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. Author manuscript; available in PMC: 2024 Apr 4.
Published in final edited form as: Am J Dermatopathol. 2023 May 2;45(7):454–462. doi: 10.1097/DAD.0000000000002436

TABLE 2.

Summary of Clinicopathologic Characteristics

Clinical Features

Age* (yr), mean ± SD 55.6 ± 23.9
Female sex, n (%) 20 (38.5)
Lesion location, n (%)
 Trunk 19 (33.3)
 Visceral metastases 6 (10.5)
 Small bowel 4
 Lung 2
 Head/neck 15 (26.3)
 Upper extremity 9 (15.8)
 Lower extremity 8 (14.0)
Histopathologic features
Primary lesion size (cm), mean ± SD (range) 1.4 ± 1.3 (0.3–6.5)
Lesion classification
 Benign nevus, n (%) 8 (14.0)
 Borderline lesion, n (%) 16 (28.1)
 Atypical Spitz tumor 8
 Atypical nevus 6
 Combined epithelioid melanocytoma associated with a nevus 1
 Conventional nevus combined with an atypical Spitz nevus 1
 Primary melanoma, n (%) 22 (38.6)
 Not otherwise specified 6
 Nodular 5
 Superficial spreading 4
 Nevoid 2
 Spitzoid melanoma in situ 1
 Superficial spreading and spindle cell 1
 Dedifferentiated and spindled 1
 Mixed spindled and desmoplastic 1
 Melanoma in situ 1
 Metastatic melanoma, n (%) 11 (19.3)
 Breslow depth§ (mm), mean ± SD (range) 4.6 ± 4.2 (0.8–21.0)
*

At the time of biopsy.

n = 52 patients.

n = 57 lesions.

§

Of confirmed primary melanomas (n = 22).