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Uncategorized

Derm Dx: Asymptomatic Filiform Plaque on the Scalp

Nevus sebaceous (also known as nevus sebaceous of Jadassohn) is a benign hamartoma that most commonly presents as a waxy yellow- to orange-colored patch or plaque on the scalp or face. Lesions are present at birth or arise in early childhood. The nevus develops a verrucoid appearance over time and remains devoid of hair. The…

Ortho Dx: Worsening Foot Pain in a Boy

Kohler disease, or osteochondrosis of the tarsal navicular, is a condition of spontaneous osteonecrosis of the navicular that occurs in pediatric patients aged 4 to 8 years during the period of ossification of the bones in the foot. The navicular is the last tarsal bone to ossify in children, and performing weight-bearing exercise is thought…

Derm Dx: Multiple Itchy Plaques on the Trunk and Extremities

Bullous pemphigoid is the most common bullous autoimmune disease and typically affects elderly individuals. The condition is characterized by tense bullae that arise on erythematous or urticarial plaques. Atypical variants include pemphigoid nodularis, pemphigoid vegetans, papular pemphigoid, erythrodermic pemphigoid, and nonbullous pemphigoid. The nonbullous subtype commonly presents with severe pruritus and other nonbullous manifestations such…

Ortho Dx: Elbow Pain in a Baseball Pitcher

The UCL is a triangular-shaped ligament on the medial side of the elbow. The strong anterior bundle originates at the medial epicondyle, inserts into the ulna, and maintains most of the valgus stability. Overhead throwing causes valgus stress to the joint and can result in a sprain or tear of the UCL. Athletes with pathology…

Derm Dx: Can You Diagnose This Patient’s Nasal Condition?

Rhinophyma is a disfiguring condition that manifests as progressive thickening of the soft tissue of the nose. The disorder is related to rosacea, and many clinicians consider it to be a severe variant of this disease. The cause of rhinophyma is unknown; postulated etiologies include immune dysfunction, angiogenesis promoted by ultraviolet radiation, or infestation with…

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