PMC10436987_01
PMC10436987_02
PMC10436987_03
CT scan at 7 months old: cystic appearance of the right eustachian tube; lack of middle ear aeration on the right side.
10.1177_2632010X231195231-fig1.jpg
PMC10436987_03_10.1177_2632010X231195231-fig1.jpg
fig1-2632010X231195231
MRI at 1 year old: Right eustachian tube occupied by a cystic tumor.
10.1177_2632010X231195231-fig2.jpg
PMC10436987_03_10.1177_2632010X231195231-fig2.jpg
fig2-2632010X231195231
Subsequent MRI showed the same cystic-like appearance of her right eustachian tube, with a non homogenous content and complete lack of middle ear ventilation (Figure 2).
PMC10436987_04
Intraoperative views, showing progressive removal of the tumor of a tumor. We can identify: the malleus (M), stapes head (S), and tumor (T). Later in removal process, hair follicles (H) are clearly visible on the surface of the tumor.
10.1177_2632010X231195231-fig3.jpg
PMC10436987_04_10.1177_2632010X231195231-fig3.jpg
fig3-2632010X231195231
Its peripheral dissection and traction allowed eliciting of a hairy, ferm, whitish tumor that could be excised with some difficulty, apparently in a single piece, due to its profound attachments inside the medial part of the Eustachian tube (Figure 3).
Intraoperative nasopharyngeal endoscopy at the end of the surgical tumor removal.
10.1177_2632010X231195231-fig4.jpg
PMC10436987_04_10.1177_2632010X231195231-fig4.jpg
fig4-2632010X231195231
Nasopharyneal endoscopy showed a normal sized residual right eustachian tube orifice (Figure 4).
Histologic sections of the Eustachian tumor appearance: (a) Fibroadipose tissue covered by squamous epithelium with skin appendages, H&E stain, 100X, (b) A mixture of bone trabeculae, fibrous tissue, sero-mucous glandular acini, ductal structure layered by ciliated columnar respiratory epithelium, H&E stain, 100X, and (c) The tumor surface was covered by skin with skin appendages and hair shafts, Van Gieson stain, 100X.
10.1177_2632010X231195231-fig5.jpg
PMC10436987_04_10.1177_2632010X231195231-fig5.jpg
fig5-2632010X231195231