Atlas of the external diseases of the eye : including a brief treatise on the pathology and treatment / by O. Haab ; edited by G. E. de Schweinitz.

  • Haab, O. (Otto), 1850-1931.
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: Atlas of the external diseases of the eye : including a brief treatise on the pathology and treatment / by O. Haab ; edited by G. E. de Schweinitz. 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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    A dermoid cyst may be difficult to distinguish from a cystoid dilatation of the ethmoid cells, the frontal sinus, or the nasal cavity, an example of which is shown in Fig. D. The differential diagnosis is based on the presence of a thin plate of bone between the cyst and the globe, corresponding to the nasal wall of the orbit. % Fig. D. An orbital cyst appearing shortly after birth should always suggest encephalocele or meningocele, which consists of a hernia-like protrusion of the dura mater into the orbit. If the sac contains brain-tissue, it is called enceph- alocele ; if only cerebrospinal fluid, meningocele. The lesion usually develops along the line of a bone-suture. The most frequent seat in the orbit is the suture between