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primary lesion

   Also found in: Dictionary/thesaurus, Legal, Encyclopedia, Wikipedia 0.03 sec.
lesion /le·sion/ (le´zhun) any pathological or traumatic discontinuity of tissue or loss of function of a part.
angiocentric immunoproliferative lesion  a multisystem disease consisting of invasion and destruction of body tissues and structures by atypical lymphocytoid and plasmacytoid cells resembling a lymphoma, often progresssing to lymphoma.
Armanni-Ebstein lesion  vacuolization of the renal tubular epithelium in diabetes.
benign lymphoepithelial lesion  enlargement of the salivary glands with infiltration of the parenchyma by polyclonal B cells and T cells, atrophy of acini, and formation of lymphoepithelial islands.
Blumenthal lesion  a proliferative vascular lesion in the smaller arteries in diabetes.
central lesion  any lesion of the central nervous system.
Ghon's primary lesion  Ghon focus.
Janeway lesion  a small erythematous or hemorrhagic lesion, usually on the palms or soles, in bacterial endocarditis.
primary lesion  the original lesion manifesting a disease, as a chancre.

primary lesion
Etymology: L, primus + laesio, hurting
a sore or wound that develops at the point of inoculation of the disease, usually referring to a syphilis chancre. Also called initial lesion.


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When the primary lesion is in the central tegmental tract, olivary degeneration is ipsilateral, as occurred in our patient.
The primary lesions are black dots, papules, nodules and burrowing excoriations.
In our case primary lesion and mandibular metastasis were detected simultaneously, and mandibular metastasis probably grew up from the periapical region, resorbed the alveolar bone and then infiltrated to the gingival soft tissue around right premolar teeth.
 
 
 
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