{'fraction_non_alphanumeric': 0.024242424242424242, 'fraction_numerical': 0.00808080808080808, 'mean_word_length': 5.2, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Larsen's syndrome: Congenital dislocation of multiple large joints of the extremities associated with an unusual flat facies.

SUMMARY 
 
Larsen's syndrome, first reported in 1950, is characterised by a flattened fades, congenital dislocation of multiple large joints and foot deformities. The mental development is normal. A child who fulfills the criteria for this diagnosis is reported. This is a rare congenital disorder of unknown etiology, although its clinical recognition is rather easy.