Beyond Infantile Hemangiomas: A Glimpse into Overlapping Rare Syndromes Emphasizing the Vigilant Screening for PHACE and LUMBAR Syndromes.

Infantile hemangiomas are the most common birthmark in newborns. They are clinically diagnosed and usually self-limited. However, there are several exceptions with aggressive types of hemangiomas that can be associated with extracutaneous anomalies, such as PHACE syndrome (posterior fossa anomalies, upper body hemangiomas, arterial anomalies, cardiac anomalies, and eye anomalies) and LUMBAR syndrome (lower body hemangiomas, ulcerations/urogenital anomalies, myelopathies, bony deformities, anorectal malformations/arterial anomalies, and renal anomalies). These two syndromes, described in the literature with distinct features, have rarely been reported in the same patient. We discuss one of the few cases reported with overlapping features of the PHACE and LUMBAR syndromes that initially presented with infantile hemangiomas, as well as other nonspecific skin and systemic findings. Minimal guidance has been described due to the need for more scientific literature. Our aim is to reinforce awareness of these two syndromes and the possibility of an overlap presentation between them. Furthermore, we emphasize the need for an interdisciplinary approach with screening for all known associations to avoid missing essential components of these syndromes that can lead to significant morbidity and lifetime complications.