PMC3414006_01
Exophytic growth seen covered with a white pseudomembrane.
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fig1
It is well defined, firm, nontender and covered with white pseudomembrane (Figure 1).
Blackish discoloration of the entire mandibular gingiva.
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fig2
Mandibular marginal and attached gingiva was black in color especially on the labial/buccal aspect (Figure 2).
Orthopantomogram showing horizontal bone loss in relation to mandibular incisors and rarefaction in the surrounding bone.
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fig3
There was generalized rarefaction in the adjoining bone altering the normal trabecular pattern (Figure 3).
Blow mouth axial CT scan showing enhanced growth.
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fig4
Computed tomogram (CT) showed 2.3 x 4.4 cm sized enhancing lesion extending from right mandibular lateral incisor upto the left second premolar lingually (Figure 4).
Erosion of the anterior cortex of the left body of mandible seen on the axial CT scan bone window.
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fig5
There was erosion of the anterior cortex of the left body of mandible to the symphyseal region (Figure 5).
PMC3414006_02
A black exophytic growth was seen on the right side of the hard palate with satellite lesions.
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fig6
On intraoral examination, a black exophytic growth was seen on the right side of the hard palate (Figure 6).
Buccal extension of the lesion involving the gingiva between the maxillary right first and second molars.
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fig7
The lesion extended onto the buccal aspect involving the gingiva between the maxillary right first and second molars (Figure 7).
Orthopantomogram showing destruction of interdental bone between maxillary right first and second molars, disruption of the corticated border of the floor of right maxillary sinus.
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fig8
The periodontal ligament space in relation to all the right maxillary molars and second premolar was widened (Figure 8).
Axial CT scan showing ill-defined enhancing soft tissue mass on right side of hard palate extending posteriorly upto the soft palate.
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fig9
There was no evidence of erosion or sclerosis of bone due to the soft tissue mass (Figures 9 and 10).
Coronal CT scan at the level of the maxillary right first molar showing bone destruction around the tooth.
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fig10
There was no evidence of erosion or sclerosis of bone due to the soft tissue mass (Figures 9 and 10).
Histopathology slide showing spindle-shaped melanocytes.
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fig11
Few mitotic figures were also seen (Figure 11).