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Case No. 743
2026-01-01~2026-01-31
출제자 : 박상익
Hit : 565
| Period | 2026-01-01~2026-01-31 |
|---|---|
| Diagnosis | Melanoma |
| Clinical information | A 57-year-old male patient presented with nasal obstruction. What was the diagnosis? |
| Discussion | Sinonasal melanoma is a rare and aggressive mucosal melanoma that most commonly arises in the nasal cavity or paranasal sinuses and often presents with epistaxis or nasal obstruction. Imaging findings are highly variable due to differing amounts of melanin and frequent intratumoral hemorrhage, with MRI showing heterogeneous signal intensity, including possible T1 hyperintensity from melanin or hemorrhage. Reference Saleh M, Javadi S, Elsherif S, et al. Multimodality imaging and genetics of primary mucosal melanomas and response to treatment. Radiographics. 2021;41:1954–1972. |
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