Malignant triton tumours (MTTs) are a rare subtype of malignant peripheral nerve sheath tumour (MPNST) showing rhabdomyoblastic differentiation, which have no treatment consensus and a poor prognosis.This case report presents case of a 71yrs/ male with swelling in Right Hand over one month. Patient had same swelling 2yrs back which was diagnosed as Peripheral Nerve Sheath Tumour on histopathology following which he underwent surgery followed by radiotherapy. Swelling reappeared at same site after 3 months. FNAC of swelling shows large spindle cells having elongated buckled nuclei, pointed end,with varying nucleus size and coarse nuclear chromatin. Few cells are showing Rabdomyoblastic differentiation.
Abstract:Urachal malignancy is a rare and represents less than one percent of bladder neoplasms. Urachal mucinous neoplasms are still rare and include both villous adenomas and invasive adenoma carcinomas and they have insidious course and variable clinical presentation. We present a case report of 58 year old male who presented with lower abdominal mass since 6-8 months with no lower urinary tract symptoms, significant history of loss of weight and appetite. On examination the infra-umbilical midline mobile mass of 10×10 cms was palpable. CT showed lobulated cystic mass with internal septations and calcifications superior to bladder with indentation and without any local or distant metastasis. Mass was excised in toto with partial/ segmental cystectomy. Histology revealed mucinous cystadenoma of undetermined malignant potential, rarest histological variety and difficult to diagnose on basis of mucin histochemistry and immunohistology. Two-year follow-up did not show any local tumor recurrence.
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