Adenoid cystic carcinoma (ACC) of the lacrimal glands is an extraconal malignancy usually originating from the orbital lobe of the lacrimal gland.
It often presents with orbital pain and paresthesia, since this type of tumour is frequently associated with perineural spreading.
CT-scan shows an infiltrative mass involving the lacrimal gland, very often associated with bony destruction, showing enhancement after contrast administration.
- T1: homogeneously hypointense
- T2: usually isointense, but sometimes hypointense (basaloid subtype)
- T1 C+ (Gd): moderate enhancement
- inflammatory mass associated with:
- lymphoid hyperplasia of the sinus glands
- non-Hodgkin lymphoma
- other neoplasm: pleomorphic adenoma (benign), squamous cell carcinoma, mucoepidermoid carcinoma
- 1. Qin W, Chong R, Huang X et-al. Adenoid cystic carcinoma of the lacrimal gland: CT and MRI findings. Eur J Ophthalmol. 22 (3): 316-9. doi:10.5301/ejo.5000015 - Pubmed citation
- 2. Williams MD, Al-zubidi N, Debnam JM et-al. Bone invasion by adenoid cystic carcinoma of the lacrimal gland: preoperative imaging assessment and surgical considerations. Ophthal Plast Reconstr Surg. 26 (6): 403-8. doi:10.1097/IOP.0b013e3181df6ab9 - Pubmed citation