All Subjects Medicine Surgery Pathology Anatomy Pharmacology Social & Preventive Medicine Microbiology Gynaecology & Obstetrics Dental Physiology Biochemistry Pediatrics
Showing 188245 questions
Sort:
158231 Dental

Subgingival calculus

Acannot occur without supragingival calculus
Bcontains less hydroxyapatite than supragingival calculus
Cis uncommon in children
Dderives its minerals from same source as supragingival calculus
Dental
View Explanation β†’
158236 Orthopaedics

A 12 year old girl complains of pain persisting in his leg for several weeks with a low grade fever. A radiograph reveals a mass in the diaphyseal region of the left femur with overlying cortical erosion and soft tissue extension. A biopsy of the lesion shows numerous small round cells, rich in PAS positive diastase sensitive granules. The most likely histological diagnosis is –

AOsteogenic sarcoma
BOsteoblastoma
CEwing's sarcoma
DChondroblastoma
Orthopaedics
View Explanation β†’