Fig. 2From: Clinicopathological features and BRAFV600E mutations in patients with isolated hypothalamic-pituitary Langerhans cell histiocytosis a. The lesion was predominantly composed of histiocytic cells and eosinophils (haematoxylin and eosin stain, 200×). b. The histiocytic cells were immunopositive for CD1a (400×). c. The histiocytic cells were immunopositive for Langerin (400×). d. The histiocytic cells were immunopositive for S-100 (400×)Back to article page