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The distribution of nodules shown on HRCT is the most important factor in making an accurate
pattern. ... In most cases small ... Pulmonary #HRCT #NodularPattern ... #Nodular #Pattern ... Perilymphatic #Comparison
PALM RASHES 
Common features and patterns:
1.	Color:
o	Red or erythematous: Common in inflammatory or allergic reactions.
o	Purple or purpuric:
Common features and patterns ... Raised (papular or nodular ... Seen in systemic causes ... o Peripheral patterns ... disease. 6 Causes
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
and pruritus (e.g ... honey-colored crusts ... • Herpes simplex ... Christmas tree pattern ... Firm red to brown nodule
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tracts Immune Complex ... tract, and often causes ... : erythematous nodules ... - (C-ANCA) pattern ... - (P-ANCA) pattern