It is rare for ophthalmological symptoms to be the presenting symptoms of a breast primary carcinoma
A multicentric primary neoplasm is diagnosed when a dysplastic mucosa is present next to it; (ii) a potential second primary carcinoma
which represents a metastasis or a local relapse should be excluded.
of the lung: clinicopathological study of 35 cases.
Immunohistochemical staining has been widely used to distinguish metastatic RCC from the primary carcinoma
of genital tract cell.
A larger lesion may mimic chronic infections such as mycetoma, or distant metastases from another primary carcinoma
(breast or renal).
originating in the Littre glands.
The diagnostic criteria of primary TGDC are; (a) histopathological identification of TGDC itself; (b) the presence of thyroid follicles in the cyst wall; (c) the existence of normal thyroid tissue adjacent to the tumor and (d) the absence of primary carcinoma
in the thyroid7.
5,7) The diagnostic criteria for primary carcinoma
of Bartholin's glands are; i) the tumor is located in Bartholin's gland area, ii) transition between normal epithelium to neoplastic epithelium is identified, and iii) no tumor is detected in other sites.
2] Although SCLC is most common primary carcinoma
in ALS, breast carcinoma, lymphoma , myeloma, renal cell carcinoma  also are known for such presentation.
The phenomenon of true tumour to tumour metastasis has to complaint basic criteria proposed by Campbell: the metastasis focus must at least be partially enclosed by a rim of histological distinct host tissue and the existence of metastasizing primary carcinoma
must be proven and compatible with the metastasis (1).
Background: Primary carcinoma
of the gallbladder is the most common biliary tract tumor.
The patient had only recently been diagnosed with his primary carcinoma