introduction: metastatic lesions of the oral cavity are extremely rare, accounting for approximately 1% of all malignant oral tumors. the most common primary sources of metastatic tumors in the oral region are, from the most to the least common, the breast, lung, kidney, bone, and colon. renal cell carcinoma accounts for nearly 3% of all adult malignancies. it usually metastasizes to the lungs,...

this paper presents four cases of abnormal soft tissue activity in the bone scan of patients with different lesions (lung inflammatory pseudotumor, pulmonary fibrosis, pulmonary metastatic osteosarcoma and metastatic hepatic carcinoma of colon).

endometrial cancer generally carries a good prognosis. endometrial carcinoma more frequently metastasizes to the pelvic and para-aortic nodes. visceral metastases usually occur in the vagina and ovaries. distant metastases involve lungs and occur as a terminal event. this case report describes vulvalar metastasis of endometrial cancer to the clitoris. metastatic tumors of the vulva are rare. mo...

metastases of internal tumors to the oral cavity are unusual and in most cases involve maxilla and mandible. metastases to the gingival soft tissue are extremely rare. reporting a new clinical case of renal cell carcinoma (rcc) metastasis with an unusual site. metastatic involvement of gingival tissue with renal cell carcinoma is an extremely rare clinical event. it is usually associated with i...

A 75-year-old male patient with non-avid radioiodine Hurthle cell carcinoma was evaluated by 99m Tc- octreotide scintigraphy, in order to find possible metastatic lesions. A bony metastatic lesion was detected by this procedure which was confirmed by histopathology.99mTc-octreotide scintigraphy is a precise and cost-effective imaging modality for detection of non-iodine av...

Thyroid gland metastatic tumors are rare in clinical practice. Clear cell RCC is one of common metastatic tumors to thyroid. We here reported a case of incidentally found clear cell renal carcinoma metastasis to the thyroid gland 3 years after nephrectomy, in the thyroidectomy procedure performed for the patient due to the thyroid enlargement caused by multinodular goiter. A 65-year-old Iranian...

the primary carcinoma may secondarily invade bone tissue through direct extensions, blood circulation or lymphatic transportation particulary when it is arising from breast, prostate, kidney, thyroid and lung. metastatics tumors of bone are more common than primary tumor of bone. the most common tumor, which metastasizes into bone, is the breast adenocarcinoma. some metastatic tumors of bone in...

papillary thyroid carcinoma (ptc) is one of the most commonly diagnosed types of differentiated carcinoma of the thyroid. it is stated that lung is the most common site of metastasis followed by bone. the incidence of paranasal sinus (pns) metastasis is fairly uncommon in case of thyroid carcinoma. to the best of our knowledge, no case of metastatic ptc to nasal cavity has been reported. in thi...

metastasis to the oral region is very rare and accounts for less than 1% of oral malignant tumors. breast, lung, kidney, adrenal, gastro intestinal tract and prostates are most common primary tumors from which metastasis to oral region occur frequently. metastasis from thyroid gland is extremely rare to oral region. we present an unusual case of metastatic follicular carcinoma of thyroid in max...