; 1 LFU; 0 metastasis

NED: No evidence of disease; NR: Not reported; WLE: Wide local excision; MMS: Mohs micrographic surgery; LFU: Lost to follow-up.