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Abstract
Purpose
To report a case of medial canthal tendon fibroma, a rarely observed tumor at the eye or ocular adnexa.
Case summary
A 47-year-old female visited our clinic with a two-year history of a hard mass in the medial canthal region. On examination, a 7 × 5 mm2 sized, hard and unmovable subcutaneous mass was palpated. The mass was slowly enlarging and the patient had no symptoms including tearing or pain. To confirm the diagnosis, a total excision of the mass was performed under local anesthesia. The tumor was a well-demarcated, 7 × 5 × 2 mm3 sized, white oval mass. The histopathologic examination of the specimen revealed dense collagen bundles with scattered fibroblasts. Based on these findings, the lesion was diagnosed as a fibroma. Although rare, fibromas should be included in the differential diagnosis of medial canthal tumors.
References
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Figure 1.
The subcutaneous mass (black arrow) is visible on the medial canthal area. It was rock-hard and unmovable.
Figure 2.
Axial (A) and coronal (B) orbital CT show a 7 × 5 mm2 sized, ill demarcated, focally enhancing preseptal lesion near the right medial canthus (white arrows).
Figure 3.
The photographs show(A) well demarcated mass at the medial canthal area. (B) The floor of mass was firm-ly attached to periosteum.
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