L92: Granulomatous disorders of skin and subcutaneous tissue

Granulomatous disorders of skin and subcutaneous tissue represent a group of conditions where the body's immune response system forms granulomas or small areas of inflammation in the skin and the layer of fat tissue beneath it called subcutaneous tissue. These conditions occur when the body tries to wall off substances it perceives as foreign but is unable to remove. Common causes include infections, such as bacteria or fungi, certain medications, or exposure to foreign substances. The skin's reaction typically causes symptoms like lumps or nodules, rashes, skin discoloration, or ulcers. It can be asymptomatic, discovered coincidentally or proceed with consequences such as pain, disfigurement, or functional impairment. The conditions can vary widely in severity and progression and affect every skin type without regard to age, race, or gender. It's crucial to identify the source of the granuloma formation, as continued exposure or persistent infection may worsen the conditions.