10th July 2023

Respiratory

Sarcoidosis

Skin manifestations are seen in a quarter of those with systemic sarcoid, sometimes in the absence of systemic disease. Cutaneous manifestations include erythema nodosum, lupus pernio (see image below), scar sarcoid and scarring alopecia.

Lupus pernio

Image Source: Wikimedia Commons (2011). Lupus pernio 01, Licensed under a creative commons licence. Available for free at: https://commons.wikimedia.org/wiki/File:Lupus_pernio_01.jpg (Accessed on: 16 July 2022).

Tuberculosis

Tuberculosis is associated with scrofuloderma (breakdown of skin overlying TB focus), lupus vulgaris (50%), verrucosa cutis, scarring alopecia, and gumma.