Successful removal of two osteomata of the orbit : one originating in the frontal, the other in the ethmoidal cells with a history of osteomata of the neighboring pneumatic cavities of the orbit / by Joseph A. Andrews.

  • Andrews, Joseph A., 1855-1926.
Date:
1887
Catalogue details

Licence: Public Domain Mark

Credit: Successful removal of two osteomata of the orbit : one originating in the frontal, the other in the ethmoidal cells with a history of osteomata of the neighboring pneumatic cavities of the orbit / by Joseph A. Andrews. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    inferior spongy bone—not belonging to the ethmoid. The spaces left between these spongy bones and the lateral masses are called the superior and middle meatus of the nose. The superior meatus, being farther back than the middle one, leads into the sphe- noidal sinus, and also into the posterior ethmoidal cells; the middle meatus leading into the anterior ethmoidal cells (distinct from the posterior) and also to the frontal sinus, along a funnel-shaped canal (the infundibulum ) which passes through the foremost of the ethmoidal cells. The ethmoid has, therefore, an im- ^ portant relation to the nasal fossas. It is likewise in intimate relation to the car- nial cavity, as its horizontal plate forms a part of the bone of the skull. The ethmoidal cells sometimes send large prolongations into the • frontal bone. One of the maxillary cells of Haller, which lie in the frontal pro- cess of the superior maxilla and communicate with the ethmoidal cells, may have a very pronounced development, in which case the antrum of Highmore has been found to be divided into two etages, the upper one communicating with the ethmoidal cells (Zuckerkandl). The lateral ethmoidal cells are not infrequently so greatly developed that they appear as prominences at the inner^wall of the orbit. Dehiscences occur in the os planum, orbital wall of the frontal sinus, and the antrum of Highmore. In brachycephalje the ethmoidal cells are likely to be greatly developed (Berger and Tyrmann). Fig. 3.—Side View of Fig. 4. a, Portion in nasal fossa ; orbital portion ; c, anterior por- tion ; d, posterior portion.