Related Experiment Video
Updated: Aug 11, 2026

07:36
Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
Published on: November 20, 2015
Chronic omphalitis in a 4-month-old girl
1Groupe de Pathologie Pediatrique, Hôpital des Enfants Malades, Paris, France.
Pathology, Research and Practice
|March 1, 1991
Summary
A rare case of chronic omphalitis in an infant revealed a key diagnostic clue: scanty inflammatory cells despite high peripheral leucocyte counts. This finding suggests Deficiency in Leukocyte Adhesion Molecules (DLAM), an uncommon inherited disorder.
Area of Science:
- Immunology
- Pediatrics
- Genetics
Background:
- Chronic omphalitis can present from birth, posing diagnostic challenges.
- Distinguishing inflammatory conditions from congenital anomalies is crucial in neonates.
Observation:
- A 4-month-old girl presented with chronic omphalitis since birth.
- Biopsy showed edematous tissue with surprisingly few inflammatory cells.
- Peripheral blood leucocytes were significantly elevated (>30,000/microliter).
Findings:
- The discrepancy between local scant inflammatory infiltrate and high peripheral leucocyte count suggested an underlying immune defect.
- Deficiency in Leukocyte Adhesion Molecules (DLAM) was suspected.
- Immunocytochemical analysis using anti-CD11a, CD11b, and CD18 antibodies is required for confirmation.
Implications:
- This case highlights DLAM as a rare cause of omphalitis.
- Early diagnosis of DLAM is vital for managing this autosomal recessive inherited disorder.
- Prompt immunocytochemical testing can confirm DLAM, enabling appropriate patient care.
More Related Videos
Related Concept Videos
Development of Immunocompetence
The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
Acute Pharyngitis
Introduction
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
Chronic Pharyngitis
Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa.
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
Tonsillitis I: Introduction
Tonsillitis is inflammation of the tonsils, which are two lymphoid tissue masses at the back of the throat. This condition can cause discomfort and irritation in the throat.
Etiology
Three primary contributing factors have been identified.
Etiology
Three primary contributing factors have been identified.
Viral Meningitis
Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
Cryptococcal Meningitis
Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...

