Key result
Left atrial myxoma presents with atypical palmar granuloma annulare as an uncommon systemic manifestation.
Case Report (n=1)
Atypical interstitial granuloma annulare may present as an uncommon systemic manifestation of atrial myxomas.
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May prompt myxoma evaluation in unexplained granuloma annulare; single case leaves association hypothesis-generating.
A 73-year-old man presented with lower back pain and bilateral palmar lesions. Urine culture grew Streptococcus agalactiae and C-reactive protein was raised. He was treated with antibiotics for urinary tract infection with suspected pyelonephritis. An echocardiogram ordered to look for infective endocarditis was suggestive of a left atrial myxoma. He subsequently developed an acute right common iliac artery embolus, which resolved with conservative management. He underwent a successful open-heart left atrial mass and appendage resection, with histopathology confirming atrial myxoma. Skin biopsies of the lesions ten weeks post onset showed granuloma annulare of the palms.
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Dhakal et al. (2021) conducted a case report in Atrial myxoma and atypical interstitial granuloma annulare (n=1). Open-heart left atrial mass and appendage resection was evaluated. A 73-year-old man with a left atrial myxoma presented with atypical interstitial granuloma annulare of the palms, suggesting a possible uncommon systemic manifestation of atrial myxomas.
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