What is the pathophysiology of ocular tuberculosis?
PATHOPHYSIOLOGY/DEFINITION
Ocular involvement from TB can either occur as a primary active infection or a secondary infection from a distant site, usually through hematogenous spread.
The conjunctiva, cornea, and sclera are sites of primary ocular involvement.What are the 4 stages of TB pathogenesis?
TB infection happens in 4 stages: the initial macrophage response, the growth stage, the immune control stage, and the lung cavitation stage.
These four stages happen over roughly one month.What are the pathological changes of tuberculosis?
On microscopic level the tuberculous granuloma is an organized aggregation of immune cells and debris.
It contains macrophages that have undergone morphological change into epithelioid cells which form into zipper-like arrays around the necrotic centre.
They retain the ability to phagocytise mycobacteria.- The most common ocular TB manifestation is granulomatous uveitis.
The most common presentation is posterior uveitis.
The most typical lesions related to ocular TB are choroidal granulomas, occlusive retinal vasculitis, and multifocal serpiginous-like choroiditis.
Communication Financière au 31 décembre 2022
Methodes topologiques dans le calcul des reseaux electriques
Les Méthodes de l'écoulement de puissance
21 Introduction L'étude de la circulation de puissance des réseaux
Exercice 01 :
MODELISATION DES RESEAUX ELECTRIQUES
Un exemple de matrice de compétences (pour la fonction de
Mécanicien(ne) de maintenance
Formulaire de développement des compétences
