In the original study of IF, individuals diagnosed with the disorder were women (16 cases) or men (12 cases) age 15 to 95 years; In a more recent study, diagnosed individuals were women (15 cases) or men (29 cases) aged 23–96 years old. Most individuals in these two studies were in their 8th or 9th decade when diagnosed with IF and, overall, had a relatively long history of being invalided, immobilized, and/or bed-ridden due to other disorders such as severe osteoarthritis, rheumatoid arthritis, chronic renal failure, chronic obstructive pulmonary disease, cancer, or dementia. In the study of 44 individuals, however, an appreciable number of patients did not have a history of debilitation. Some individuals reported that they had prior trauma in the areas where their lesions developed. Individuals present with a painless or painful and sometimes disabling slowly growing mass that is ill-defined, located in deep subcutaneous tissues, and, rarely, has spread into an adjacent skeletal muscle or tendon. The masses vary from 1.3 to 10 cm in maximum diameter. In the study of 44 cases, 76.7% of the tumors were located around the base of a hip (11 cases), shoulder (7 cases), or greater trochanter of the femur; 4 were in a hip joint, 4 in a thigh, 3 in the iliac crest, 2 in a buttock, and 1 each in the lumbar region, scapular region, or a deltoid muscle; in the remaining cases, ~11.2% of the tumors were on the chest wall away from the shoulders and ~11.2% were on the back. Typically, the tumors reside over boney protuberances which, it is thought, provide the mechanical pressures that cause poor blood flow to nearby subcutaneous tissues, aberrant wound healing in these tissues, and thereby the development of IF.
Ischemic fasciitis
Plantar fasciitis
Necrotizing fasciitis
Anterior compartment syndrome
Eosinophilic fasciitis
Heel pad syndrome
Fasciitis
Osteoradionecrosis