A 55-year-old man was referred to our department for incidental left hydronephrosis diagnosed on ultrasonography. A kidney, ureter, and bladder radiograph showed four calcifications in the left urinary tract: one in the middle ureter (U2) and three in the lower ureter (U3) (Picture 1). A noncontrast-enhanced computed tomography (NCCT) scan revealed that the calcification in U2 was a bone island...

An enostosis or bone island is a benign bony lesion that is almost diagnosed based on clinical and radiologic defining characteristics. One of the known diagnostic procedures in the evaluation of enostosis is bone scintigraphy. Generally, we don’t expect to see increased uptake by enostosis in the bone scan. Herein we present a 52-year-old lady who was suffering from chronic low back pain that ...

Osteopoikilosis presents as round or ovoid sclerotic lesions with an appearance like enostosis on pathology. Synovial osteochondromatosis occurs due to cartilaginous metaplasia with synovial villous proliferation with calcified nodules in proximity to joints. A case of osteopoikilosis associated with synovial osteochondromatosis is described. Intraosseus and juxta osseus sclerotic bone lesions ...