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[Myeloidleukemia with external auditory canal granulocytic sarcoma: a case report]
Summary
A rare granulocytic sarcoma, a type of tumor, appeared in the external auditory canal of a patient in remission from acute myeloid leukemia. This case highlights unusual presentations of myeloid leukemia recurrence.
Area of Science:
- Oncology
- Otolaryngology
Background:
- Acute myeloid leukemia (AML) can present with extramedullary disease.
- Granulocytic sarcoma is a rare manifestation of AML, often affecting specific sites.
- External auditory canal involvement is exceptionally uncommon.
Observation:
- A 44-year-old male, previously treated for acute promyelocytic leukemia (APL) and in remission, presented with left ear pain and hearing loss.
- Otoscopic examination revealed a tumoral lesion in the external auditory canal.
- Computed tomography (CT) scan confirmed a mass in the left external acoustic meatus without evidence of bone erosion.
Findings:
- The patient was diagnosed with an isolated external auditory canal granulocytic sarcoma.
- This represents an unusual extramedullary relapse of AML in a patient previously in remission.
- The absence of bone erosion suggests a localized and potentially early-stage presentation of the sarcoma.
Implications:
- This case underscores the importance of considering extramedullary relapse of AML, even in the ear canal, in patients with a history of the disease.
- Early detection and diagnosis of granulocytic sarcoma are crucial for timely management and improved patient outcomes.
- Further research into the mechanisms and risk factors for isolated extramedullary relapse of AML is warranted.
