Rare Diseases

Case Letter

Scurvy Masquerading as Reactive Arthritis

Patients with scurvy often pose a diagnostic dilemma because their presenting symptoms can lead physicians down a laborious and costly road of...


Case Reports

Cutaneous Rosai-Dorfman Disease

Cutaneous Rosai-Dorfman disease can clinically present with great variety, mimicking many other dermatologic conditions; thus, patients presenting...

Case Letter

Cutaneous Collagenous Vasculopathy

In cutaneous collagenous vasculopathy, skin biopsy may demonstrate eosinophilic hyaline thickening of superficial dermal blood vessels with mild...