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Rabbit Fever Sign
Tularemia infection [1].
Raccoon Sign
- The periorbital bruising associated with anterior basilar skull fracture or fracture of the nose and neuroblastoma. Sometimes associated with the reservoir phenomenon of cerebrospinal fluid in the sinus cavity [2]. Also known as “panda eyes”.
- The most common cutaneous manifestation of neonatal lupus erythematosus is erythematous, slightly scaly eruption on the face and periorbital skin (raccoon sign/owl-eye/eye mask).
- Periorbital hemorrhage due to laxity of blood vessels seen after proctoscopic examination (postproctoscopic periorbital Purpura) in patients having systemic amyloidosis is also called as Raccoon eyes/sign/panda sign.
Rag-sorters’s Sign
- Malignant pustule in rag-sorters [3].
- A febrile disease with cough and headache, seen in rag-sorters, and due probably to a bacillus.
Rain Rot Sign
Pustular desquamative dermatitis, caused by the zoonotic fungal Dermatophilus congolensis. Found in horses, cattle, sheep, and other mammals wordwide [4]. Also called Rain Scald sign and Dew Poisonning sign.
Rain Sclad Sign
Also called Rain Rot sign.
Rash-extinction Sign
Schultz-Charlton reaction phenomenon [5]. The specific blanching of a scarlatinal rash at the site of intracutaneous injection of scarlatina antiserum.
In 1918, Schultz and Charlton1 first reported that the intracutaneous injection of from 0.5 to 1 cc. of normal or scarlet fever convalescent serum would blanch the rash of scarlet fever at the site of injection. They also showed that the blanching substance was present in serum taken after the fourteenth day of scarlet fever, but that serum taken earlier in the disease did not have blanching power. Plain horse serum or diphtheria antitoxin failed to blanch the rash. Schultz and Charlton also made injections of a dilute solution of epinephrine hydrochloride intracutaneously, and found that the rash blanched within a few minutes. This blanching lasted five or six hours. In contrast, the reaction produced by scarlet fever convalescent serum appeared only after five or six hours and lasted several days. Schultz and Charlton expressed the belief that human serum contained some vasoconstricting factor which counteracted the vasodilating effect.
Rasin’s Sign
The pigmentation, usually brownish, occurring on the lid margins in many cases of hyperparathyroidism [6]. Also known as Jellinek‘s sign.
Stefan Jellinek
Austrian physician, 1871-1968 (Fig. 1 [See PDF]). He studied medicine at the University of Vienna from 1892 to 1898. From December 1898 to April...