Table 2.
Alternative Pathological Diagnoses, When Glomus Tumor Was Suspected Clinicallya.
| Count | Frequency | |
|---|---|---|
| Vascular tumors | ||
| • Angioma | 11 | 20.4% |
| • Venous malformation | 3 | 5.6% |
| Total: | 14 | 25.9% |
| Other skin tumors | ||
| • Cysts | 6 | 11.1% |
| • Sweat gland neoplasms | 4 | 7.4% |
| • Salivary duct carcinoma | 1 | 1.9% |
| • Nevus | 1 | 1.9% |
| • Lentigo | 1 | 1.9% |
| • Cellular fibrous histiocytoma | 1 | 1.9% |
| Total: | 14 | 25.9% |
| Other tumors | ||
| • Epithelioid neoplasm NOS | 2 | 3.7% |
| • Mastocytosis | 1 | 1.9% |
| • Round cell neoplasm NOS | 1 | 1.9% |
| Total: | 4 | 7.4% |
| Other soft tissue tumors | ||
| • Fibroma/fibromatosis | 6 | 11.1% |
| • Leiomyoma | 2 | 3.7% |
| • Lipoma | 1 | 1.9% |
| • Histiocytic sarcoma | 1 | 1.9% |
| • Neuroma | 1 | 1.9% |
| Total: | 11 | 20.4% |
| Nontumors | 2 | 3.7% |
| • Dermal fibrosis | 3 | 5.6% |
| • Keratoma | 2 | 3.7% |
| • Hemorrhage | 1 | 1.9% |
| • Pemphigus | 1 | 1.9% |
| • Dermatitis | 1 | 1.9% |
| • Perniosis | 1 | 1.9% |
| • Fat necrosis | 1 | 1.9% |
| • Porokeratotic proliferation | 1 | 1.9% |
| Total: | 11 | 20.4% |
a
In 54 patient cases, the clinician/surgeon suspected a diagnosis of glomus tumor but the final pathological diagnosis differed. Diagnoses are split into categories, including tumors of vasculature (24.9%), soft tissue (20.4%), skin (25.9%), other (7.4%), and nontumors (20.4%).