Key result
An 85-year-old woman with HTLV-1-associated bronchioloalveolar disorder presented with a rare miliary pattern of micronodules on HRCT and non-necrotizing granulomas confirmed by transbronchial lung cryobiopsy.
Case Report (n=1)
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This rare case highlights that HABA can present with a miliary pattern on HRCT and non-necrotizing granulomas on pathology, requiring differentiation from sarcoidosis and miliary tuberculosis.
Human T-cell lymphotropic virus type-1 (HTLV-1)-associated bronchioloalveolar disorder (HABA) is a pulmonary disorder characterized by lymphocytic infiltration of the peribronchiolar space and interstitium in HTLV-1 carriers and in adult T-cell leukemia/lymphoma (ATLL). We herein report an 85-year-old woman carrying HTLV-1 with HABA who presented with a miliary pattern of micronodules in both lungs on high-resolution computed tomography and a lymphocytic infiltrate with non-necrotizing granulomas on pathology. This rare case of HABA should be differentiated from sarcoidosis, hypersensitivity pneumonitis, or miliary tuberculosis.
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Kimura et al. (2023) conducted a case report in HTLV-1-associated bronchioloalveolar disorder (HABA) (n=1). HTLV-1 infection was evaluated. An 85-year-old woman with HTLV-1-associated bronchioloalveolar disorder presented with a rare miliary pattern of micronodules on HRCT and non-necrotizing granulomas confirmed by transbronchial lung cryobiopsy.
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