RESUMEN
Metastasis accounts for the most common tumor of the central nervous system (CNS) in adults. Renal cell carcinoma (RCC) is one of the common carcinoma showing brain metastasis, with a predilection for clear cell variant. Chromophobe RCC (ChRCC) in contrast to clear cell RCC shows far less common distant metastasis. When they metastasize, commonly involve the liver, lungs, and lymph nodes. ChRCC metastasizing to the brain is extremely rare. Isolated brain metastasis from RCCs is also uncommon. We report an unusual case of a 54-year-old woman with ChRCC with isolated metastasis to the brain, 2 years after radical nephrectomy for renal mass.
RESUMEN
Adrenal oncocytic tumors are rarely encountered. Most of the oncocytic tumors are benign and rarely malignant. Here we report a case of a 10-year-old male child presented with abdominal mass whose Contrast-Enhanced Computed Tomography (CECT) shows well-circumscribed tumor. Right adrenalectomy was carried out. Histopathologically, it was diagnosed as adrenal cortical oncocytic neoplasm of uncertain malignant potential (AONUMP). This case highlights that although adrenal oncoytic tumors are rare, we should consider this as a differential diagnosis while evaluating the patient for adrenal masses. The case is presented in view of its rarity, and distinguishing gross and microscopy appearance, the diagnosis of which was further confirmed with immunohistochemistry markers.