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Start free with EleplanFirst branchial cleft anomaly
ORPHA:141013Morphological anomaly
Also called First branchial cleft cyst · First branchial cleft fistula
What it is
A rare otorhinolaryngological malformation characterized by recurrent infections, swelling, pain, discharge and abscess formation in the defect area. The anomaly results from incomplete fusion of the ventral part of the first and second branchial arch, presenting as either a fistula, sinus or cyst occurring anywhere between the external auditory canal and the mandibular angle, including parotid gland.
Key facts
- Classified as
- Morphological anomaly
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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