Original MICA image-reading exercise, unscored. No clinical narrative absent from the source is added.
- Describe visible findings before proposing an interpretation.
- Suggest an interpretation and at least one image limitation.
- Which clinical findings or investigations would complement this observation?
Reveal the explained reading
Livedo: a violaceous skin network
- Appearance
- Violaceous network
- Assess
- Response to warming
- Look for
- Ulceration, pain, ischaemia
- Limitation
- No cause established by a photograph alone
Morphological description
Reddish-purple lines outline pale areas, with several incomplete loops. No obvious necrosis or ulceration is visible within the displayed field.
Causes and diagnostic direction
Cold-related vasospasm may be benign. Persistent, extensive or symptomatic changes warrant assessment for vasculopathy, vasculitis or medication effects.
Differential diagnoses
Compare with heat-induced erythema and retiform purpura. Livedo racemosa typically has larger irregular, interrupted loops.
Pitfalls and limitations
This image establishes neither antiphospholipid syndrome nor vasculitis. Time course and clinical examination distinguish different mechanisms.
Take-home message
Identify the network, establish persistence and look for vascular or systemic features that change the next steps.
Sources
- DermNet — Livedo reticularis ↗
- డా. గన్నవరపు నరసింహమూర్తి — document iconographique original / original image ↗
Documentary review: 2026-10-16
Media source & rights
- Author
- డా. గన్నవరపు నరసింహమూర్తి
- Original source
- డా. గన్నవరపు నరసింహమూర్తి — Livedo_reticularis.jpg — CC0 1.0
- Licence
- CC0 1.0
- Changes
- Main image converted to lossless WebP, EXIF orientation applied and metadata removed. Full field, colours and annotations retained; proportional thumbnails without upscaling or clinical retouch. Original media licence retained.
- Dimensions
- 3024 × 4032 px
- Check
- 2026-10-16