Archives of Craniofacial Surgery (대한두개안면성형외과학회지)

Korean Cleft Palate-Craniofacial Association (대한두개안면성형외과학회)
권호 표지
DOI QR코드

DOI QR Code

Meningothelial hamartoma of the scalp

  • Kim, Taeki (Department of Plastic and Reconstructive Surgery, Dongsan Medical Center, Keimyung University School of Medicine) ;
  • Kim, Junhyung (Department of Plastic and Reconstructive Surgery, Dongsan Medical Center, Keimyung University School of Medicine) ;
  • Choi, Jaehoon (Department of Plastic and Reconstructive Surgery, Dongsan Medical Center, Keimyung University School of Medicine) ;
  • Oh, Sangho (Department of Plastic and Reconstructive Surgery, Dongsan Medical Center, Keimyung University School of Medicine) ;
  • Kwon, Sunyoung (Department of Pathology, Dongsan Medical Center, Keimyung University School of Medicine) ;
  • Jeong, Woonhyeok (Department of Plastic and Reconstructive Surgery, Dongsan Medical Center, Keimyung University School of Medicine)
  • Received : 2019.11.27
  • Accepted : 2020.04.22
  • Published : 2020.06.20
Download PDF
⟨ Previous Next ⟩

Abstract

Meningothelial hamartoma is a benign tumor composed of ectopic meningothelial elements in the dermis and subcutaneous tissue. It mainly occurs in the scalp; however, the incidence is extremely low. The origin of meningothelial hamartoma has not been elucidated; nevertheless, it has been theorized that it derives from ectopic meningothelial rests displaced during embryologic development. It can be diagnosed histologically as proliferation of connective tissue elements and cells arranged in solid nests, resembling vascular tumors. On immunohistochemistry, it stains positively for epithelial membrane antigen and vimentin. At least 17 cases have been reported, verifying the rarity of the lesion. We present the case of a 16-year-old male patient with a soft scalp mass which was thought to be a lipoma, but turned out to be a meningothelial hamartoma on histology.

Keywords

References

  1. Curran-Melendez SM, Dasher DA, Groben P, Stahr B, Burkhart CN, Morrell DS. Case report: meningothelial hamartoma of the scalp in a 9-year-old child. Pediatr Dermatol 2011;28:677-80. https://doi.org/10.1111/j.1525-1470.2011.01382.x
  2. Prodinger CM, Koller J, Laimer M. Scalp tumors. J Dtsch Dermatol Ges 2018;16:730-53.
  3. Suster S, Rosai J. Hamartoma of the scalp with ectopic meningothelial elements: a distinctive benign soft tissue lesion that may simulate angiosarcoma. Am J Surg Pathol 1990;14:1-11. https://doi.org/10.1097/00000478-199001000-00001
  4. Kim KS, Yang HS. Unusual locations of lipoma: differential diagnosis of head and neck mass. Aust Fam Physician 2014;43:867-70.
  5. Crittenden SC, Sonnier GB. Meningothelial hamartoma associated with nevus sebaceus. Pediatr Dermatol 2014;31:208-11. https://doi.org/10.1111/pde.12269
  6. Di Tommaso L, Fortunato C, Eusebi V. Meningothelial hamartoma located in the forehead. Virchows Arch 2003;442:509-10. https://doi.org/10.1007/s00428-003-0788-0
  7. Gottschalk J, Jautzke G, Sprung C, Schreiner C, Riebel T. Meningothelial hamartoma of the scalp: a case report with immunohistochemical studies. Zentralbl Pathol 1992;138:355-61.
  8. David LR, White WL, Jain AK, Argenta LC. Meningothelial hamartoma of the scalp: two case reports and literature review. Eur J Plast Surg 1996;19:156-9. https://doi.org/10.1007/BF00185764
  9. Sibley DA, Cooper PH. Rudimentary meningocele: a variant of "primary cutaneous meningioma". J Cutan Pathol 1989;16:72-80. https://doi.org/10.1111/j.1600-0560.1989.tb00014.x
  10. Marrogi AJ, Swanson PE, Kyriakos M, Wick MR. Rudimentary meningocele of the skin: clinicopathologic features and differential diagnosis. J Cutan Pathol 1991;18:178-88. https://doi.org/10.1111/j.1600-0560.1991.tb00150.x
  11. Khallouf R, Fetissof F, Machet MC, Stephanov E, Lechrist J, Lorette G. Sequestrated meningocele of the scalp: diagnostic value of hair anomalies. Pediatr Dermatol 1994;11:315-8. https://doi.org/10.1111/j.1525-1470.1994.tb00095.x
  12. Drolet BA, Clowry L Jr, McTigue MK, Esterly NB. The hair collar sign: marker for cranial dysraphism. Pediatrics 1995;96(2 Pt 1):309-13.
  13. El Shabrawi-Caelen L, White WL, Soyer HP, Kim BS, Frieden IJ, McCalmont TH. Rudimentary meningocele: remnant of a neural tube defect? Arch Dermatol 2001;137:45-50.