Disseminated sporotrichosis masquerading as tuberculosis in a patient without overt immunodeficiency: challenges in tuberculosis-endemic area - Takeaways - MDSpire
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Disseminated Sporotrichosis Presenting as Tuberculosis in an Immunocompetent Patient: Challenges in Regions Endemic to Tuberculosis

  • By

  • Natthapong Suthammopasut

  • Athitaya Luangnara

  • September 8, 2026

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  • 1

    Sporotrichosis is an emerging mycosis caused by the Sporothrix schenckii complex and is increasingly reported worldwide, with the highest burden in South America and Asia.

  • 2

    Disseminated sporotrichosis is uncommon and occurs more often in immunocompromised patients, but it can also occur without overt immunodeficiency and may resemble tuberculosis.

  • 3

    A 78-year-old man with treated diffuse large B-cell lymphoma in long-term remission developed disseminated subcutaneous nodules and was empirically treated for tuberculosis because of granulomatous inflammation and local TB endemicity.

  • 4

    Fungal culture identified Sporothrix schenckii complex, prompting treatment with amphotericin B followed by itraconazole; the cutaneous lesions healed and pulmonary abnormalities markedly improved.

  • 5

    Diagnosis requires a high index of suspicion, especially in tuberculosis-endemic settings, because disseminated sporotrichosis can resemble tuberculosis and other infections associated with granulomatous inflammation.

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