New histochemical and ultrastructural observations on normal bovine tonsils
- M. Velinova, MD, PhD1,
- C. Thielen, MSc1,
- F. Mklot, MSc1,
- S. Eicher, MSc1,
- E. Heinen, PhD1,
- N. Antoine, PhD1 and
- J. Donga2
Abstract
Samples of normal bovine palatine tonsils were examined by light and electron microscopy. Like human tonsils, they were composed of crypts, subepithelial areas, follicles, and T-dependent zones, but their welldeveloped capsule subdivided the lymphoid tissue by connective septa. B cells formed the major lymphoid component. The follicles and T-dependent zones had morphological and histochemical features typical of peripheral lymph organs. Follicular dendritic cells were isolated and shown to be similar to human follicular dendritic cells.
- British Veterinary Association. All rights reserved.
