Maxillary Sinusitis
Axial CT scan of maxillary sinusitis. Note air-fluid level in left maxillary sinus. (Courtesy of Dr. A. Waltzman)
Choanal Atresia
Axial CT scan of choanal atresia (arrow indicated bony obstructive plate). (Courtesy of Dr. Papsin, HSC)
Carcinoma
Nasopharyngeal Carcinoma
Axial CT scan of expansive tumour arising in the nasopharynx and causing bilateral nasal obstruction. (Courtesy of Dr. Irish, UHN)
Adenotonsillar Hypertrophy
Lateral plain film. Note significant tonsillar (large arrow) and adenoid (small arrow) hypertrophy leading to significant narrowing of the nasal and oral airways. (Courtesy of Dr. Papsin, HSC)
Acoustic Neuroma
Coronal MRI of Left Acoustic Neuroma (Courtesy Dr. Nedzelski)
Abscess
Retropharyngeal Abscess
The left image is of an axial CT scan of left retropharyngeal abscess.
The right image is a lateral plain film of retropharyngeal abscess demonstrating a significant amount of pervertebral soft tissue swelling and an anteriorly displaced trachea.
(Courtesy of Dr. Papsin, HSC)
Ventriculomegaly
(Courtesy of Dr. Seaward and Dr. Ryan, Mt Sinai Hospital)
Monochorionic Twins
Monochorionic, diamniotic twins T sign
(Courtesy of Dr. Seaward and Dr. Ryan, Mt Sinai Hospital)
Dichorionic Twins
Dichorionic, diamniotic twins lamdba sign
(Courtesy of Dr. Seaward and Dr. Ryan, Mt Sinai Hospital)
Placenta Previa
Placenta (P) covers the os. Crosses (+) approximate the cervical length and the bladder (B) is seen on the right.
(Courtesy of Dr. Seaward and Dr. Ryan, Mt Sinai Hospital)
