Malignant mucosal melanoma of the paranasal sinuses: Two case presentations

Figure 1 Coronal computed tomography of the head revealing a large destructive invasive mass involving primarily the left maxillary sinus and left ethmoidal air cells with intracranial and intraorbital extension.

Figure 2 Transverse computed tomography revealing a large destructive invasive mass involving primarily the left maxillary sinus and left ethmoidal air cells with intracranial and intraorbital extension.

Figure 3 Coronal computed tomography scan demonstrated a large enhancing soft tissue mass centered in the right ostiomeatal complex extending into the right maxillary sinus, right ethmoid air cells and right nasal cavity.

Figure 4 Status post right enucleation, right maxillectomy and hemipalatectomy, with removal of the nasal septum, excision of the right superior, middle and inferior turbinates and right ethmoidectomy.

Figure 5 Transverse computed tomography of the chest demonstrated bilateral lung masses with calcifications and at least two discrete nodules suspicious for metastatic disease.

Figure 6 S100 and homatropine methylbromide (HMB45) staining positive for melanoma.