{Reference Type}: Case Reports {Title}: Successful surgical management of a pyothorax in a Guinea baboon (Papio papio). {Author}: Sailler A;Laidebeure S;Lécu A; {Journal}: J Med Primatol {Volume}: 53 {Issue}: 3 {Year}: 2024 Jun {Factor}: 0.821 {DOI}: 10.1111/jmp.12698 {Abstract}: A 16-year-old male Guinea baboon (Papio papio) was evaluated for weakness and focal wet fur of 1-week duration. A pyothorax caused by Streptococcus anginosus was diagnosed. A surgical approach was chosen, combined with a systemic antibiotic therapy. Medical imaging and C-reactive protein follow-up revealed the resolution of the pyothorax.