A clinical case of two types of nasal heterotopia of the external nose in a child

Background. Dermoid cysts (DCs), or dermoids, are benign tumors that result from the immersion of ectodermal germ layer into the underlying tissue during embryogenesis or from a malformation of three germ layers. DCs are often located in areas where sulci and clefts were located during the embryonic period, or in the areas of closing ectodermal depressions or budding cutaneous rudiments. Dermoids are most often found in the face, neck, occiput, mediastinum, sacrum, ovaries, manubrium, and floor of the mouth. DCs may not manifest in any way, characterized by a benign course and slow growth. The main treatment modality is exclusively surgical.
The clinical case. Male patient B., 1 year old, was admitted with complaints (according to his mother) of a mass around the nasal dorsum. He was examined at the place of residence, where ultrasound scan of the soft tissues of the nose and paranasal sinus CT scan were performed. According to the examination data, a mass was detected in the nasal dorsum area, with nasal bones uninvolved. Under endotracheal anesthesia, the patient underwent removal of the nasal dorsum tumor. A year and a half after the surgical treatment, the patient’s parents complained of a nasal dorsum mass present below the postoperative scar. The mass was considered a recurrence of the epidermal cyst of the nasal dorsum. Under ETA, the nasal dorsum and nasal cavity mass was removed. Outcomes. Patient B. has successfully undergone two radical surgical operations for removal of nasal dorsum masses with an interval of one and a half years. There were no complications in the postoperative periods. This clinical case is special in view of the histologically confirmed two types of external nasal heterotopia in the child, the second case not being a recurrence. No recurrence was detected in the child during the follow-up period lasting 2 years.
Keywords: dermoid cyst, epidermal cyst, dermoid, nose, childhood, nasal heterotopia
Conflicts of interest. The authors have no conflicts of interest to declare.
Financing. The research was funded from the authors’ own funds