Caso Clínico: Metástasis Tumoral a Tumor- Un Raro Fenómeno / Clinical Case: Tumor to Tumor Metastasis - A Rare Phenomenon

Introducción: La metástasis tumor a tumor es muy rara con menos de 50 casos descritos en la literatura. Este artículo informa de un caso de metástasis de cáncer de mama en un tumor renal de células claras. Caso clínico: El caso corresponde a una mujer de 61 años de edad con antecedente de cáncer de mama, libre de enfermedad por 23 años. Por control, se solicita Tomografía computarizada (TC) simple y contrastada observándose a nivel de pelvis renal izquierda imagen nodular hipercaptante heterogénea de 2.4 cm, de bordes definidos, no infiltrante a tejidos adyacentes. Evolución: por localización de lesión, la paciente fue sometida a nefrectomía radical izquierda. El examen patológico demostró un carcinoma de mama metastásico de 3 mm, mal definido, dentro de un carcinoma de células renales claras de 2,5x2x2cm. Desenlace: continúa en seguimiento por consulta externa de oncología clínica. Conclusión: Este caso pone de relieve la importancia de los antecedentes previos de neoplasia maligna de un paciente, así como del muestreo adecuado de las neoplasias renales

Introduction: Tumor to tumor metastasis is very rare with less than 50 cases described in the literature. This article reports a case of breast cancer metastasis in a clear cell renal tumor. Clinical case: The case corresponds to a 61-year-old woman with a history of breast cancer, disease free for 23 years. For control, simple and contrasted computed tomography (CT) is requested, observing at the level of the left renal pelvis, a heterogeneous hypercapting nodular image of 2.4 cm, with defined edges, not infiltrating adjacenttissues. Evolution: Due to the location of the lesion, the patient was subjected to left radical nephrectomy. The pathological examination showed a poorly defined 3 mm metastatic breast carcinoma within a clear renal cell carcinoma of 2.5x2x2cm. Outcome: the patient continues to be followed by an outpatient clinic for clinical oncology. Conclusion: This case highlights the importance of a patient's previous history of malignancy, as well as adequate sampling of renal neoplasms

Expression of TRPM7 protein in cholangiocarcinoma and its correlation with prognosis / 重庆医学

Objective To evaluate the expression of transient receptor potential melastatin 7(TRPM7)in cholangiocarcinoma and its correlation with prognosis.Methods The expressions of TRPM7 were detected by SP immunohistochemical in 49 cases of cholangiocarcinoma,7 cases of benign bile duct lesions and 36 cases of adjacent histologically noncancerous bile duct tissues,and to analysis its relationship with the clinical pathological characteristics of cholangiocarcinoma.Results The positive expression rate of TRPM7 in cholangiocarcinoma was 77.6%(38/49),which was higher than that in benign bile duct lesions(0,0/7)and adjacent his-tologically noncancerous bile duct tissues(2.8%,1/36),the difference was statistically significant(P 0.05).Kaplan-Meier analysis showed that increased expression of TRPM7 was associated with shorted overall survival (P <0.05).Cox regression analysis showed that the expression level of TRPM7 was significantly associated with prognosis and an independent risk factor for prognosis(P <0.05 ). Conclusion TRPM7 plays an important role in the tumorigenesis progression,invasion,and metastasis of cholangiocarcinoma,and is an important factor for prognosis in patients with cholangiocarcinoma.