Question

A 55-year-old patient from Chattisgarh presents with progressive muscle weakness, stiffness of both lower limbs, and complete paralysis. What is the most important history to ask?

• A. Dietary history
• B. Medical history
• C. Present illness
• D. Socioeconomic history

Hint:

Consider an endemic neurological disease in Chattisgarh linked to consumption of a specific drought-resistant legume.

Answer 1

The Correct Option is A

Step 1: Analyse the clinical clues. A 55-year-old from Chattisgarh (a state in central India) presenting with progressive muscle weakness, stiffness, and paralysis of both lower limbs (spastic paraplegia) should raise suspicion for Neurolathyrism.

Step 2: Understand Neurolathyrism. Neurolathyrism is a neurological disease caused by consumption of Lathyrus sativus (grass pea / khesari dal), a drought-resistant legume commonly eaten by poor populations in Chattisgarh, Madhya Pradesh, and Bihar during periods of food scarcity. The toxin responsible is ODAP (beta-N-oxalyl-L-alpha,beta-diaminopropionic acid), an excitotoxin that causes motor neuron damage, leading to spastic paralysis of the lower limbs.

Step 3: Why dietary history is most important. The diagnosis of neurolathyrism is clinical and epidemiological, supported by a history of chronic consumption of L. sativus. Medical history, present illness, and socioeconomic history are all important but do not pinpoint this specific diet-related etiology. Dietary history is the key diagnostic clue in this endemic region.

Conclusion: The most important history to ask is Dietary history (specifically, prolonged consumption of khesari dal/Lathyrus sativus).