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Related to tylosis: tylosis palmaris et plantaris

ty·lo·sis 1

n. pl. ty·lo·ses (-sēz)

[New Latin tylōsis, from Greek tulōsis, a making callous, from tuloun, to make callous, from tulos, callus; see teuə- in Indo-European roots.]

ty·lo·sis 2

n. pl. ty·lo·ses (-sēz)
See tylose.


(Botany) botany a bladder-like outgrowth from certain cells in woody tissue that extends into and blocks adjacent conducting xylem cells
[C19: from Greek tulōsis, from tulos knob or tulē callus + -osis]
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References in periodicals archive ?
Howel-evans: carcinoma oesophagus with Tylosis a study in two Failies.
3,4) are tobacco use and alcohol consumption; particularly Other risk factors for oesophageal SCC in the Western world include low socioeconomic status, poor oral hygiene, achalasia, history of thoracic radiation, caustic injury, hereditary tylosis and Plummer-Vinson Syndrome.
One possible reason for early symptom development with detached leaf method might be that bacteria moved efficiently in the vascular system from injured base of chilli leaflet and caused blockage of vascular system as a result of colonization and tylosis thereby resulting in yellowish and chlorotic appearance of leaf tissues.
It would seem that the air permeability of a barrel is more complex, and less influenced by grain than by several other wood anatomical factors (such as tylosis filling the wood vessels or orientation of medullary rays on the stave).
The research concentrated on three families with a hereditary condition called tylosis with oesophageal cancer.
Miscellaneous genodermatoses: Beckwith Wiedmann syndrome,--Hogg -Dube syndrome, familial atypical multiple mole melanoma syndrome, hereditary tylosis, incontinentia pigmenti and supernumerary nipples.
All three have been told they have tylosis -an inherited skin condition that can lead to cancer of the oesophagus in later life.
Scientists from the faculty of medicine's molecular genetics and oncology group studied three families with inherited oesophageal cancer who also have a disorder called tylosis, that causes excessive thickening of the skin on the palms and soles.
Long-term achalasia, lye strictures due to ingestion, Plummer-Vinson syndrome, and tylosis (a rare autosomal dominant genetic disorder) may also predispose an individual to squamous cell carcinoma of the esophagus.
Similarly in cases of palms and soles involvement without other skin lesion, the diagnosis was made by excluding the other causes of palmoplantar hyperkeratosis like tinea, tylosis, etc.
PROFESSOR John Field (pictured below) at Liverpool university has led the research into tylosis.