primary lesion


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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.

primary lesion

The first lesion of a disease, esp. used in referring to chancre of syphilis.
See also: lesion
References in periodicals archive ?
3,4) The poor prognosis in black patients may be the result of the cumulative effect of multiple negative prognostic factors, the most important of which are thick primary lesions and presentation with advanced disease.
Increased expression of S100A6 at the invading fronts of the primary lesion and liver metastasis in patients with colorectal adenocarcinoma.
The equipment allows doctors to locate the sentinel node by injecting a liquid radioisotope in the area of the primary lesion.
Central Neuropathic Pain is a heterogeneous group of pain conditions initiated or caused by a primary lesion in the central nervous system and occurs often following spinal cord injury.
sup][7] In contrast, if the primary lesion and metastases are radically resected, 5-year OS is 25–70%.
Also noted, however, were a small soft-tissue component to the primary lesion, a mesenteric mass, a lesion in the right hepatic lobe, and mesenteric and periportal lymphadenopathy.
3] Rather than being a primary lesion, malignant melanomas of the bladder are more commonly metastatic lesions, which originate from a distant primary site.
Whatever the nature of the primary lesion, the course of the disease or the treatment(s) administered, it appears that skin metastasis is an equalizing factor for all patient groups in carcinoma of the head and neck; all patients do poorly and succumb rapidly to their disease.
The patient underwent elliptical excisional biopsy of the primary lesion after no palpable lymphadenopathy was noted.
It is considered an independent primary lesion, which is histologically similar to Rb.
Conclusion: Yield of localizing primary lesion in the GI tract by pan-endoscopy was limited.
Blood results, abdominal X-rays and a barium enema study proved unremarkable in determining a primary lesion.

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