Verse 1: Appendicitis) In the land of kids, where the tummy's a mess, Appendicitis comes to cause some stress. Most common it is, from twelve to eighteen, But under five? It’s rarely seen. Obstruction in the lumen, faeces too thick, Bacteria grow, making everyone sick. Malaise, fever, pain starts in the middle, Moves to the right, and it’s no riddle. If diagnosis is late, within forty-eight, Perforation is likely, don’t hesitate. Atypical cases may bring some surprise, But always check for RIF pain in the eyes. (Chorus) Paediatric surgery, a world so small, Where every symptom matters, we watch them all. From the testes undescended to the hydro-seal, We treat with care, that’s the deal. (Verse 2: Malrotation) Malrotation in the gut, oh what a sight, In infants, it’s an urgent midnight fight. Volvulus spins, causing sudden collapse, But sometimes it’s just recurrent traps. Pain, vomiting, distension too, Diagnosis can be tricky, but we know what to do. A GI series might show the way, Laparotomy fixes it, without delay. (Bridge: Undescended Testes) The testes start their journey down, But sometimes one just sticks around. Four-point-five percent, they say, But by four months, most make their way. If they don’t, and it’s bilaterally done, Check for intersex, the battle's begun. Histology changes by six months old, Repair them quick, before the future’s told. (Verse 3: Torsion and Hydrocoele) Torsion of the testis, pain and swelling so acute, Gangrene can occur in just four hours, absolute. It’s common in teens, but rare before ten, Treat it fast, and they’ll heal again. hydro-seals shine with a brilliant light, But they’ll likely disappear, no need to fight. Yet if they stay past eighteen months' time, Surgery’s needed, that’s the bottom line. (Chorus) Paediatric surgery, a world so small, Where every symptom matters, we watch them all. From the testes undescended to the hydro-seal, We treat with care, that’s the deal. (Outro) So remember this song, in your exam days, Paediatric surgery knowledge pays. From appendicitis to testes not found, In every case, keep your diagnosis sound. With the notes in mind and this melody, You’ll conquer paediatric surgery with glee.