Polymorphic Eruption of Extensive Cutaneous Sarcoidosis

Area of Science:

• Dermatology
• Clinical Medicine

Background:

• A 40-year-old male presented with a year-long history of asymptomatic, progressively enlarging reddish lesions.
• The lesions initially appeared on the face and subsequently spread to the neck, trunk, and arms.

Observation:

• Physical examination revealed multiple reddish-brown, shiny, firm papuloplaques and nodules on the face, neck, and arms.
• Specific findings included a perioral plaque with central depression and telangiectasia, and annular lesions on the arms with peripheral papules and central clearing.
• Subcutaneous and atrophic plaques were noted on the arms and back, while palms, soles, hair, nails, and mucosa remained unaffected.

Findings:

• The case describes a unique presentation of multiple cutaneous lesions with varied morphology, including papules, plaques, nodules, and subcutaneous lesions.
• The lesions exhibited distinct characteristics such as reddish-brown color, firmness, shininess, central depression, telangiectasia, atrophy, and annular configurations.
• The absence of systemic symptoms and involvement of specific areas like palms, soles, and mucosa are key diagnostic features.

Implications:

• This case highlights the importance of thorough dermatological examination for diagnosing rare cutaneous conditions.
• Understanding the morphology and distribution of lesions is crucial for differential diagnosis and appropriate patient management.
• Further investigation may be warranted to determine the underlying etiology and optimize treatment strategies for such presentations.