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Moreover, Wnt proteins are key mediators of wound regeneration and participate in various related processes, from the development of the dermis to formation of skin appendages [20].
"Using the episodic regeneration of skin appendages as a clear readout, we have the opportunity to understand and modulate the behavior or adult stem cells and organ regeneration at a level heretofore unknown," the authors said.
Dermoid type cysts contain skin appendages whereas teratoids contain epithelium lined mesodermal or endodermal elements such as bone, teeth, muscle, mucous membrane (2).
The first section deals with skin signs associated with nine specific organ systems, and the next section covers skin appendages including hair, nail, and the pigmentary system.
incidence of surgical conditions seen at Mangaung correctional centre from December 2003 to April 2009 Diagnosis Incidence Upper gastro-intestinal conditions 28.4% Anal and peri-anal diseases 26.3% Diseases of the skin appendages 13% Benign soft-tissue tumours 9.8% AIDS-related lymphadenopathy 6.2% Foreign body ingestion 4% Miscellaneous 12.3%
Pathologic examination revealed that the skin tag was covered by unremarkable squamous epithelium, and normal complements of skin appendages surrounded a fibrous core.
The earlobe biopsy showed epidermal hyperkeratosis and parakeratosis, liquefaction degeneration of the basal cells, and follicular keratotic plugging, and the blood vessels and skin appendages surrounded by lymphocytes in the dermis [Figure 1]c.