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- Presentation
Diagnosis and Workup of Congenital Hemangiomas and Other Infant Vascular Masses
Description
The speaker explains how to diagnose congenital hemangiomas and distinguish them from infantile hemangiomas and other vascular masses in infants. True congenital hemangiomas are fully formed at birth, often bluish-purple with a pale vasoconstricted rim and sometimes ropey telangiectasias; they may involute, partially involute, or persist, and most require only observation because propranolol does not help. Very large lesions can rarely cause high-output cardiac failure and need urgent children’s hospital care. The talk emphasizes careful history, especially asking parents for a birth photo, because a mass present at birth points away from infantile hemangioma. Several important mimickers are reviewed: kaposiform hemangioendothelioma, which is painful, infiltrative, and associated with Kasabach-Merritt phenomenon; tufted angioma, a more benign cousin with minor coagulopathy; leukemia cutis; multifocal lymphangioendotheliomatosis with thrombocytopenia; Langerhans cell histiocytosis; and nonvascular tumors such as fibrosarcoma, peripheral nerve sheath tumor, and lipomyelomeningocele/tethered cord presenting as lumbar masses. Ultrasound is the first-line imaging test but can mislead, MRI can help, and biopsy remains the gold standard when the lesion is atypical, rapidly growing, painful, or not behaving as expected. The overall message is to recognize red flags, use imaging thoughtfully, and refer or biopsy promptly when the diagnosis is uncertain.
View moreConclusions
- Congenital hemangiomas are true vascular tumors formed in utero and fully present at birth, so they should not be confused with infantile hemangiomas.
- Most congenital hemangiomas can be observed, and many involute partially or completely without medical treatment.
- The most important initial step in evaluating a suspected birthmark is confirming from family photos whether the lesion was truly present at birth.
- Ultrasound is a useful first-line test for a congenital mass, but it is not definitive and can mislabel non-vascular tumors as hemangiomas.
- If a lesion is painful, rapidly enlarging, infiltrative, or otherwise atypical, clinicians should escalate quickly to specialty referral, MRI, and often biopsy.
- Kaposiform hemangioendothelioma is a key dangerous mimic because it can present as a bruise-like vascular lesion with pain and Kasabach-Merritt phenomenon.
- Tufted angioma is a more benign cousin of kaposiform hemangioendothelioma and may cause only mild coagulopathy and tenderness.
- Very large congenital hemangiomas can rarely cause high-output cardiac failure or severe coagulopathy and require urgent tertiary care.
- Congenital hemangiomas can reactivate or become symptomatic later in life, including during puberty or pregnancy, even after appearing to involute.
- Multiple vascular-appearing lesions in a newborn should prompt biopsy because they may represent entities such as leukemia cutis, multifocal lymphangioendotheliomatosis, or other serious disorders.
- Imaging alone cannot reliably distinguish all congenital vascular masses from non-vascular tumors, so pathology remains the gold standard when the diagnosis is unclear.
- Lumbar masses in infancy require prompt workup with MRI because delayed diagnosis can miss tethered cord or lipomyelomeningocele and lead to permanent neurologic injury.
- The overall management principle is to recognize dangerous exceptions early, refer appropriately, and not assume every congenital mass is a benign hemangioma.
- PMID: 31576603
- Catastrophic congenital hemangioma with severe coagulopathy leading to fatal cardiac failure: Case report and review. Pediatric Dermatology, 2021.#10.1111/pde.14825
- PMID: 40007199