Mukozele des Ductus nasolacrimalis
![](https://pacs.de/sites/default/files/pictures/thumbs/data.pacs.de/1/0/8/8/7/0/31493e8ae205711b47f82a83884866_big_gallery_thumb.jpg)
Nasolacrimal
duct mucocele • Nasolacrimal duct mucocele - Ganzer Fall bei Radiopaedia
![Hier werden Begriffe / Krankheitsbilder genannt, die ähnlich sind oder klingen, aber nicht das Gleiche sind.](/sites/all/modules/pacs/tools/imgs/Dont_mix_40.png)
Nasolacrimal duct mucocele represents cystic dilatation of the nasolacrimal apparatus secondary to proximal +/- distal obstruction of the nasolacrimal duct.
Clinical presentation
The presentation is common early in infancy, typically 4 days to 10 weeks. Infants present with small round bluish medial canthus mass identified at birth or shortly after +/- distal intra-nasal cystic lesion causing nasal obstruction. Symptoms may include:
- tearing or crusting at the medial canthus
- preseptal cellulitis
Pathology
Tears and mucus accumulate in the nasolacrimal duct with the imperforate Hasner membrane (distal duct obstruction) .
Radiographic features
The following triad of imaging findings :
- medial canthus mass that represents an enlarged lacrimal sac in contiguity with enlarged nasolacrimal duct
- enlarged osseous nasolacrimal canal secondary to an enlarged soft tissue nasolacrimal duct
- intranasal cystic mass which represents the inferior extension of the mucocele
Differential diagnosis
- medial canthus cyst: acquired dacryocystocele, orbital dermoid and epidermoid cysts
- intranasal cyst: nasal glioma, hemangioma and cephalocele
See also
Siehe auch:
![Click für weniger anzeigen](/sites/all/modules/pacs/tools/imgs/collapse_up.png)
![](/sites/all/modules/pacs/tools/imgs/Iris_color_40.png)