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Red lunulae (dusky erythema of nail moon)

Prevalence in general population (GP): rare [~1% | 1:1 | weight: 1,00]


Most likely diagnostic options for red lunulae, which most often manifest in thumb nails - the first 3 all involve rheumatic immune disorders (ranked by 'weight' for the general population):

- ASSOCIATED MEDICAL CONDITIONS:

rheumatoid arthritis [~15% | 1:133 | weight: 0,11]
• primary Sjögrens syndrome [~17% | 1:250 | weight: 0,07]
• systemic lupus erythematosus [~16% | 1:2K | weight: 0,008]
• (severe) alopecia areata [~3% | 1:1K | weight: 0,003]
• lung/pulmonary disease [?% | 1:20 | weight: ?]
psoriasis [?% | 1:33 | weight: ?]
• congestive heart/cardiac failure [?% | 1:50 | weight: ?]
• other: poisoning [alcohol abuse/heavy metals]



- ASSOCIATED PSYCHOLOGICAL CONDITIONS:

(Unknown)

[1st figure = prevalence hand sign in condition | 2nd
figure = prevalence condition in GP | 3rd figure =
estimated hand sign weigth for condition relative
to GP (>0,5 = present in majority of GP cases)]
Red lunulae (dusky erythema of nail moon).

Quick summary:
about 5% of patients admitted to general medical and surgical wards have red lunulae.

[In every 100 red lunulae cases in the general population (GP) you can expect to find about 11 rheumatoid arthritis cases, 7 Sjögrens syndrome cases, etc.]


NOTICE: Keep in mind that every single hand sign always bares the potential
to have an association with multiple psychology- and/or health related themes;
a solid assessment always requires a consideration of hand sign combinations!


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