Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2025 Sep 9.
doi: 10.1097/IOP.0000000000003026. Online ahead of print.

A Rare Orbital Trichilemmal Cyst: A Case Report

Agustina L Mena  1 , Margarita Isa  1 , Rodolfo L Vigo  2
Affiliations

A Rare Orbital Trichilemmal Cyst: A Case Report

Agustina L Mena et al. Ophthalmic Plast Reconstr Surg. .

Abstract

This article presents the rare occurrence of a trichilemmal cyst in the orbit of a 69-year-old female patient, who presented with a headache of acute onset and relative unilateral proptosis of the left eye. CT scan showed a cystic, well-demarcated, round hypodense lesion, with spotted calcification. Surgery was performed for the extraction and analysis of the lesion, which showed typical histological findings of a trichilemmal tumor. This case represents the only one reported in the literature, to the best of our knowledge. An atypical localization for this kind of tumor that usually arises from zones with an abundance of hair follicles.

PubMed Disclaimer

Conflict of interest statement

The authors have no financial or conflicts of interest to disclose.

References

    1. Ramaswamy AS, Manjunatha HK, Sunilkumar B, et al. Morphological spectrum of pilar cysts. N Am J Med Sci 2013;5:124–128.
    1. Meena M, Mittal R, Saha D. Trichilemmal cyst of the eyelid: masquerading as recurrent chalazion. Case Rep Ophthalmol Med 2012;2012:261414.
    1. Kamyab K, Kianfar N, Dasdar S, et al. Cutaneous cysts: a clinicopathologic analysis of 2,438 cases. Int J Dermatol 2020;59:457–462.
    1. Kawaguchi M, Kato H, Matsuo M. CT and MRI features of scalp lesions. Radiol Med 2019;124:1049–1061.
    1. Kolodney MS, Coman GC, Smolkin MB, et al. Hereditary trichilemmal cysts are caused by two hits to the same copy of the phospholipase C delta 1 gene (PLCD1). Sci Rep 2020;10:6035.

LinkOut - more resources