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Updated: Nov 5, 2025

Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting
Published on: May 1, 2015
Management of cervicofacial lymphatic malformations requires a multidisciplinary approach
Michael J Zobel1, Donna Nowicki1, Gabriel Gomez2
1Division of Pediatric Surgery, Department of Surgery, Children's Hospital Los Angeles, 4650 Sunset Blvd., MS#100, Los Angeles, CA, USA 90027.
Background/Purpose:
Cervicofacial lymphatic malformations (CFLM) are rare, potentially life-threatening vascular anomalies, yet reports on multidisciplinary treatment strategies are lacking. We evaluated outcomes for CFLMs following sclerotherapy, surgical resection, and/or medical management.
Methods:
We identified children with a CFLM at a vascular anomalies center from 2004 to 2019.
Exclusion Criteria:
retro-orbital malformations, untreated malformations, patients without follow-up. Primary clinical outcome was contour improvement, with significance defined as LM volume reduction of >50% by cross-sectional imaging.
Results:
Sixty-three children met inclusion criteria: 35 with macrocystic CFLMs, six with microcystic CFLMs, and 22 with mixed-type malformations. Mean post-intervention follow-up was 27.5 months. Fifty-eight patients underwent sclerotherapy (median: two treatments). Doxycycline and/or bleomycin were used in 95% of patients. After sclerotherapy, 97% of macrocystic CFLMs improved significantly compared to 82% of mixed and 67% of microcystic lesions. Sixteen children underwent surgical resection with 75% significantly improving; two additional patients were successfully treated with sclerotherapy after debulking surgery. Six children received sirolimus for microcystic disease, of which 33% significantly improved.
Conclusion:
Sclerotherapy is very effective for macrocystic components of CFLMs, albeit less so for microcystic disease. Microcystic CFLMs frequently require surgical resection. Sirolimus is a helpful therapeutic adjunct, particularly for microcystic lesions, but more study is needed.
Level Of Evidence:
Level II, prognosis study.

