A case of osteitis deformans / by John R. Lunn.

  • Lunn, John R.
Date:
[1884?]
Catalogue details

Licence: Public Domain Mark

Credit: A case of osteitis deformans / by John R. Lunn. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    normal cancellous bone is replaced by one of a more dense and uniformly porous nature. Skull.—The disease chiefly affects the frontal, occipital, and parietal bones; the maximum thickness being in the frontal and occipital regions, where the inner table measures 13 mm. and the external 9 mm., the diploe being faintly indicated. The grooves for blood-vessels on the inner surface are deepened. The base of the skull is nearly free from change. The tem- poral bones show some increased porosity in places but no thickening; the sphenoid increased porosity and slight thicken- ing. The ethmoid, superior and inferior maxillfe, malar, nasal., and turbinal bones, and the vomer are free from disease. A11 the sutures with the exception of the squamo-parietal are obliterated. Spinal column.—The whole length of the spine shows characteristic changes, but they are most marked in its lower half. Bony processes from the margins of the bodies arch over the intervertebral discs and are frequently blended together. There is also extensive ossification of the fibrous tissue con- nected with the spinous, articular, and transverse processes. By these means the sixth, seventh, eighth, and ninth dorsal vertebree are united; the tenth and eleventh are ankylosed, ossification of the interspinous ligament forming a broad plate of bone, and the arches being completely fused; the body of the tenth is much wasted causing angular curvature. The twelfth dorsal and first lumbar are free ; the second, third, and fourth ankylosed together, and the fifth ankylosed to the sacrum and innominate bones. Ribs.—The ribs are only slightly aff'ected, chiefly at their extremities; at their sternal ends many show ossification extending from them into the perichondrium. Costal cartilages.—These show numerous patches of bone formed by ossification of the perichondrium. /S^erwMW.—Slightly rougher than normal, junction of manu- brium and gladiolus still cartilaginous, ensiform process ossified. Right scapula.—Head, coracoid,and acromion processes, free edge of spine, and axillary border, slightly affected. Left scapula.—Ssime parts diseased but much more so, espe- cially the spine and acromion; the venter is also somewhat affected.