Related Experiment Video
Updated: Feb 14, 2026

Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus
Published on: May 16, 2025
Unusually extensive scalp ulcerations manifested in pemphigus erythematosus
Neha Chandan1, Eden P Lake, Lawrence S Chan
1University of Illinois College of Medicine, Chicago, Illinois. nchand8@uic.edu.
Senear-Usher Syndrome, a rare autoimmune skin disorder, presents with overlapping features of pemphigus foliaceus and lupus erythematosus. This case highlights diagnosis via immunofluorescence and ongoing treatment for scalp ulceration.
Area of Science:
- Dermatology
- Autoimmunology
- Pathology
Background:
- Senear-Usher Syndrome (pemphigus erythematosus) is an autoimmune blistering disease.
- It exhibits clinical overlap between pemphigus foliaceus and lupus erythematosus.
- Typical lesion sites include the scalp, face, and upper torso.
Observation:
- A patient presented with progressive scalp ulcers.
- Clinical signs included hyperpigmentation and eroded plaques with hemorrhagic crusts.
- These symptoms indicated a severe manifestation of the condition.
Findings:
- Direct immunofluorescence confirmed pemphigus erythematosus.
- Key findings were intercellular and dermoepidermal junction deposition of immunoglobulin G and complement.
- This diagnostic pattern is crucial for differentiating autoimmune blistering diseases.
Implications:
- Early and accurate diagnosis is vital for effective management.
- Treatment involves systemic steroids and steroid-sparing immunosuppressants.
- Understanding immunofluorescence findings aids in patient management and prognosis.
Related Concept Videos
Unusual Results
According to the range rule of thumb, any value above or below two standard deviations, 2σ from the mean, μ is considered unusual.
Maximum unusual value =...
Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies
Few clinical manifestations differentiate gastric ulcers from duodenal ulcers. Distinctions in the location, timing, and pain relief are crucial for healthcare providers in differentiating between gastric and duodenal ulcers during clinical assessments.
z Scores and Unusual Values
This score indicates how far a value is from the mean in terms of standard deviation. For example, if a data value has a z score of +1, the researcher can infer that the particular data value is one standard deviation above the mean. If another data...
Peptic Ulcer Disease II: Pathophysiology
Damaging agents such as Helicobacter pylori, gastric acid, pepsin, and nonsteroidal anti-inflammatory drugs (NSAIDs) can weaken the mucosal defense, allowing hydrogen ions to infiltrate back and harm epithelial cells.
Peptic Ulcer Disease I: Introduction
An acute ulcer, marked by superficial erosion and minimal inflammation, swiftly resolves upon identifying and addressing the underlying cause. In contrast, a chronic ulcer persists, potentially eroding through the muscular wall and forming fibrous tissue.
Peptic ulcers can also be...
Peptic Ulcer Disease IV: Management
The therapeutic approach involves ensuring adequate rest, implementing drug therapy, promoting smoking cessation, making dietary modifications, and emphasizing long-term follow-up care.
Pharmacological management
The prevailing therapy for peptic ulcers involves a combination of managing the patient's current...

