In this task, you will be given sentences in which your task is to recognize the name of the organ of the body. An organ is a collection of tissues that structurally form a functional unit specialized to perform a particular function. Although there might be several correct answers, you need to write one of them.

Q:  This case of benign mucous membrane pemphigoid ( BMMP ) is unusual in that blistering , scarring lesions were confined to the skin for 15 years before mucous membranes were involved .

A: skin
****
Q:  Cerebral blood flow ( CBF ) was measured with continuous arterial spin - labeling perfusion magnetic resonance ( MR ) imaging in 14 children with sickle cell disease and seven control subjects .

A: Cerebral
****
Q:  Image - directed and color Doppler studies of gallbladder tumors .

A:
gallbladder
****