Primary adenocarcinoma of the orbit initially diagnosed as idiopathic sclerosing orbital inflammation.

PURPOSE: Differentiating idiopathic sclerosing orbital inflammation from orbital inflammation secondary to neoplasia may be challenging, as both processes can present similarly. Neoplasms in the orbit may induce inflammation with accompanying fibrosis. Limited sections of histopathological specimens may demonstrate nonspecific inflammation and lead to an inaccurate diagnosis. OBSERVATIONS: The authors present a case of infiltrating adenocarcinoma of the orbit with mucinous features which was misdiagnosed as idiopathic sclerosing orbital inflammation due to three separate benign biopsy specimens. CONCLUSIONS AND IMPORTANCE: The ophthalmologist must remain suspicious of malignancy in cases of suspected idiopathic orbital inflammation with an atypical clinical course, regardless of apparently benign biopsy results.

A Rare Cutaneous Presentation of Metastatic Orbital Adenocarcinoma / 대한피부과학회지

Primary ductal adenocarcinoma of the lacrimal gland (PDALG) is a rare tumor accounting for less than 2% of all tumors arising within the orbit. It is classified as a high-grade malignant epithelial tumor due to its variable biologic behavior and aggressive clinical course. Due to its rare incidence, the clinicopathologic profile is poorly identified and generally dependent on the few available reports and case series. Metastatic lesion of PDALG presenting as a skin lesion is very rare with only one previously reported case. We report here a case of metastatic PDALG that presented with cutaneous features. This case illustrates that such a rare malignant tumor may present to dermatologists, requiring prompt diagnosis and management with a multidisciplinary approach.