In this study, an active prospective investigation allowed LSO detection during the first six months after RIT. This finding demonstrates the importance of making this association clear to patients and health professionals, with a view to early diagnosis, appropriate treatment, and preventing LSO-related complications.

Subjective worsening of xerostomia, xerophthalmia, nasal symptoms, and changes in the nasal mucosa in group 1 was observed.

Ectopic cilia are rare in humans. We report a 6-year-old girl with typical characteristics of ectopic cilia as described in the rare cases reported in the literature, in association with cutaneous lesions that appeared to be hypochromic nevi. This framework could be a different clinical presentation of ectopic cilia.