Learning objectives
Present some clinical cases of our teaching file,
showing CT and MRI images of the most frequent orbital and lacrimal gland lesions.
Background
Clinically the tumors of the lacrimal gland appear as palpable masses of the outer orbital angle of the orbit,
with proptosis,
eyelid protrusion and most noticeably ocular deviation.
Most of the lesions are of an inflammatory type (50%),
being the most representative the acute and chronic dacrioadenitis,
inflammatory pseudotumor and sarcoidosis.
Lymphoproliferative disorders constitute less than 25%.
Among the differentials should be taken into account those of epithelial strain such as pleomorphic adenoma,
cystic adenoid tumor and mucoepidermoid; in addition epidermoid cysts,
dermoids and metastasis....
Findings and procedure details
The tomography is useful for the evaluation of the bony structures and presence of calcifications.
The extent of the lesion and its relation with the soft tissues is performed with magnetic resonance.
The presence of bone changes,
unilateral compromise,
contrast enhancement,
clinical presentation are the basis for adequate diagnosis.
we review imaging cases of our teaching file of patients with orbital and lacrimal gland lesions.
Two–phase,
dynamic enhanced CT technique to help differentiate lymphoma
from inflammatory disease.
CT and MRI features of bilateral lacrimal enlargement...
Conclusion
Tear gland lesions are a rare finding in routine radiological studies,
so the radiologist must know the radiological anatomy and the main signs and symptoms of lacrimal pathology to guide the diagnosis as well as to select the most imaging technique appropriate.
References
Mafee M,
Haik B.
Lacrimal gland and fossa lesions: role of computed tomography.
Radiol Clin North Am 1987;25(4):767
Sanderson JC,
Stasior OG,
Stasior GO.
Lacrimal gland secretory ducts.
Presented at the fall meeting of American Society of Ophthalmic Plastic and Reconstructive Surgery,
Atlanta,
October 28,
1995
Mafee M,
Haik B.
Lacrimal gland and fossa lesions: role of computedtomography.
Radiol Clin North Am 1987;25(4):767
Lloyd GA.
The radiological investigation of proptosis.
Br J Radiol.
1970;43 (505): 1-18
Obata,
H.,
Yamagami,
S.,
Saito,
S.,
Sakai,
O.,
&...