Diagnosis in a ten year old boy with recurrent epistaxis and a unilateral nasal mass is
Nasopharyngeal fibroma/Juvenile nasopharyngeal angiofibroma is a major cause for recurrent epistaxis in adolescent males. It is testosterone dependent. Benign tumour but locally invasive Ref - PL DHINGRA diseases of ear nose and throat, 6th edition
Antrochoanal polyp
Hemangioma
Angiofibroma
Rhinolith
Nose and paranasal sinuses