PubMed · 13223793
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K H GUSTAVSON. 1955-01-08. The function of hydroxyproline in collanges.. https://doi.org/10.1038/175070a0
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Elastofibroma is a well known pseudotumorous process that characteristically occurs in the scapular region in the presence of trauma or injury. Additionally, numerous other sites of origin have been reported in the literature, but to date none have presented in the oral cavity. A 56-year-old female presented with a painless small mass in the floor of the mouth. A longstanding history of trauma to the region was noted. Histopathologic examination revealed the mass to be comprised of a haphazard array of collagen and elastic fibers in a myxomatous background. The elastic nature of the fibers was confirmed by an elastic stain. The diagnosis of elastofibroma was rendered based upon the microscopic findings. This represents the first reported case of elastofibroma of the oral cavity.
The volar pad of the fingertip provides a very stable yet sensitive surface that gives the hand the ability to pinch and grasp. The focus of this study was to advance understanding of the anatomical features of the digital pulp space. The unusual features of the fingertip pulp space include prominent collagen fiber cords and a branching continuous fine vasculature. Prominent collagen fiber cords radiating out from beneath the epidermal basement membrane are like the cords of a parachute, which directly attach to the periosteum of the distal phalanx. Those collagen fiber cords are responsible for the firm attachment of the fingertip to the distal phalanx. There is a fine patent vasculature within the pulp space. Also contained in the capsule are numerous lobules of fat, which contribute to some elasticity of the fingertip. Principles of treatment for injuries or infections of the digital pulp should attempt to preserve this anatomical construct so that the firmness and vascular supply of the fingertip are maintained and not disrupted.
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