| serous otitis | Inflammation of middle ear mucosa, often accompanied by accumulation of fluid, secondary to eustachian tube obstruction. Synonym: secretory otitis media. (05 Mar 2000) |
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| serous pericardium | <anatomy> A double membranous sac which envelops and protects the heart. The layer in contact with the heart is referred to as the visceral layer, the outer layer in contact with surrounding organs is the parietal pericardium. In between the two layers is the pericardial space. (27 Sep 1997) |
| serous pleurisy | Pleurisy accompanied by serous exudation. Synonym: serous pleurisy, wet pleurisy. (05 Mar 2000) |
| serous retinitis | Oedema of the retina; an inflammation of the inner layers of the retina. Synonym: simple retinitis. (05 Mar 2000) |
| serous synovitis | Synovitis with a large effusion of nonpurulent fluid. (05 Mar 2000) |
| neoplasms, cystic, mucinous, and serous | Neoplasms containing cyst-like formations or producing mucin or serum. (12 Dec 1998) |