👉 Periangioma is a medical condition in which the lining of the nose or throat, also known as the nasal septum, grows too fast. This can cause swelling and discomfort, often leading to difficulty breathing. Periangiomas are characterized by a thick and sticky layer on top of the nasal septum, making it difficult for the air to pass through. They are usually caused by an infection or inflammation in the nose or throat. Treatment may include medications to thin out the lining or surgery