Cutaneous Granulomatosis: a Comprehensive Review

Area of Science:

• Dermatology
• Pathology
• Immunology

Background:

• Cutaneous granulomatosis encompasses a spectrum of skin inflammatory conditions.
• These are triggered by various stimuli, including infections, foreign bodies, and metabolic factors.
• Pathophysiological mechanisms remain incompletely understood.

Purpose of the Study:

• To review the classification and clinical presentation of cutaneous granulomatosis.
• To discuss the pathogenic mechanisms of infectious and non-infectious granulomas.
• To propose a diagnostic approach for suspected cases.

Main Methods:

• Literature review and synthesis of existing knowledge on cutaneous granulomatosis.
• Classification based on etiology (infectious vs. non-infectious) and clinical patterns (localized vs. disseminated).
• Histological features and diagnostic considerations are discussed.

Main Results:

• Non-infectious granulomas include granuloma annulare, necrobiosis lipoidica, and sarcoidosis.
• Infectious granulomas are caused by mycobacteria, parasites (e.g., Leishmania), or fungi.
• Clinical and histological features aid in differentiating localized and disseminated forms.

Conclusions:

• Accurate classification and understanding of granulomatous skin diseases are crucial.
• Diagnostic procedures should be tailored to suspected etiology and clinical presentation.
• Further research into pathophysiology is needed for improved therapeutic strategies.