A strange greenish-blue bruise appeared on a woman’s arm after practicing acrobatic yoga. Co
Doctors described a strange case of a womanin a report published in JAMA Dermatology. The patient, who is in her 30s, reported that the bruise appeared a few days after she dislocated her left arm. She turned to doctors two years after the injury; the bruise was still there.
Doctors examined her hand, noting “fuzzyoutlined and hardened blue-green plaque" on its back side. An x-ray showed a tumor in the soft tissues of the arm. A magnetic resonance imaging (MRI) scan showed a small mass just under the skin. A biopsy showed that it was filled with fat cells, the iron-containing pigment hemosiderin and spindle cells. These cells appear in various tumors of the skin, mucous membrane of internal organs, bones and soft tissues.
As a result, doctors found out that the woman had a veryrare hemosiderotic fibrolipomatous tumor (HFLT, Hemosiderotic Fibrolipomatous Tumor). It most often forms on the feet or ankles, but appears on the hand or wrist in 10% of reported cases.
"The exact pathogenesis of HFLT has not yet been elucidated, and the role of trauma in its development requires further study," the scientists conclude.
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