Pitt pit

Discussion:

Femoroacetabular impingement (FAI) syndrome is a group of morphological changes involving femoral head and/or neck combined with pain and/or range of movement which causes early degenerative disease.

There are three types of FAI:

  • pincer
  • cam (presented in this case)
  • mixed

A "cam" is a part of camshaft a car's engine part. It looks like a bump on a stick - like a shaft, similarly to abnormality seen in the area of femoral neck in FAI. 

Pitt pit is a synovial herniation cyst localized typically in antero superior aspect of the femoral neck. Its significance is debatable. In most of the cases Pitt pit has no clinical significance however in some cases it is associated with femoroacetabular impingement.

In this case, Pitt pit helped to reach a diagnosis. After spotting the synovial cyst reporter investigated in detail the femoral heads, which were abnormal. 

The patient was referred to the Orthopedic clinic for review and treatment plan.

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