Date: 26 November 2013
Secondary metabolites, 3D structure: Trivial name – O-Methylasparvenone
Copyright: n/a
Notes:
Species: A. parvulusSystematic name: 1(2H)-Naphthalenone, 7-ethyl-3,4-dihydro-4,8-dihydroxy-6-methoxy-, (R)-Molecular formulae: C13H16O4Molecular weight: 236Chemical abstracts number: 56495-98-8Selected references: Metabolites of Aspergilli. Part IV. New naphthalenones and 6-ethyl-7-methoxyjuglone from Aspergillus parvulus. Chao, Pei-Dawn; Schiff, Paul L., Jr.; Slatkin, David J.; Knapp, Joseph E. Sch. Pharm., Univ. Pittsburgh, Pittsburgh, PA, USA. Journal of Chemical Research, Synopses (1979), (7), 236.
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The chest x-ray shows a patient who had a left lung transplanted in May 2003 for cryptogenic fibrosing alveolitis, which was diagnosed post-transplant as sarcoidosis.
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Gross pathology demonstrating the great pleural thickness and two cavities (upper lobe and superior segment of lower lobe) with fragments of fungal mass.
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Histopathological appearance of a fungus ball. Note a conidial head resulting from fungal exposure to the air.
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Histopathological appearance of a fungus ball caused by Scedosporium apiospermum. The presence of anneloconidia differentiates it from Aspergillus.
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Chronic necrotising aspergillosis. Hyaline hyphal and calcium oxalate crystals obtained by needle aspirate biopsy from a diabetic patient with chronic necrotizing aspergillosis caused by Aspergillus niger (Papanicolaou, x 100).
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Aspergillus niger fungus ball and acute oxalosis. Higher magnification of adjacent replicate section.
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Oxalate crystals within renal tubuli (H&E, phase contrast, x 100). This patient developed acute oxalosis.
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Lung surface. Fungus ball, severe parenchymal fibrosis and pleural thickening.
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