Introduction: Trichilemmal or pilar cysts are common intradermal or subcutaneous cysts that are benign, adnexal skin tumors usually occurring on the scalp. Rarely do these cysts occur in the neck region?
Case history: We report the clinical course and management of a teenage girl who presented with swelling on the left side of the neck for three months duration. She underwent total excision of the cyst. It was diagnosed histopathologically as a trichilemmal cyst.
Conclusion: Trichilemmal cysts are usually found in the hairy region. In this case, the cyst was found below the deep cervical fascia; therefore, it is an unusual presentation and needs to be highlighted.
Karamen E, Durman C, Yagiz C. Giant trichilemmal cyst at the neck region. J Craniofac Surg 2009;20(3):961–962. DOI: 10.1097/SCS.0b013e3181a2d85d
Seidenari S, Pellacani G, Nasti S, et al. Hereditary trichilemmal cyst: a proposal for the assessment of diagnostic clinical criteria. Clin Genet 2021;84(1):65–69. DOI:10.1111/cge.12040
Abreu Velez AM, Brown VM, Howard MS. An inflamed trichilemmal cyst: not so simple? N Am J Med sci 2011;3(9):431–434. DOI: 10.4297/najms.2011.3431
Cavalerio LH, Viana O, Carneiro CM, et al. Proliferating trichilemmal tumour—case report. An Bras Dermatol 2011;86(4 Suppl 1):S190–S192. DOI: 10.1590/s0365-05962011000700049
García-Rojo B, García-Solano J, Sánchez-Sánchez C, et al. On the utility of fine-needle aspiration in the diagnosis of primary scalp lesions. Diagn Cytopathol 2001;24(2):104–111. DOI: 10.1002/10970339(200102)24:2<104::aid-dc1019>3.0.co;2-c
Shet T, Rege J, Naik L. Cytodiagonosis of simple and proliferating trichilemmal cysts. Acta Cytol 2001:45(4):582–588. DOI: 10.1159/000327868
Goyal S, Jain B, Jana S, et al. Malignant proliferating tumour. Indian J Dermatol 2012;57(1):50–52. DOI: 10.4103/0019-5154.92679
Simo R., Jeannon JP, Ofo E. Benign neck disease. In: Watkinson JC, Clarke RW, editors. Scott-Brown's Otorhinolaryngology Head and Neck Surgery. 8th ed. Boca Raton: CRC Press; 2019; p. 611–612.
Cuda JD, Rangwala S, Taube JM. Benign Epithelial Tumors, Hamartomas, and Hyperplasias. In: Kang S, Amagai M, Bruckner AL, Enk AH, Margolis DJ, McMichael AJ, Orringer JS. eds. Fitzpatrick's Dermatology, 9e. McGraw Hill; 2019. Accessed November 21, 2022. https://accessmedicine.mhmedical.com/content.aspx?bookid=2570§ionid=210433401
