Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Pronormoblast
Introduction
Overview
Overview
A proerythroblast (or rubriblast, or pronormoblast) is the earliest of four stages in development of the normoblast.
Laboratory findings
Laboratory findings
In histology, it is very difficult to distinguish it from the other “blast” cells (lymphoblast, myeloblast, monoblast, and megakaryoblast.) The cytoplasm is blue in an H&E stain, indicating that it is basophilic.
“Pronormoblast” vs. “proerythroblast”
“Pronormoblast” vs. “proerythroblast”
Some sources consider the terms “pronormoblast” and “proerythroblast” to be synonyms.[1] However, other sources[2] consider “proerythroblast” to be a parent term, divided into the following two categories:
- “pronormoblast” – normal develoment
- “promegaloblast” – abnormal development
Additional images
Additional images
-
Blood cell lineage -
Proerythroblasts -
Proerythroblasts
External links
External links
- Histology image: 01804loa – Histology Learning System at Boston University – “Bone Marrow and Hemopoiesis: bone marrow smear, erythroblast series with proerythroblast”
- Template:OklahomaHistology
- Histology at KUMC blood-blood04
- Image and description at purdue.edu
- Histology of “promegaloblast” at marist.edu (pernicious anemia)
- Interactive image at usuarios.lycos.es
- Overview at temple.edu
Template:Skin and subcutaneous tissue symptoms and signs Template:Nervous and musculoskeletal system symptoms and signs Template:Urinary system symptoms and signs Template:Cognition, perception, emotional state and behaviour symptoms and signs Template:Speech and voice symptoms and signs Template:General symptoms and signs
Template:SIB cs:Proerytroblast id:Rubriblas sk:Proerytroblast
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] There can be one or more than one Editor-In-Chief. You may also apply to be an Associate Editor-In-Chief of one of the subtopics below. Please mail us [2] to indicate your interest in serving either as an Editor-In-Chief of the entire topic or as an Associate Editor-In-Chief for a subtopic. Please be sure to attach your CV and or biographical sketch.