Stručni rad
Dermoscopic Features of Subcorneal Hematoma on the Palms and Soles: Differences from Acral Melanoma
Sang-Hyeon Won
Kyung-Nam Bae
; Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
Kihyuk Shin
; Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
Hoon-Soo Kim
; Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
Hyun-Chang Ko
; Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
Byung-Soo Kim
; Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
Moon-Bum Kim
; Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
Sažetak
Background: The diagnosis of subcorneal hematoma (SH) can be challenging be-
cause the clinical presentation of SH can resemble melanocytic lesions. Few studies
have examined the characteristic dermoscopic features of SH, but a more detailed
large-scale study is needed to overcome the diagnostic challenge of differentiating
it from acral melanoma.
Objectives: To describe the dermoscopic features of SH.
Methods: We evaluated the clinical and dermoscopic features of 50 SH lesions from
43 patients at the Pusan National University Hospitals (Busan and Yangsan).
Results: In the color analysis, 86% of cases showed the bruise color sign; 7 cases
had a single color (red to purple: 2; black: 1; brown: 4). Typical dermoscopic features
of SH, acral nevi, and acral melanoma-associated patterns were observed in 60%,
0%, and 72% of lesions, respectively. Hematoma-associated patterns were homog-
enously red-to-black with or without satellite globules (32%) and pebbles on the
ridges (28%). Acral melanoma-associated patterns showed a parallel ridge pattern
(PRP) (52%), irregular dots and globules (50%), polychromia (34%), asymmetry
(24%), irregular blotches (10%), and ulcers (10%). No case showed blue-white veils,
regression structures, atypical vascular patterns, or irregular fibrillar patterns. The
bruise color sign was positive in most cases, with acral melanoma-associated pat-
terns (88.9%).
Conclusions: This study revealed the positive (bruise color sign, distinct PRP, and
polychromia) and negative (blue-white veil, regression structures, atypical vascular
pattern, and irregular fibrillar pattern) dermoscopic features of SH. Cases that are
ambiguous between SH and acral melanoma can be distinguished based on these
features.
Ključne riječi
dermoscopy; subcorneal hematoma; acral melanoma
Hrčak ID:
316453
URI
Datum izdavanja:
15.12.2023.
Posjeta: 0 *