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Carli D, Kalantari S, Manicone R, Coppo P, Francia di Celle P, La Selva R, Santoro F, Ranieri C, Cardaropoli S, Fagioli F, Ferrero GB, Resta N, Mussa A. Kaposiform hemangioendothelioma further broadens the phenotype of PIK3CA-related overgrowth spectrum. Clin Genet 2021; 100:624-627. [PMID: 34402524 DOI: 10.1111/cge.14047] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/25/2021] [Accepted: 08/13/2021] [Indexed: 12/12/2022]
Abstract
Kaposiform hemangioendothelioma (KHE) is a rare locally aggressive mixed vascular tumor, with typical onset in early childhood and characterized by progressive angio- and lymphangiogenesis. Its etiopathogenesis and molecular bases are still unclear. Here, we report the first case of congenital KHE harboring a PIK3CA mosaic pathogenic variant (c.323G > A, p.Arg108His) in a boy with very subtle PIK3CA-related overgrowth spectrum (PROS) features. This finding provides insights into the pathophysiology of KHE, offering targeted therapeutic options by inhibition of the PI3K/Akt/mTOR pathway. We propose the inclusion of this mixed lymphatic and vascular anomaly within the PROS.
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Affiliation(s)
- Diana Carli
- Pediatric Clinical Genetics Unit, Department of Public Health and Pediatric Sciences, Regina Margherita Children's Hospital, Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy.,Pediatric Onco-Hematology, Regina Margherita Children's Hospital, Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy
| | - Silvia Kalantari
- Immunogenetics and Transplant Biology Service, Città della Salute e della Scienza University Hospital, Turin, Italy
| | - Rosaria Manicone
- Pediatric Onco-Hematology, Regina Margherita Children's Hospital, Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy
| | - Paola Coppo
- Pediatric Dermatology, Regina Margherita Children's Hospital, Città della Salute e della Scienza di Torino, Torino, Italy
| | - Paola Francia di Celle
- Molecular Pathology Laboratory, Pathology Division, Città della Salute e della Scienza University Hospital, Torino, Italy
| | - Roberta La Selva
- Pediatric Dermatology, Regina Margherita Children's Hospital, Città della Salute e della Scienza di Torino, Torino, Italy
| | - Federica Santoro
- Department of Medical Sciences, Pathology Unit, Città della Salute e della Scienza Hospital, University of Torino, Torino, Italy
| | - Carlotta Ranieri
- Department of Biomedical Sciences and Human Oncology (DIMO), Medical Genetics, University of Bari "Aldo Moro", Bari, Italy
| | - Simona Cardaropoli
- Pediatric Clinical Genetics Unit, Department of Public Health and Pediatric Sciences, Regina Margherita Children's Hospital, Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy
| | - Franca Fagioli
- Pediatric Onco-Hematology, Regina Margherita Children's Hospital, Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy
| | - Giovanni Battista Ferrero
- Pediatric Clinical Genetics Unit, Department of Public Health and Pediatric Sciences, Regina Margherita Children's Hospital, Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy.,Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
| | - Nicoletta Resta
- Department of Biomedical Sciences and Human Oncology (DIMO), Medical Genetics, University of Bari "Aldo Moro", Bari, Italy
| | - Alessandro Mussa
- Pediatric Clinical Genetics Unit, Department of Public Health and Pediatric Sciences, Regina Margherita Children's Hospital, Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy
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