title: Malignant melanoma of soft parts with osteoclast-rich giant cells: A rare tumour of the jejunum.
abstract: Malignant melanoma of soft parts (MMSP), first described by Franz M. Enzinger, is a rare tumour of unknown cell origin. We describe a case of a 45-year-old male who presented with a one-year history of abdominal pain, weakness, and anaemia. Computerised tomography enteroclysis showed a mass in the jejunum that was suggestive of a gastrointestinal stromal tumour. An ulceroinfiltrative lesion measuring 6.5 x 4 x 2cm was identified. Microscopy revealed typical features of MMSP with numerous osteoclasts-like giant cells. The diverse histomorphology and immunohistochemical characteristics of this case involving a rare tumour at a rare site is presented.
authors.affiliation: Department of Pathology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Saumyaranjan
authors.initials: S
authors.lastname: Mallick
authors.affiliation: Department of Pathology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Lavleen
authors.initials: L
authors.lastname: Singh
authors.affiliation: Department of Surgery, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Kartik
authors.initials: K
authors.lastname: Rajan
authors.affiliation: Department of Pathology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Meher Chand
authors.initials: MC
authors.lastname: Sharma
authors.affiliation: Department of Surgery, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Vk
authors.initials: V
authors.lastname: Bansl
authors.affiliation: Department of Pathology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Amit K
authors.initials: AK
authors.lastname: Dinda
keywords: Malignant melanoma of soft parts; jejunum; osteoclastic giant cells