PMC6159233_01
CT scan of thorax shows 1.2 cm pulmonary nodule. No associated mediastinal lymphadenopathy is seen. No other discrete nodules are present.
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There was no mediastinal or hilar lymphadenopathy (Figure 1).
scan shows lobulated pulmonary nodule, not significantly avid to be diagnostic of malignancy.
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On positron emission tomography scan, the pulmonary nodule was found to be non-avid (Figure 2).
Whorls of lamellar fibrosis.
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Lamellar fibrosis was evident (Figure 3).
Masson's stain confirms collagen (green).
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Masson's stain confirmed hyaline lamellar fibrosis whereas Congo red stain for amyloidosis was negative (Figures 4 and 5).
Negative Congo red stain for amyloidosis.
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Masson's stain confirmed hyaline lamellar fibrosis whereas Congo red stain for amyloidosis was negative (Figures 4 and 5).