Figure 4.

(A) Intraosseous lipoma of the calcaneus with the typical central mineralization (white arrow). (B) Histology shows the typical lobules of white adipocytes. (C) Sagittal CT scan of a foot in a patient with Maffucci syndrome. (D) Microscopic appearance of a Maffucci syndrome, with numerous hemangiomas and hypocellular areas with an abundance of hyaline cartilage matrix. (E) Pathological fracture of the proximal foot phalange of the fifth finger in a patient with enchondroma (white arrows), that appears as an osteolytic lesion containing typical ‘pop-corn’ opacities on X-ray; (F) MRI shows cartilaginous tissue with a high signal intensity on T2-weighted sequence.