Items tagged “nasal cavity”

17 results found
Case

Concha bullosa - bilateral

  Diagnosis certain
Frank Gaillard
Published 29 Dec 2008
83% complete
CT
Case

Concha bullosa: left

  Diagnosis certain
Frank Gaillard
Published 19 Nov 2009
53% complete
CT
Article

Olfactory neuroblastoma

Olfactory neuroblastomas, also known as esthesioneuroblastomas (the spelling aesthesioneuroblastoma is considered archaic), are tumors arising from the basal layer of the olfactory epithelium in the superior recess of the nasal cavity. They usually present as a soft tissue mass in the superior o...
Case

Concha bullosa (diagram)

  Diagnosis not applicable
Frank Gaillard
Published 30 Apr 2010
19% complete
Diagram
Case

Concha bullosa

  Diagnosis certain
Frank Gaillard
Published 21 May 2010
62% complete
CT
Case

Concha bullosa - obstructed

  Diagnosis almost certain
Frank Gaillard
Published 21 May 2010
65% complete
CT
Case

Nasal dermoid cyst

  Diagnosis almost certain
Roberto Schubert
Published 03 Aug 2012
56% complete
MRI
Case

Infected concha bullosa

  Diagnosis almost certain
Mohammad Taghi Niknejad
Published 30 Nov 2012
65% complete
Annotated image CT
Article

Pyriform aperture stenosis

Pyriform aperture stenosis refers to narrowing of the pyriform aperture and results from early fusion and hypertrophy of the medial nasal processes. Epidemiology Pyriform aperture stenosis is a rare cause of airway obstruction, and its prevalence is unknown. Pathology Associations alobar an...
Article

Nasolacrimal drainage apparatus

The nasolacrimal (drainage) apparatus consists of: lacrimal canaliculi lacrimal sac nasolacrimal duct Gross anatomy Tears produced by the lacrimal gland, accessory lacrimal glands of Krause, Wolfring and Zeis, and Meibomian glands track medially along the eyelid margins and collect at the l...
Article

Nasolacrimal duct

The nasolacrimal duct (NLD) is the terminal part of the nasolacrimal apparatus. Gross anatomy The nasolacrimal duct is the inferior continuation of the lacrimal sac and is ~17 mm in length in total. The duct runs in the bony nasolacrimal canal. There are two parts to the nasolacrimal duct: in...
Article

Ostiomeatal complex

The ostiomeatal complex (OMC) or ostiomeatal unit (OMU), sometimes less correctly spelled as osteomeatal complex, is a common channel that links the frontal sinus, anterior ethmoid air cells and the maxillary sinus to the middle meatus, allowing airflow and mucociliary drainage.  Gross anatomy ...
Article

Nose

The nose, sometimes referred to as the external nose, is a feature of the face and is composed of soft tissues that extend externally from the skull. It is continuous posteriorly with the nasal cavity. The anterior (piriform) aperture is bounded above by the nasal bones and elsewhere by the two ...
Article

Schneiderian epithelium

Schneiderian epithelium/membrane is the unique lining of the nasal cavity and paranasal sinuses, and is an ectodermally derived ciliated columnar epithelium with goblet cells. It differs from the similarly appearing respiratory epithelium, which is endodermally derived.  History and etymology ...
Case

Antrochoanal polyp

  Diagnosis almost certain
Shervin Sharifkashani
Published 12 Apr 2022
83% complete
CT
Case

Antrochoanal polyp

  Diagnosis almost certain
Shervin Sharifkashani
Published 24 Apr 2022
80% complete
CT
Article

Sinonasal seromucinous hamartoma

Sinonasal seromucinous hamartomas (SSH) are benign sinonasal neoplasms. Epidemiology Sinonasal seromucinous hamartomas are rare, with approximately 25 cases reported since 1974 1. They are more common in middle-aged adults with a mean in the 6th decade and a slight female predilection (1.5:1) ...