PMC6906341_01
Lobulated mass located on the right ala nasi, of approximately 2 cm x 1 cm in
size, covered by adherent and thinned skin.
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Examination of the nose revealed a firm and lobulated mass located in the lateral part of the right ala nasi, of approximately 2 cm x 1 cm in size, covered by an adherent and thinned skin, extending into the nasal vestibule (Figure 1).
Endonasal view of a nonobstructive mass covered by a normal vestibular
skin.
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Anterior rhinoscopy found a whitish nonobstructive mass, not bleeding on touch, covered by a normal vestibular skin (Figure 2).
Intraoperative view: complete tumor dissection removing adherent skin (blue
arrow) via intranasal vestibular incision.
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The tumor was carefully dissected without damaging the capsule, but due to its adherence to the ala nasi skin, it was necessary to remove the tumor along with the covering skin (Figure 3).
Histopathologic photomicrograph showing epithelial and myoepithlial cells in
myxoid stromal component (H&E; x200). Blue arrow indicates fibrous
capsule; red arrow, mesenchymatous component; yellow arrow, epithelial and
myoepithelial component.
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On histologic examination, the tumor was composed of a mixture of calcified ductal and tubular formations and spindle myoepithelial cells into chondromyxoid stroma (Figure 4).
Immunohistochemistry photomicrograph revealing myoepithelial cells with
positive cytokeratin 7 expression (red arrow) (H&E; x400).
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On immunohistochemistry, epithelial membrane antigen (EMA), cytokeratin 7 (CK7), and cytokeratin 19 (CK 19) phenotype expression were positive (Figure 5).