Journal List > J Korean Ophthalmol Soc > v.56(11) > 1010149

Kim, Lee, and Chi: A Case of Steatocystoma Simplex of the Orbit

Abstract

Purpose

Steatocystoma is a cyst that originates embryologically from hair follicles and usually occurs on the face, chest, back and axillae as multiple lesions and rarely occurs as a solitary lesion. We experienced a case of steatocystoma simplex that de-veloped in the orbit and present our case with a brief review of the literature.

Case summary

A 44-year-old male presented with a history of palpable mass in the right inferomedial periorbital area that had been slowly growing for a few months. Physical examination revealed a non-tender, soft and round mass. Magnetic resonance imaging of the orbit showed 2.0 x 2.0 x 2.0 cm-sized mass in the right inferomedial orbit. We performed excisional biopsy of the orbital mass using transconjunctival approach. The pathological diagnosis was steatocystoma. There was no local recurrence during the postoperative follow-up.

Conclusions

We experienced a rare case of steatocystoma simplex that developed in the orbit. Base on our results, steatocys-toma simplex should be considered when diagnosing an orbital mass.

References

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Figure 1.
2.0 × 2.0 × 2.0 cm-sized, well defined mass at inferomedial portion of the right orbit on magnetic resonance (MR) images. The mass shows high signal intensity on T1-weighted coronal image (A) and T2-weighted axial image (B). Gadolinium-en-hanced T1-weighted fat-suppressed coronal image demonstrates non-enhancing mass.
jkos-56-1794f1.tif
Figure 2.
Gross findings of the specimen. About 2.3× 2.0×1.8 cm-sized, round-shaped, well-demarcated mass is seen in the right inferomedial orbit.
jkos-56-1794f2.tif
Figure 3.
Histological examination. (A) Histological examination reveals a folded, empty cyst lined by squamous epithelium and flattened sebaceous glands (black arrow) within the cyst wall (HE stain, ×40). (B) A thick, eosinophilic cuticle (red arrow) covers the surface of the epithelium (HE stain, ×100). HE = Hematoxylin-Eosin.
jkos-56-1794f3.tif
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