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Moten AS, Movva S, von Mehren M, Wu H, Esnaola NF, Reddy SS, Farma JM
Granular cell tumor experience at a comprehensive cancer center
J Surg Res (2018) 226:1-7.
BACKGROUND: Granular cell tumors (GCTs) are rare lesions occurring almost anywhere in the body. Multiple case reports have been published. However, there are very few large-scale studies regarding GCT. The aim of this study was to define characteristics, treatment patterns and outcomes of patients with GCT. METHODS: An institutional review board-approved retrospective chart review was performed. Descriptive statistics, chi-square analyses, and Kaplan-Meier survival estimates were produced. RESULTS: Fifty patients were treated for GCT at our institution between 1992 and 2015. The median age was 47 y; 62% of patients were female and 64% were whites. Median tumor size was 0.8 cm. Four percent of patients had malignant tumors, 10.0% had atypical tumors, and 86.0% had benign tumors. The most frequent location of tumors was the gastrointestinal tract (n = 30; 60%), followed by skin/subcutaneous tissues (n = 19; 38%), then respiratory tract (n = 1; 2%). Most patients underwent surgical excision or endoscopic removal of their tumors without prior biopsy. Three patients (6%) had multifocal tumors; they were more likely to experience recurrence than patients with unifocal tumors (33.3% versus 10.6%, respectively; P = 0.05). Six patients (12.0%) experienced recurrence, with a median time to recurrence of 13.5 mo. Overall cancer-specific 5-y survival was 98.0%. Overall recurrence-free 5-y survival was 86.4%. Patients with atypical tumors had a lower recurrence-free 5-y survival rate than those with benign tumors (75.0% versus 89.7%, respectively; P = 0.04). CONCLUSIONS: Patients with GCT fair well, particularly when tumors are benign. Patients with multifocal tumors are more likely to experience recurrence and should be closely monitored.
MeSH terms
Granular cell tumor
Publication Date: 2018-06-01.
Last updated on Wednesday, March 04, 2020