Ontogenetic explanation for tegmen tympani dehiscence and superior semicircular canal dehiscence association.

Objectives: To analyze the ontogeny of the superior semicircular canal and tegmen tympani and determine if there are common embryological factors explaining both associated dehiscence.

Methods: We analyzed 77 human embryological series aged between 6 weeks and newborn. Preparations were serially cut and stained with Masson's trichrome technique.

Age differences in presentation, diagnosis pathway and management of colorectal cancer.

Background: The gap in survival between older and younger European cancer patients is getting wider. It is possible that cancer in the elderly is being managed or treated differently than in their younger counterparts. This study aims to explore age disparities with respect to the clinical characteristics of the tumour, diagnostic pathway and treatment of colorectal cancer patients.

[Peculiarities in the development of the superior semicircular canal].

Objective: Our objective was to study the ontogeny of the superior semicircular canal in order to describe its peculiarities.

Methods: We analyzed 76 series of human embryos aged between 32 days (6mm) and newborns. The samples were cut serially and stained using Martin's trichrome technique.