Year: 2012

1 min read 4

Case of the week: Antrolith and Sinusitis

This weeks case has a few things going on in one of the maxillary sinuses.  There are three different findings in the left maxillary sinus: an antrolith, sinusitis, and a maxillary sinus septum. An antrolith is a calcification within the maxillary sinuses. Sinusitis is thickening of the soft tissue of…
2 min read 1

How was that missed? (Mandibular Fracture)

This how was that missed post is showing a case of a mandibular fracture missed on a 2D image but easily seen on a CT scan. Initial interpretation: Obvious radiolucent line extending from mandibular left premolar region to the inferior border of the mandible.  There is a discontinuity of the…
1 min read 4

Case of the week: Enamel Hypoplasia

This week I have a case of enamel hypoplasia on the maxillary central incisors.  I have no information on the history of this case and any possible causes. If you have some ideas, please feel free to share in the comments. Note the wavy radiolucent lines in the middle portion…
2 min read 2

Attenuation: Photoelectric Effect

This is the last post on attenuation methods. Photoelectric effect There are three main steps in photoelectric effect. 1. A high energy incoming x ray photon knocks out an orbital electron (diagrams show K shell electron being knocked out). The energy of the x ray photon must be equal to…