COD 123 - Peridiaphragmatic Inflammation & Fibrosis - PDIF - New CT Sign of Inflammatory Myopathy ILD

The PDIF sign is basically the presence of a fibrosing ILD typically compacted within the last 2 cm of the peridiaphragmatic lung and may suggest not just CTD-ILD but specifically myositis ILD

Bhavin Jankharia

46-yrs old first presented in Jul 2020 with an NSIP pattern, which now retrospectively shows the PDIF sign. She was then diagnosed to have anti-synthetase syndrome and her ILD has kept progressing over 5 years but keeps showing this PDIF sign.

The video describes this recent paper, the PDIF sign, 2 other cases with this sign, other signs pointing towards CTD-ILDs and why it is important to be be cognizant of all these signs

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