Report of a New Case of Interlocking Heads in a Breech-Vertex Twin Delivery: A Conversation with My Residents

“Locked twins” is a rare event occurring in about 1 every 1000 twin births. A 21-year-old primigravida with 31-week pregnancy was admitted for delivery. The head of the first locked to chin of second at top the symphysis pubis. Caesarean section performed allowing delivery both dead twins. Twins gestations breech presentation raise index suspicion potential locked twin. However, management such situation controversial with most authors and colleges recommending caesarean avoid interlocking heads. We report another rare case heads bring up topic of breech-first deliveries.