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9 results found

Kartagener syndrome

Kartagener syndrome is a subset of primary ciliary dyskinesia, an autosomal recessive condition characterised by an abnormal ciliary structure or function, leading to impaired mucociliary clearance.  Epidemiology The prevalence of primary ciliary dyskinesia is approximately 1 in 12,000-60,000 ...

Keratocystic odontic tumour

Keratocystic odontogenic tumours (KCOT or KOT), previously known as odontogenic keratocysts, are benign cystic neoplasms involving the mandible or maxilla and are believed to arise from dental lamina. They are locally aggressive and tend to recur after excision.  On imaging, they typically appe...

Keratosis obturans

Keratosis obturans (KO) is a rare external auditory canal disease characterised by abnormal accumulation and consequently occlusion and expansion of the bony portion of the EAC by a plug of desquamated keratin. It can be confused by EAC cholesteatoma but they are completely different entities re...

Keros classification of olfactory fossa

The Keros classification is a method of classifying the depth of the olfactory fossa. The ethmoid labyrinth is covered by the fovea ethmoidalis of the frontal bone and separates the ethmoidal cells from the anterior cranial fossa. The very thin, horizontal cribriform plate (lamina cribrosa) of...

Kiesselbach's plexus

Kiesselbach's plexus (Kiesselbach's area or Little's area) is a vascular region of the anteroinferior nasal septum that comprises four arterial anastomoses: anterior ethmoidal artery a branch of the ophthalmic artery sphenopalatine artery a branch of the maxillary artery greater palatine ar...

Kimura disease

Kimura disease is a rare benign inflammatory disease that characteristically manifests as enlargement of cervical lymph nodes and salivary glands. Epidemiology Kimura disease typically affects males (80%) between 20 and 40 years of age (80% of cases) 1-2, and is most frequently seen in Asia. S...

Kissing carotids

The term kissing carotids refers to tortuous and elongated vessels which touch in the midline. They can be be found in:  retropharynx 2 intra-sphenoid 1 within the pituitary fossa within sphenoid sinuses within sphenoid bones The significance of kissing carotids is two-fold: may mimic int...

Koerner's septum

Koerner's septum is a thin bridge of bone which divides the petrous and squamous portion of the mastoid air cells at the level of the mastoid antrum. It is commonly eroded by middle ear cholesteatomas.

Küttner tumour

Küttner tumour (KT) refers to a chronic sclerosing sialadenitis of the salivary glands. Despite the term tumour, it is a non neoplastic condition.  It is classically described in relation the submandibular gland but less commonly can also affect other salivary glands 9 and occassionally as well ...

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