A swelling or hernia involving the lacrimal sac due to fluid accumulation or tissue protrusion.
From Greek 'dakryon' (tear) + 'kystis' (sac) + 'kele' (hernia or swelling). This compound term combines structural and pathological descriptions.
Combining '-cyst' and '-cele' shows how medical terminology stacks descriptors—it's like saying 'swelling-of-the-tear-sac-swelling' which sounds redundant but tells doctors exactly what's happening!
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