838 PETEE BASSOE 



Hemihypertrophy 



Unilateral hypertrophy is a congenital malformation which gives to 

 the victim the appearance of possessing a body with the lateral halves 

 belonging to two different persons not of the same size. Superficially, the 

 appearance suggests unilateral acromegaly, but symptoms of hypophysis 

 tumor or/ any other progressive brain lesion are lacking. There are no 



Fig. 21. Hemihypertrophy. (After Bassoe. Am. J. Insan.) 



eye symptoms, and the sella turcica is not enlarged. The early literature 

 is fully reviewed by Trelat and Monod, and later reviews with reports of 

 new cases are contributed among others by Arnheim, Cagiati, Bassoe, and 

 Stier. Heredity plays no role. The male sex and the right side seem 

 to predominate. The hypertrophy mainly involves the tissues of mesoblas- 

 tic origin, namely, the subcutaneous tissues, muscle, and bone. Nevi and 

 pigmentation of the skin are usually present on the hypertrophic side. 

 Postmortem examinations have not thrown any light on the underlying 



