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Fig. 3 | BMC Cancer

Fig. 3

From: Role of ultrasound in the diagnosis of primary and recurrent dermatofibrosarcoma protuberans

Fig. 3

A 25-year-old man with recurrent DFSP in the back. A, Erythematous nodules at and near the old scar on the back were observed 6 years after surgery. B, US showed multiple ovoid lesions with hypoechogenicity forming tentacle-like projections or a “claw” sign (arrow). C, Color Doppler sonogram showing profuse blood flow throughout the mass. D, E, Hematoxylin-eosin staining showing high cellularity with slender spindle cells arranged in a distinct storiform pattern accumulating mainly in the underlying soft tissue

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