Malignant triton tumor in a patient with neurofibromatosis type 1

Positive psoas sign in presentation of retroperitoneal malignant triton tumour

This article describes a case of a rare malignant neoplasm presenting to the emergency department with common symptomatology and its subsequent identification using a simple physical examination technique. Discussion includes a description of this rare soft tissue sarcoma and a consideration of the value of the psoas sign as a part of the routine abdominal exam to detect intra-abdominal and retroperitoneal pathology. In conclusion, this article acts as a reminder to all clinicians that uncommon and significant pathology may present to the emergency department masquerading as a common, seemingly benign, complaint, but can be clinically identified using simple techniques available to all and rapidly investigated using appropriate special investigations.

[Malignant Triton tumor of the nose--case report]

Malignant Triton tumor (MTT) is classified as a variant of a malignant peripherial nerve sheath tumor with a focal rhabdomyosarcomatous differentiation. Nearly one third of described MTTs were located at the head and neck region. In following paper we described a case of MTT of the external nose in a 24 year old man. The tumor was totally exised surgically with the broad margins. Histopathological diagnosis of the tumor was made on the surgical specimen, based on immunohistochemical analysis. Radiation therapy as the next step of treatment of choice was performed in presented case.