Gingival metastasis from a testicular choriocarcinoma: an unusual case report and review of the literature / Metástasis gingival desde un coriocarcinoma testicular: un inusual reporte de caso y revisión de la literatura

Metastasic tumours to the oral cavity are extremely rare lesions that represent 1% of all oral and maxillofacial malignancies. Most reported cases involve the jaw bones than the soft tissues. Metastasis to the oral soft tissues most prevalently affects the gingiva and alveolar mucosa. Gingival metastasis may have an unremarkable clinical appearance and they can be difficult to distinguish from more common hyperplasic or reactive lesions that appear to be benign entities, such as peripheral giant-cell granuloma, pyogenic granuloma and peripheral ossifying fibroma. We present an unusual case of a testicular choriocarcinoma metastasized to the maxillary gingiva mimicking a reactive lesion. In addition, we also present a literature review of previous reported cases and a brief discussion about the etiopathogeny of testicular germ cell tumors, and how these malignant cells can reach the gingival tissues.

Los tumores metastásicos a la cavidad bucal son lesiones extremadamente raras que representan el 1% de todas las neoplasias malignas bucales y maxilofaciales. La mayoría de los casos reportados afectan más a los huesos maxilares que los tejidos blandos. Las metástasis a los tejidos blandos bucales involucran más prevalentemente a la encía y la mucosa alveolar. Las metástasis gingivales pueden tener un aspecto clínico no característico y suelen ser difíciles de distinguir de otras lesiones hiperplásicas o reactivas que parecen ser entidades benignas, tales como el granuloma periférico de células gigantes, el granuloma piogénico y el fibroma osificante periférico. Presentamos un inusual reporte de caso de un coriocarcinoma testicular metastásico a la encía maxilar simulando una lesión reactiva. Además, también se presenta una revisión de la literatura de los casos previamente publicados y una breve discusión acerca de la etiopatogenia de los tumores testiculares de células germinales, y cómo estas células malignas pueden llegar a los tejidos gingivales.

Metastatic lung malignancy to mandibular gingiva.

Metastatic tumors of oral cavity are uncommon and may occur in oral soft tissues or jaw bones. Because of their rarity, metastasis to oral cavity are challenging to diagnose and difficult to treat. They often have vague symptoms that mimic dental infections. These lesions generally show poorly differentiated histopathologic picture and have poor prognosis. We reported a case of a 40-year-old male patient of metastatic lesion to the oral cavity and brain with primary tumor, diagnosed as an undifferentiated epithelial malignancy of lung.

[Metastasis of clear cell renal carcinoma to the maxillary gingiva in a 75-year old man: a case report]

About 1% of all oral cancers are metastases of primary tumors elsewhere in the body and could be located in the soft tissue as well as in the jaw bones. Among all the primary tumors that arise below the level of the clavicle, renal cell carcinoma [RCC] is the third most common neoplasm according to metastasis in the head and neck region. Majority of the reported cases involve the jaw bones rather than the soft tissues. Here one case of metastatic RCC to the maxillary gingival is reported. The Patient was a 75 year-old man who chiefly complained about swelling in his anterior region of the maxillary gingival. Excisional Biopsy was performed. Metastatic clear cell Renal cell carcinoma [CCRCC] was diagnosed by microscopic examination by demonstrating islands of cells separated from each other by thin fibrovascular septa, with stroma containing numerous sinusoid like vessels and immunohistochemistry [IHC] Staining [S-100, vimentin, EMA,CEA, CD 10, CK7, TTF-1 and PSA]. CT scan confirmed tumor in the right kidney. Nephrectomy and chemotherapy were performed but patient died 9 months after treatment as a result of metastases to brain and lung. CCRCC arise from renal tubular epithelium. Microscopically differential diagnosis for jaw tumors with clear cells includes a broad spectrum of tumors such as odontogenic tumors, salivary gland tumors and metastatic tumors. Generally, an immunohistochemistry panel consisting of S-100, vimentin, EMA. CEA, CD10.CK7, TTF-1 and PSA is useful to diagnose CCRCC from other clear cell tumors. Although IHC aids us in diagnosis, other paraclinical procedures like imaging should be done, to confirm the diagnosis

A Case of Hepatocellular Carcinoma with Metastasis to Gingival Mucosa / 대한간학회지

Hepatocellular carcinoma is one of the most common causes of death in Koreans. Most cases of hepatocellular carcinoma are beyond the stage of curative resection at the time of diagnosis due to extrahepatic metastasis as well as wide distribution of tumor in the liver. The lung is the most common site of extrahepatic metastasis but metastasis to gingiva is very rare in hepatocellular carcinoma. We report a case hepatecellular carcinoma with gingival methststasis in a 59 year old male patient.

Metastasis to maxillary gingiva from carcinoma of breast. A case report.

A rare case of metastatic infiltrating duct carcinoma involving gingiva in relation to maxillary left canine-premolar of a 40 year old female is presented. The unilateral gingival enlargement in canine-premolar region was quite unusual. Pertinent history and histological examination revealed that the tumor was a metastatic carcinoma, the primary lesion of which was in the breast. The differential diagnosis of gingival enlargements is discussed in this paper. The resemblance of this mass to an inflammatory hyperplastic condition reflects the need for a detailed case history and examination.

Carcinoma of the urinary bladder metastatic to the oral cavity.

Oral Metastasis from a carcinoma of the urinary Bladder is extremely uncommon. Two cases of transitional cell carcinoma of the Bladder, presenting eighteen and ten months after initial diagnosis, one with soft tissue metastasis in the upper alveolus and the other with bony metastasis to the mandible are discussed.

Metástase de neuroblastoma em boca / Metastic neuroblastoma in the mouth

Os autores relatam o caso de uma criança portadora de neuroblastoma metastático em boca. Comentam os seus aspectos semiológicos principais, diagnóstico diferencial, bem como os vários fatores que podem interferir diretamente no plano de tratamento e prognóstico. Além disso, chamam a atenção para o fato de que este tipo de neoplasia pode, em alguns casos, apresentar características clínicas e radiográficas semelhantes à patologias de origem odontogênica