title: Calcified orbital cyst simulating a malignant lacrimal gland tumor in an adult.
abstract: A 56-year-old woman with left periocular pain was discovered on CT to have a partially calcified, circumscribed cystic lesion in the lacrimal gland fossa, suggestive of a malignant lacrimal gland tumor. Adjacent bone fossa formation without erosion was noted. Histopathologic examination of the excised mass disclosed a cyst with chronic granulomatous inflammation and calcification of the cyst wall. The combination of chronic pain, cystic changes, and calcification in a lacrimal gland fossa mass in an adult should suggest a malignant neoplasm, but a long-standing orbital cyst with calcification of its rim can produce the same features.
authors.affiliation: Oncology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA.
authors.forename: Ekaterini C
authors.initials: EC
authors.lastname: Karatza
authors.forename: Carol L
authors.initials: CL
authors.lastname: Shields
authors.forename: Jerry A
authors.initials: JA
authors.lastname: Shields
authors.forename: Ralph C
authors.initials: RC
authors.lastname: Eagle
mesh_terms: D002114:Calcinosis / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003560:Cysts / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D005134:Eye Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D007766:Lacrimal Apparatus Diseases / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D009916:Orbital Diseases / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed