rete ridge


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re·te ridge

downward projection of the epidermis between the dermal papillae.

re·te ridge

(rē'tē rij)
Downward thickening of the epidermis between the dermal papillae; peg is a misnomer because the dermal papillae are cylindric but the epidermal thickening between papillae is not.

rete ridge

(re'te)
One of the downgrowths of epithelium surrounding the connective tissue papillae in the irregular internal surface of the epidermis. Microscopic sections often appear as single downgrowths when in fact the epithelium is in a series of interconnecting ridges at the dermis-epidermis interface.
Synonym: peg, rete

rete

pl. retia [L.] a network or meshwork, especially of blood vessels.

arterial rete, rete arteriosum
an anastomotic network of minute arteries, just before they become capillaries.
articular rete
a network of anastomosing blood vessels in or around a joint.
blood vessel rete
visible networks of vessels; see also rete mirabile (below).
rete carpi dorsale
a network of small vessels over the dorsal aspect of the carpus in the horse.
rete malpighii
the innermost stratum of epidermis.
rete mirabile
a vascular network formed by division of an artery or vein into many smaller vessels that reunite into a single vessel, such as the carotid rete mirabile (epidural rete) at the base of the brain of ruminants.
rete mirabile ophthalmicum
a small arterial network in the orbit of ruminants.
rete pegs
inward projections of the epidermis into the dermis, as seen histologically in vertical sections.
rete ridge
marked undulations of the dermoepidermal junction; not a feature of normal skin in animals except in certain areas such as the footpads and planum nasale of carnivores.
rete testis
the network of channels formed in the mediastinum of the testis by the seminiferous tubules.
rete tubules
a network composed of tubules, e.g. seminiferous tubules.
rete vasculosa
networks of vessels as in the lungs.
rete venosum
an anastomotic network of small veins.
References in periodicals archive ?
The histopathologic picture showed acanthosis, elongation and anastomosing rete ridges and microabscessses in the superficial layers of the epithelium.
sup][14] The histopathological change of DDD is very characteristic, showing dilated follicular, fingerlike projections called rete ridges, with thinning of the suprapapillary plates, resulting in an “antler-like” pattern and increased pigmentation of the basal layer.
Figure 3: 10x view showing lichen nitidus--claw shaped elongation of epidermal rete ridges encircling well defined inflammatory infiltrate--claw clutching the ball appearance.
Figure 4 Photomicrograph showing hyperkeratosis, irregular acanthosis and elongation of rete ridges in epidermis and ectatic dilated vessels with mild perivascular chronic infiltrate in dermis [H and E, X100 (A), X 400 (B)].
Histopathology is diagnostic testing using a distinctive form of acanthosis, characterized by an irregular elongation of thin branching rete ridges, with a concentration of melanin at the tips.
Histopathology is characterized by light microscopy findings of alternating orthokeratosis and parakeratosis, focal or confluent hypergranulosis, follicular plugging, broad rete ridges and sparse superficial dermal lymphocytic perivascular infiltration.
Histopathological examination showed the presence of a central column of hyperkeratosis and parakeratosis, the cornoid lamella and reduced thickness of granular layer along with elongated rete ridges.
In the absence of verrucous(raised) skin lesions and histopathologic evidence of hyperkeratosis, acanthosis, elongation of rete ridges, papillomatosis, the possibility of epidermal nevus was not entertained.