Bilateral kidney pseudotumor due to sarcoidosis: a radiological study case.

Objective: To report one case of bilateral kidney pseudotumor due to sarcoidosis in a 75 year-old man with prostatic carcinoma and hypertrophic pachymeningitis.

Methods: Renal Doppler, body CT, CT-guided renal biopsy, blood analysis including angiotensin converting enzyme (ACE), blood levels and test-treatment (corticosteroid response) were performed.

Results: The radiological studies performed showed bilateral kidney masses and pulmonary calcified hilar adenopathies.

Osteoid osteoma: CT-guided radiofrequency ablation.

Osteoid osteoma is a benign bone tumour; its main symptom is pain, which is sometimes resistant to analgesic or anti-inflammatory medication. The surgical treatment consists of en bloc excision or curettage of the lesion. Several alternative methods have been proposed, among which CT guided-percutaneous radiofrequency ablation.