Pathology Quiz Online

                        March 2005       Case - 46

                                                  Dr  Sampurna Roy  MD 

                    Clinical History:  A 25 year old male with a rapidly enlarging tender nodule on the left forearm. 

              The nodule is of 3 weeks duration.

              Gross:   Well circumscribed, 2.0 cm in diameter. Cut surface has a greyish-white

              fibrous appearance  with focal myxoid areas.

              Clues to diagnosis:   1. Swirling bundles of spindle-shaped cells.
                                       2. Spindle cell nuclei not hyperchromatic or pleomorphic.
                                       3. Mitoses are frequent but no atypical forms.
                                       4. Variable myxoid stroma.
                                       5. Extravasation of red blood cells.
                                       6. Scattered lymphocytes  are dispersed throughout the lesion.

                                                      DIAGNOSIS: