A 12-year-old child presented with sudden severe onset of scrotal pain after a history of trauma 6 hours before. Intraoperative image is given. What is the likely diagnosis?
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Testicular torsion is a surgical emergency, and prompt intervention within 6 hours is crucial to save the testis from gangrene.
Step 1: Build the clinical timeline. A 12-year-old boy - the peak age for testicular torsion - develops sudden, severe scrotal pain, and the operation is happening about 6 hours after onset. Torsion is a surgical emergency precisely because the spermatic cord twist throttles the blood supply.
Step 2: Apply the ischaemia clock. Once the cord twists, the testis becomes ischaemic. Salvage is excellent if detorsion happens within roughly 6 hours; beyond that window the gland progressively necroses, and by 6-12 hours frank gangrene is common. At the 6-hour mark, irreversible damage is already very likely.
Step 3: Read the intraoperative appearance against the clock. At surgery a torted, non-salvageable testis looks dusky/black, congested and non-viable - i.e. it has progressed past simple torsion into gangrene. So the picture is not merely a twisted but viable testis; it is torsion that has already infarcted.
Step 4: Sort the options. • Torsion testis alone describes the mechanism but understates the operative finding of necrosis. • Testicular haematoma implies a blood collection from trauma, not the cord-twist ischaemia seen here. • Gangrene of testis names the end-state but omits the causative torsion. The complete diagnosis must capture both the cause (torsion) and the consequence (gangrene).
Step 5: Conclusion. Sudden pain, peak age, a 6-hour ischaemic interval and a non-viable gland together indicate torsion that has gone on to gangrene.
Final answer: Option 1 - Torsion testis with gangrene.
