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Case Reports
. 2022 Feb 1;10(2):e05374.
doi: 10.1002/ccr3.5374. eCollection 2022 Feb.

Sinonasal mucosal melanoma presenting as a maxillary sinus mass: A case report

Kamal Gautam  1 , Sansar Babu Tiwari  2 , Suraj Shrestha  3 , Prabin Gaire  2 , Malati Dulal  4 , Bibek Man Shrestha  3 , Roman Dhital  5 , Usha Manandhar  2 , Arun Kumar Baral  6
Affiliations
Case Reports

Sinonasal mucosal melanoma presenting as a maxillary sinus mass: A case report

Kamal Gautam et al. Clin Case Rep. .

Abstract

Maxillary sinus melanoma is a rare mucosal melanoma difficult to diagnose in the absence of pigmentation. Intranasal masses presenting with the features of occult malignancy and rapid progression should always be investigated in the line of melanoma irrespective of pigmentation. The histopathological and immunohistochemical examination helps to confirm the diagnosis.

Keywords: intranasal melanoma; maxillary sinus; radiotherapy.

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Conflict of interest statement

None.

Figures

FIGURE 1
FIGURE 1
Right nasolabial fold obliteration and mass reaching up to the right nostril
FIGURE 2
FIGURE 2
CT nose and PNS demonstrating soft tissue opacification in the right maxillary sinus, ethmoid and frontal sinus along with the erosion of surrounding bony structures
FIGURE 3
FIGURE 3
(A) Sheets of dispersed tumor cells with a scant amount of cytoplasm and coarse chromatin. (B) Tumor cells show moderate diffuse cytoplasmic HMB‐45 positivity, (C) weak vimentin positivity, and (D) negative CD45 immunostaining
See this image and copyright information in PMC

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