Plion M, Dalphin JC, Soumagne T. [Adenopathy and mammary carcinoma: It is sometimes in the details that one encounters hypersensitivity pneumonitis!].
Rev Mal Respir 2020;
37:752-755. [PMID:
32888731 DOI:
10.1016/j.rmr.2020.07.004]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 07/04/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION
Hypersensitivity pneumonitis (HP) is an interstitial lung disease due to an immunological reaction to exposure, by inhalation, to a large variety of antigens. The patho-physiological mechanism remains poorly understood. The diagnosis can be challenging and requires a detailed medical history taking especially when the clinical presentation is atypical or when the causal agent remains unknown.
CASE REPORT
We report the case of a 75-year-old woman with a history of mammary carcinoma who presented with recently identified intramammary adenopathy. Biopsy of the adenopathy revealed non-necrotising, giant cell epithelioid granuloma. A diagnosis of hot tub lung with extra-pulmonary granulomatous lymph node involvement was made based on the clinical, functional, radiological and microbiological investigations. The evolution was favorable following antigen avoidance.
CONCLUSION
Extrapulmonary lymph node involvement is rare in HP, suggesting a systemic inflammatory involvement.
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