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 ?
Histologic findings for primary lesion Histologic finding Number % Ductal carcinoma in situ 18 15 With microinvasion 1 0.
In contrast to previously reported cases of breast cancer metastatic to the stomach, in which the primary lesions were previously known and often clinically obvious, we describe a case in which minimal breast cancer was found in retrospect to be the primary tumor during the workup of a patient with presumed metastatic gastric cancer.
We present a case of parameningeal embryonal rhabdomyosarcoma with the primary lesion arising in the middle and inner ear, with associated diffuse skeletal metastases and metastatic calcifications.
New lesions appeared on the edge of a healed scar for each patient, regardless of the location of the primary lesion (Table), and were diagnosed at Rennes University Hospital (positive direct examination or culture) in 2005.
The most common sites for the primary lesion are the long bones, pelvis, and ribs.
Treatment of the primary lesion involves either Mohs or wide (1-3 cm) excision.
A few case reports describe metastasis of cellular dermatofibromas despite excision of the primary lesion (4-6).
When methotrexate or another ablative substance is used to remove the endometrioma lining, the primary lesion frequently is missed, and the disease is likely to reaccumulate, said Dr.
Given the recent diagnosis of laryngeal cancer and the patient's age, a renal biopsy was performed to identify (1) whether it was a metastatic lesion or primary lesion, and (2) if it was a primary lesion, the type and grade of malignancy versus benign neoplasm.
Most commonly, metastatic melanoma cells resemble the cells in the primary lesion.
The clinical data on these patients were evaluated with regard to the site of the primary lesion, the pathologic diagnosis, treatment modality, and subsequent clinical course.

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