American journal of ophthalmology case reports
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Am J Ophthalmol Case Rep · Mar 2019
Case ReportsMixed cranial neuropathies due to occult perineural invasion of basal cell carcinoma.
To report a diagnostically challenging case of cranial neuropathy due to perineural invasion by a basal cell carcinoma presenting 7.5 years after treatment of the primary tumor with Mohs micrographic surgery. ⋯ The diagnosis of perineural invasion by BCC can pose several challenges, including subtle to absent imaging findings of clinically involved nerves and a lengthy latent period following primary tumor treatment. This case represents, to our knowledge, the longest reported interval between primary treatment and biopsy-proven recurrence with perineural invasion by BCC.