1. Fig. (10): A stallion with unilateral guttural pouch
tympany (a), deflation of the affected side (b) after
decompression of the right non-affected side.

2. Fig. (11): Three years old donkey with bilateral
guttural pouch tympany (a), modified Whitehouse
technique with removal of a piece of the median
septum between the two pouches (b) and postoperative wound drainage and decompression of
).the pouch (c

3. Fig. (12): A foal with extended neck, dilated nostrils and
regurgitation of the milk (a). The animal showed bilateral
distension of the guttural pouch because of the empyema
before drainage (b), and drainage of inspissated pus through
stab-incision at the site of Vyborg's triangle (c).

4. Fig. (13): Unilateral guttural pouch empyema (a), landmark of
surgical approach (b), modified Whitehouse approach in
standing position and irrigation with a large syringe through a
large Foley catheter (c0, and after complete relief of the signs
(d).