Sentence:  The adult Kafka – the Kafka vermiculated by <WSD>tubercular</WSD> bacilli after having been played on for decades, as a demonic organist might press fleshy keys and pull bony stops, by his own relentless neurasthenia – reached a mystical appreciation of his youthful velleity, characterising it as a desire both to expertly hammer together a table and at the same time ‘do nothing'. 
Meaning of the word marked with <WSD> tags:  Of, pertaining to, or having tuberculosis.