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1.
Journal of Korean Neurosurgical Society ; : 146-148, 2014.
Article in English | WPRIM | ID: wpr-57668

ABSTRACT

Benign triton tumor (BTT) or neuromuscular hamartoma is an uncommon tumor composed of mature neural and well-differentiated striated muscular elements. Its development is exceptionally rare in the adult and head region. This report describes a case of adulthood BTT that occurred in the orbit. The patient was a 53-year-old woman who presented with right periorbital swelling and pain in eyeball over 2 months. Magnetic resonance imaging revealed a well-enhancing mass surrounding optic nerve and ocular muscles in the right retrobulbar area. The tumor was subtotally removed via transcranial approach. Its pathological diagnosis was confirmed to be a neuromuscular hamartoma. She developed diplopia postoperatively. Adulthood BTT should be considered in the differential diagnosis of head and neck tumors. It is also important to make adequate therapeutic strategy to avoid postoperative neural dysfunction.


Subject(s)
Adult , Female , Humans , Middle Aged , Diagnosis , Diagnosis, Differential , Diplopia , Hamartoma , Head , Magnetic Resonance Imaging , Muscles , Neck , Neptune , Optic Nerve , Orbit
2.
Korean Journal of Pathology ; : 62-64, 1999.
Article in Korean | WPRIM | ID: wpr-88984

ABSTRACT

Subcutaneous form of neuromuscular hamartoma is extremely rare and histologically different from the conventional neuromuscular hamartoma of the peripheral nerve or benign Triton tumor by an indistinct nodular growth with ill-defined margin and marked collagen interposition. It is usually not associated with a major nerve. We report a case of subcutaneous neuromuscular hamartoma developed in the forehead of 24-year-old man. The tumor showed proliferation of dense, hyalinized fibrous tissue, in which single or group of mature skeletal muscle fibers and nerve fibers were haphazardly intermixed. Recognition of abnormally arranged muscle and nerve fibers is important not to miss this lesion.


Subject(s)
Humans , Young Adult , Collagen , Forehead , Hamartoma , Hyalin , Muscle Fibers, Skeletal , Neptune , Nerve Fibers , Peripheral Nerves , Skin
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