Fibromatosis - dorsolumbar region

Case contributed by Dr Maulik S Patel

Presentation

RIGHT lower dorsal paraspinal swelling with pain - - 2 - 3 wks. Radiograph - DL spine - No bony abnormality.

Patient Data

Age: about 22 yrs
Gender: Female
Modality: Ultrasound

Well-defined ovoid lesion is seen in region of interest.

Size                 - Craniocaudal - 62 mm,  Axial - 50 mm, Anteroposterior - 20 mm

Location          - Deep to subcutanoeus fat , Superficial to ribs, Involves paraspinal muscle

                        NO adjacent rib cortex erosion.   

Morphology -   Hypoechoic.   NO calcification. Not compressible.

Dopplar           - Flow signals are noted.

Case Discussion

Well-defined margins with vascularity were two basic findings favouring solid lesion of non-specific etiology.  However, these two basic findings were ignored ( definitely by me ) and a suspicious finding of central necrosis was given more importance. 

MR done a wk later, showed solid tumor ( not uploaded, no copy right ).

Surgical excision was done - operative finding of a solid lesion.

Histopathology - no necrosis. Solid lesion reported to be fibromatosis.

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Case Information

rID: 32933
Case created: 21st Dec 2014
Last edited: 17th Dec 2015
Inclusion in quiz mode: Included

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