The Anonymous nose is considered the rarest nose shape. Found in only one of 1793 faces studied, it represents less than 0.05% of the population. This flat, round nose shape is uniquely distinctive.
While many different nose shapes exist (e.g., turned-up, hawk, etc. as described in this article), the Anonymous nose stands out due to its extremely low prevalence.
Several medical conditions related to the nose are also rare:
- Empty nose syndrome: A rare condition often resulting from nasal surgery. (Source)
- Cerebrospinal fluid (CSF) leak: A serious condition that can lead to meningitis. (Source)
- Specific types of nasal cancer: Nasal and sinus cancers are themselves rare. (Source)
- Rare tumors: Conditions like spindle cell lipomas and other specific tumors of the nose are also uncommon. ([Sources](https://pmc.ncbi.nlm.nih.gov/articles/PMC9425572/, https://www.rileychildrens.org/connections/nine-year-old-battles-rare-nose-tumor))
- Specific types of skin cancer: Cutaneous metastases from squamous cell carcinomas at the nasal tip are exceptionally rare. (Source)
It's important to note that "rare" is relative and depends on the context (nose shape vs. medical condition). The Anonymous nose is rare in terms of its shape's prevalence, while other conditions mentioned are rare in terms of their incidence as diseases.
