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Congenital fibrous hamartoma of the knee

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Abstract

A full-term male infant presented at birth with a hard swelling of the left knee. The lemon-sized lesion was fixed to the underlying knee muscles, while the overlying skin was stretched and shiny; there was no bruit. Radiography, sonography and MRI suggested a soft-tissue tumour. After surgical excision, histology showed the presence of fibrous and mesenchymal tissue, with mature adipose tissue. Fibrous hamartoma of infancy was diagnosed. Among soft-tissue tumours, fibrous hamartoma of infancy is a rare and benign lesion, occurring in the first 2 years of life. The tumour mainly affects the trunk, axilla, and upper extremities. This infant had unique involvement of the knee. The treatment of choice is local excision.

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Correspondence to Carlo Bellini.

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Arioni, C., Bellini, C., Oddone, M. et al. Congenital fibrous hamartoma of the knee. Pediatr Radiol 36, 453–455 (2006). https://doi.org/10.1007/s00247-006-0126-1

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  • DOI: https://doi.org/10.1007/s00247-006-0126-1

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