CONGENITAL MEMBRANE IN THE NASOPHARYNX.

Congenital salivary gland anlage tumor of the nasopharynx.

Nasal and upper respiratory tract obstruction in the neonatal period can result from a variety of conditions, and may be present with variable symptoms. Salivary gland anlage tumor, also referred as congenital pleomorphic adenoma, is a very rare benign congenital tumor of the nasopharynx, which may produce nasal obstruction and other associated, nonspecific symptoms. We report a case of congeni...

Congenital Salivary Gland Anlage Tumor of the Nasopharynx

Objective. Nasal and upper respiratory tract obstruction in the neonatal period can result from a variety of conditions, and may present with variable symptoms. In the absence of dysmorphic features or other abnormalities, causes of nasal obstruction may be difficult to differentiate on initial examination. We report an unexpected and potentially life-threatening condition arising during the wo...

Irradiation of the nasopharynx.

Congenital fibrovascular pupillary membrane

Congenital fibrovascular pupillary membrane (1-4) is an unilateral ocular change of the anterior segment (Figure 1). This abnormality was first reported by Cibis et al. in 1986. In some cases, progressive miosis, posterior embryotoxon and abnormality of the anterior chamber angle have been documented. Pupillary membrane might not be adhered to crystalline, or it can also be associated with ante...

The congenital pinhole: a persistent pupillary membrane.

During embryonic development the lens receives nourishment from the posterior and anterior tunica vasculosa lentis. During the fourth month of gestation, macrophages play a role in the regression of the tunica vasculosa lentis, revealing the pupillary aperture posteriorly. The persistent pupillary membrane (PPM) represents a congenital remnant of the anterior tunica vasculosa lentis. As in this...