Figure 2
From: Suggested Case of Langerhans Cell Histiocytosis in a Cretaceous dinosaur

Lesions in human vertebrae in an individual with documented Langerhans Cell Histiocytosis from the Terry collection (individual #129). (a) Spheroid-shaped lytic lesion in vertebral bodies, sparing the posterior spinal elements. (b) Periosteal reaction on the cortical shells with new bone formation. (c) Cortical bone resorption suggesting pressure lesions produced by a paravertebral tumor (eosinophilic granuloma) mass. (d) New bone projects from the anterior aspect of bodies. (e) A “space occupying mass” in the first left sacral foramina.