Revista ABCd (São Paulo). 27 Jul, 2016

GASTROINTESTINAL SCHWANNOMA: CASE REPORT

Rafael Dienstmann Dutra VILA
Marlise Mello Cerato MICHAELSEN
Karine Sabrina BONAMIGO
Nilo Luiz CERATO
Valério Celso Madruga de GARCIA
Patrícia da Silva PASSOS
Adriano Calcagnotto GARCIA
DOI: 10.1590/0102-6720201600030019

INTRODUCTION

Schwannoma is a benign, neurogenic, slow-growing neoplasia, originated from Schwann cells, which are responsible by the myeline sheath on the peripheral nerves. This type of tumor is found more frequently on the central and peripheral nervous system and rarely occurs on the gastrointestinal tract1,2,4,5,6,8,10. Along with leiomyoma, leiomyossarcoma, gastrointestinal stromal tumor (GIST) and others, it makes part of the mesenchymal gastrointestinal tumors group2,5,6,10.

CASE REPORT

Female, 74 years old, presented on the emergency room with a chief complaint of abdominal pain, nauseas, vomiting, prostration and dizziness with one week of evolution. She reported past history of diverticulitis and denied weight loss, hematoquezia or previous abdominal surgeries. During the physical examination, she complained of pain on deep upper abdominal palpation, although no abnormal mass could be detected. Proctologic examination and laboratory exams showed no abnormalities.

Abdominal ultrassonography showed a nodular solid heterogenic type image on the left flank, with 6.1x5.6x4.3 cm. Investigation with contrasted computed tomography detected an delimited intramural lesion on the transverse colon, without invasion of surrounding organs (Figure 1).


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