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Adenocarcinoma NOS arising from accessory lacrimal glands: A case report and a review of the literature. | LitMetric

AI Article Synopsis

  • Primary malignant epithelial tumors from accessory lacrimal glands (ALGs) are very rare, with limited cases documented in medical literature, mostly appearing as increasing masses on the eyelids.
  • The case described involves a 78-year-old man who, after treatment for a conjunctival squamous cell carcinoma, developed a multinodular iris mass revealing an adenocarcinoma from ALGs during subsequent examinations.
  • The findings highlight the importance of considering ALG malignancies in the diagnosis of ocular tumors due to their potentially aggressive nature, despite their rarity.

Article Abstract

Primary malignant epithelial tumours arising from accessory lacrimal glands (ALGs) are extremely rare, with only few cases reported in literature. They generally appear as gradually increasing masses of the upper or the lower eyelid. Only one case of primary adenocarcinoma or adenocarcinoma not otherwise specified (ACNOS) from ALGs has been reported in literature. Herein, we describe a case of ACNOS arising from ALGs with an atypical clinical presentation and review prior cases of ALGs epithelial malignancies reported in the literature. A 78-year-old man referred to our Ocular Oncology Unit for adjuvant therapy after the excision of a conjunctival tumour of the left eye with a histological diagnosis of squamous cell carcinoma. He underwent topical chemotherapy with MMC and during follow up he presented a multinodular iris mass in his left eye. The MRI of the orbit showed an ocular mass infiltrating orbital soft tissues of the inferior palpebral region with an involvement of the corresponding zygomatic cutis. We performed orbital exenteration and histological studies revealed an epithelial neoplasm with a solido-glandular growth pattern with lumens containing an eosinophilic material positive for PAS and PAS-D. The immunohistochemical findings confirmed the diagnosis of adenocarcinoma NOS from ALGs. Although ALGs epithelial malignancies are extremely uncommon, they should be considered in the differential diagnosis of ocular tumours. A vigilant approach towards these entities is required, since they can be clinically insidious and locally aggressive.

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Source
http://dx.doi.org/10.1177/1120672121999993DOI Listing

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