Introduction: Postauricular cutaneous mastoid fistula (PCMF) is a very rare complication of chronic suppurative otitis media (CSOM). The fistula is typically challenging to manage due to necrotic skin edges. Case Report: This case report described a 53 years old female with PCMF as a complication of an unsafe type of CSOM and a history of diabetes mellitus who underwent a radical mastoidectomy procedure. After two days of post-operation, the patient was discharged from the hospital without any complication observed. The surgical scar was favourable in the fifth week after surgery. Conclusion: Radical mastoidectomy is an effective procedure to eradicate the disease as well as possible and also for the closure of PCMF.
Key words: Postauricular cutaneous mastoid fistula, unsafe type of CSOM, radical mastoidectomy
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