Answers

Case 1

A.L. - 12 year old African American male with one year history of slowly enlarging left hand mass. The mass is non-tender, and his hand is NVI.

Embryonal Rhabdomyosarcoma

Case 2

M.C. - 29 year old white male with five month history of left hand pain. Physical exam demonstrates tenderness to palpation overlying base of 3rd metacarpal, left hand NVI.

Giant Cell Tumor

Case 3

R.M. - 16 year old white male with one year history of right ankle pain, recent onset of limp. Physical exam significant for TTP overlying lateral aspect of subtalar joint, ambulates with an internally rotatated and everted right foot.

Osteoblastoma

Case 4

D.V. - 66 year old white female with four month history of left calf mass, first noticed after car ride from Florida. Mass is non-tender, extremity NVI.

Malignant Fibrous Histiocytoma

Case 5

A.B. - 65 year old white female with one year history of right shoulder pain.

Synovial Chondromatosis

Case 6

D.W. - 33 year old male with long history of soft tissue mass overlying left patella, with recent onset of pain with activity and tenderness.

Glomus Tumor

Case 7

C.G. - 21 year old white female college lacrosse player with four month history of left shin pain worsened by activity. Physical exam demonstrates TTP overlying distal left tibia, extremity NVI.

Fibrous Dysplasia

Case 8

D.B. - 69 year old white female with five year history of non-tender, slowly-enlarging right calf mass.

Liposarcoma

Case 9

T.H. - 19 year old African American male with three year history of soft tissue mass anterior to right patella. Recent onset of pain with activity and TTP.

Hemangioma