Think of it this way: Kid has Vit.D deficiency/ Rickets. He needs Vit D to mineralize bone, which means make osteoid into mature bone. No Vitamin D means excess unmineralized bone aka osteoid.
This pt has osteomalacia / rickets (since he's a kiddo). Caused by defective mineralization of osteoid (osteomalacia) or cartilaginous growth plates (rickets, only in children).
Most commonly d/t Vitamin D deficiency.
Children with rickets have pathologic bow legs (genu varum), bead-like costochondral junctions (rachitic rosary), craniotabes (soft skull).
Dec. Vitamin D (normal function is to reabsorb Ca2+ and PO4)
Dec. serum Ca2+
Dec. ย serum PO4
Inc. PTH
i couldnt even guess this was rickets homie
sketchy path: rickets are "decreased mineralization of cartilage bone @ epiphyseal growth plate"
which I thought was choice A. " absence of cartilage @ epiphyseal growth plate". But I think that's referring to achondroplasia.
pppth
submitted by โragacha(17)
PATHOMA page 196 DUE A OSTEOID DEPOSITION โฆ RICKETS is due low vit D .. RACHITIC ROSARY due to osteoid deposition at the COSTOCHONDRIALJUCTION.