Epidermoidzyste Finger

Pseudotumoural

soft tissue lesions of the hand and wrist: a pictorial review. Subcutaneous epidermoid cyst with involvement of the adjacent bone of the terminal phalanx of the right fifth finger. a Plain radiograph showing a well-defined osteolytic defect at the radial side of the distal phalanx. Note cortical destruction of the radial cortex. b Coronal SE T1-WI. The lesion is of intermediate signal intensity (arrows) with some internal areas of relatively high signal. c Coronal TSE T2-WI. High signal intensity of the lesion (arrows). d Coronal FS SE T1-WI after intravenous injection of gadolinium contrast medium. There is only subtle peripheral enhancement (arrows) of the lesion

Pseudotumoural

soft tissue lesions of the hand and wrist: a pictorial review. Subcutaneous epidermoid cyst at the phalanges (arrowheads). Longitudinal ultrasound showing a well-defined subcutaneous lesion with variable echogenicity (anechoic components and some internal hyperechoic debris)