What are the types of conjoined twins?

What are the types of conjoined twins?

Conjoined twins are identified by specific terms. These terms describe the point of connection. Twins may be conjoined at the:

• Abdomen (omphalopagus).
• Chest (thoracopagus).
• Top of head down to the belly button, facing each other (cephalopagus).
• Head only (craniopagus).
• Pelvis, facing each other (ischipagus).
• Pelvis, side-to-side (parapagus).
• Rump-to-rump (pygopagus).
• Vertebral column (rachipagus).