Holt-Oram syndrome (HOS) is a rare genetic disorder that leads to upper-limb deformities and heart defects.
Mature cystic teratomas are the most common tumors in newborns and are usually found in the sacrococcygeal area; surgical removal is the primary treatment.
The case presented involves a male neonate with both HOS and a sacrococcygeal teratoma, marking the first report of this combination, highlighting the need for thorough evaluations for associated congenital anomalies in such patients.