“The disease stems from an accumulation of a white blood cell called a histiocyte.”

“Findings at necropsy included a dose-related incidence of pulmonary histiocytosis and some decrease in organ weights.”

“Eosinophilic granuloma is a localised form of histiocytosis X, or Langerhans'cells histiocytosis, a benign form with unknown aetiology.”

“Malignant neoplasms only, exluding Langerhans cell histiocytosis, myelodysplastic syndrome, skin carcinomas, and benign brain tumours.”

“Multinucleated giant cells and single epithelioid histiocytes were often present in association with granulomas.”

“Among nonneoplastic cells, only hepatocytes and rare plasma cells and histiocytes show cytoplasmic positivity.”

“Acid-fast bacilli were numerous, both intracellularly in histiocytes and extracellularly in necrotic areas.”