Erythema gyratum repens and undifferentiated carcinoma.
D000368:Aged; D001932:Brain Neoplasms / Q000150:complications*; D002294:Carcinoma, Squamous Cell / Q000150:complications*; D002420:Cauda Equina; D004890:Erythema / Q000209:etiology*; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000150:complications*; D009362:Neoplasm Metastasis; D014582:Urticaria Pigmentosa / Q000209:etiology*