The following are predisposing factors for Esophageal carcinoma except
High-Yield Explanation
Answer is D (Benzene therapy) Benzene therapy has not been mentioned in the best of predisposing factors for carcinoma esophagus, and is the single best answer of exclusion. Predisposing factors for carcinoma esophagus : 1. Alcohol consumptionQ 2. Smoking cigarettes Q 3. Ingested Carcinogens Nitrates Q Smoked opiates Fungal toxins in pickled vegetables 4. Mucosal damage Chronic AchalasiaQ Lye ingestion / Hot tea Radiation induced strictures Q 5. Host Susceptibility 1. Patterson Kelley syndrome Q or Plummer Vinson syndrome Q 2. Esophageal web v + GlossitisQ + Iron deficiency 2. Tylosis palmaris et plantaris Q..Congenital hyperkeratosis Q and pitting ofpalms and soles Q 6. Chronic Gastric Reflux, ie. Barrett's esophagus for Adenocarcinoma Q