Ophthalmology: Tooth Discovered Growing in Upper Orbit of 16-Year-Old Indian Teenager

Doctors in India have discovered a rare ectopic tooth in a 16-year-old boy, located in the upper portion of his eye socket, beneath the eyebrow. Such a location for a tooth had never previously been documented in medical literature. Ophthalmologists from the Aravind Eye Hospital in Madurai, Tamil Nadu, reported the unusual case, which was detailed in the journal Ophthalmology.

The teenager sought medical attention due to a painless swelling in his upper eyelid that had persisted for about a month. There was no history of trauma prior to the appearance of the mass. Upon examination, specialists found two whitish, hard protrusions on the inner aspect of the left upper eyelid, near the nose.

Initially, doctors suspected the growth might be a teratoma—a rare tumor capable of containing various tissue types, including bone and dental structures. However, a computed tomography (CT) scan revealed a structure resembling a fully formed tooth with both a crown and a root. It originated from the roof of the left orbit, extended forward, and protruded externally in two fragments.

According to the authors, ectopic teeth—teeth located outside the normal dental arch—have been described in various unusual anatomical sites, including the nasal cavity, maxillary sinus, and the floor of the orbit. However, a tooth situated in the roof of the orbit represents the first known case of its kind.

"This was a first not only for us, but globally," said study co-author Meghana Tanwar.

The adolescent underwent surgical excision of the mass. Histopathological examination confirmed mature dental tissue with no features of a teratoma, validating the diagnosis of an ectopic tooth. No other aberrantly located teeth were detected on imaging.

The precise etiology of the intraorbital tooth remains unknown. Potential contributing factors for such developmental anomalies include aberrant tissue differentiation, trauma, infection, and genetic predisposition.

Teeth located completely outside the dental arch occur far less frequently than standard malocclusions. The authors highlight that this case is particularly extraordinary due to the complete displacement of the dental structure beyond the jawline and its direct placement within the upper orbit.

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