In immunocompromised hosts, this fungus can cause primary cutaneous lesions that begin as erythematous macules and rapidly progress to necrotic ulcers with a black eschar.
Often acquired from water sources ("fishtank granuloma"), this infection typically presents as a localized, crusted nodule or plaque on an extremity that can spread along lymphatic channels (sporotrichoid spread).
A systemic fungal infection that characteristically presents on the skin as verrucous (wart-like) or ulcerative lesions with sharply demarcated, advancing borders.
A chronic fungal infection causing slow-growing, verrucous, cauliflower-like nodules and plaques on the lower extremities, often with small black dots (sclerotic bodies) on the surface.
A fungal infection that can disseminate to the skin, causing a variety of lesions including papules, pustules, abscesses, and verrucous plaques, often around the central face.
In disseminated cases, particularly in immunocompromised patients, this fungal infection can present as umbilicated papules resembling molluscum or cryptococcosis, or as ulcerative lesions.
Transmitted by sandflies, this parasitic infection classically begins as a papule that enlarges into a nodule and then forms a characteristic painless ulcer with a raised, indurated border.
A chronic fungal infection characterized by slow-growing, keloid-like, verrucous or smooth nodules, typically on the ears, face, and extremities.
Also known as mycetoma, this is a chronic infection of the foot characterized by massive swelling, deformity, and multiple sinus tracts that discharge colored grains (sulfur granules).
A systemic mycosis where cutaneous lesions, particularly around the mouth and nose, have a unique "mulberry-like" appearance with fine hemorrhagic dots on the surface of ulcers.
An infection by pigmented fungi that can cause a solitary, inflamed subcutaneous cyst or abscess, but can also present as verrucous plaques or necrotic ulcers.
A fungal infection classically presenting as a nodule at the site of inoculation which ulcerates and is followed by a chain of secondary nodules along the draining lymphatic vessels.
