<prompt> Cowden syndrome is commonly associated withRenal cell carcinomaThymic CarcinoidCerebellar haemangioblastomaHamartoma  <response>: D Hamartoma Cowden syndrome also known as Cowdens disease, and Multiple hamartoma syndrome is a rare autosomal dominant inherited disorder characterized by multiple tumor-like growths called hamartomas and an increased risk of certain forms of cancer. Stauffer syndrome - paraneoplastic, non-metastatic liver disease is a sign of Renal cell carcinoma. Thymic carcinomas are, for the most part, of epithelial origin, although a few other unusual cell types can be found. All these lesions are very uncommon, and several are rare. They include some with low malignant potential eg, well-differentiated squamous cell carcinoma, basaloid carcinoma, mucoepidermoid carcinoma and those with features of a more aggressive malignancy E.g., Sarcomatoid carcinoma, clear cell carcinoma, neuroendocrine carcinoma, lymphoepitheliomalike tumors, anaplastic undifferentiated tumors. 