Ophthalmoplegia in a Her2+ and β-hCG+ Patient With Leptomeningeal Carcinomatosis Secondary to Gastric Adenocarcinoma
Leptomeningeal carcinomatosis (LMC) is an uncommon and devastating late complication of metastatic malignancy that carries a poor prognosis, typically faring worse when secondary to solid tumors. Diagnosis of LMC can be challenging, especially if the underlying cancer is undiagnosed, as presenting symptoms can be nonspecific or involve focal deficits such as cranial nerve palsies.
Relevance: In this report, we present a case of LMC secondary to metastatic gastric adenocarcinoma in a patient whose only manifestation was cranial nerve palsies, and whose cancer was also found to be Her2 and β-hCG positive, two markers not widely recognized in gastric cancer.