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Abstract Background Carotid body tumors are uncommon neuroendocrine growths near the carotid bifurcation. While some advocate preoperative embolization to minimize bleeding, others avoid it due to complications. This study shares the experience of a single center in managing patients with carotid body tumors without practicing preoperative embolization. Methods This was a cross-sectional study of patients with carotid body tumors managed between 2020 and 2024. Data were collected from the hospital’s registry. When necessary, routine blood tests, neck ultrasonography, and computed tomography scans were conducted. The tumors were categorized according to Shamblin’s classification. The average duration of follow-up was 20 months. Results The study involved 25 patients, 22 (88%) females and 3 (12%) males. Their ages ranged from 27 to 85 years old. Twenty (80%) cases presented with neck swelling, and six (24%) had a positive medical history. Tumors were mainly on the right side (52%), with 20 (80%) showing ill-defined neck masses. Tumor sizes ranged from 1.5 to 7 cm, with Shamblin type II tumors being discovered in the majority of cases (72%). Types of tumors were significantly associated with the tumor size (p-value

Abstract Backgrounds Although calcifications have been observed in various renal masses, osseous metaplasia has very rarely been reported. Here, we present a case of concomitant clear cell renal cell carcinoma with osseous metaplasia and papillary thyroid microcarcinoma. Case presentation A 52-year-old male was being investigated for having post-prandial gaseous abdominal distention. Computed tomography of the abdomen showed a heterogeneous mass lesion measuring 27 × 24 mm at the upper/mid pole of the right kidney. It also revealed two small (10 and 11 mm) benign bone islands in the body of the D4 and L4 vertebrae. The patient underwent a metastatic workup by computed tomography, which revealed a 93 × 35 mm mass in the left thyroid lobe with coarse calcification. A partial nephrectomy was planned for the renal mass, but the site of the mass deemed this impossible. Six months after the operation, the patient underwent total thyroidectomy. Histopathology of both tissue samples revealed concomitant clear cell renal cell carcinoma with heterotopic bone formation and papillary thyroid microcarcinoma. Conclusion Although rare, osseous metaplasia in renal cell carcinoma can occur and may indicate an early-stage carcinoma with a favorable prognosis.