Clinical and Dermoscopic Features of an Extradigital Glomus Tumor of the Back

Lahouel, Maha; Lahouel, Ines; Soua, Y.; Hamouda, M.; Njima, Manel; Youssef, M.

doi:10.5826/dpc.1004a77

Cited by 5 publications

(9 citation statements)

References 2 publications

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“…A consistent feature of dermoscopy of extra digital glomus tumor includes structureless, homogeneous, patternless lesions, which we also observed. Other features like a central purple area with a peripheral whitish homogeneous area; yellow-to-white background; and multiple telangiectasias have been described [ 18 , 19 ]. The consistent dermoscopic feature in our three subungual glomus tumors was an ill-defined pink structureless area (Figures 4C - 4D ].…”

Section: Discussionmentioning

confidence: 99%

Dermoscopic Analysis of Vascular Malformations and Tumors Based Upon Dominant Vascular Dermoscopic Features: A Retrospective Analysis From a Tertiary Care Center of East India

Viswan¹,

Behera²,

Sethy³

et al. 2022

Cureus

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Section: Discussionmentioning

confidence: 99%

Dermoscopic Analysis of Vascular Malformations and Tumors Based Upon Dominant Vascular Dermoscopic Features: A Retrospective Analysis From a Tertiary Care Center of East India

Viswan¹,

Behera²,

Sethy³

et al. 2022

Cureus

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“…GTs typically develop between the 3rd and the 5th decade of life [ 9 ]. Due to the higher density in glomus bodies, the subungual area of the digits, is the most common anatomical area of GT development [ 10 ]. Extradigital GTs, though, are quite uncommon, consisting only a 26.7% rate of all new diagnoses [ 10 ].…”

Section: Discussionmentioning

confidence: 99%

“…Due to the higher density in glomus bodies, the subungual area of the digits, is the most common anatomical area of GT development [ 10 ]. Extradigital GTs, though, are quite uncommon, consisting only a 26.7% rate of all new diagnoses [ 10 ]. Regarding gender allocation, subungual tumors are associated with a 2:1 female predominance, while extradigital GTs are more frequently diagnosed in male patients [ 10 ].…”

Section: Discussionmentioning

confidence: 99%

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Suprascapular glomus tumor: an unusual cause of chronic shoulder pain

Floros

Perivoliotis

Samara

et al. 2021

Case Reports in Plastic Surgery and Hand Surgery

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“…A P value of <0.05 was considered statistically significant. All analyses were performed using IBM SPSS version 25…”

Section: Methodsmentioning

confidence: 99%

Dermoscopy of glomus tumour: a cross‐sectional study of 86 cases

Álvarez‐Salafranca

Bañuls

Thomas

et al. 2022

Acad Dermatol Venereol

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Background Glomus tumours (GTs) are benign cutaneous neoplasms derived from the neuromyoarterial apparatus with a strong predilection for acral sites, especially the subungual space. Current data regarding dermoscopy of these lesions are very limited. Objectives To analyse the dermoscopic structures and patterns seen in a large series of subungual (SUGTs) and extraungual glomus tumours (EUGTs) and to determine their diagnostic significance. Methods Clinical and dermoscopic images of 86 histopathologically proven cases of GTs (47 SUGTs and 39 EUGTs) collected from 9 hospitals in Spain, France, Italy, and Brazil were evaluated for the presence of dermoscopic structures and patterns. Similarly, 189 and 185 dermoscopic images of other ungual tumours and other extraungual non‐pigmented tumours, respectively, were evaluated for the same structures and patterns. Finally, we evaluate diagnostic testing accuracy calculating sensitivity (S), specificity (Sp), and positive and negative predictive values of the different patterns for the diagnosis of GT. Results Regarding SUGTs, four patterns were built from the combination of different structures. The pattern composed of a structureless purplish/red subungual spot with or without vessels reached the highest S (S1, 78.8%). The combination of a structureless purplish/red subungual spot and longitudinal erythronychia (LE) (S2) is highly specific (96.3%). Patterns S3 (proximal purplish/red subungual spot, LE, and distal notch) and S4 (bed subungual spot and onycholysis) are the most specific and exclusive of matrix and bed tumours, respectively. The most consistent pattern in EUGTs is composed of a structureless purplish‐white to reddish‐white homogeneous area and linear unfocused vessels (E) (S: 61.5%, Sp: 95.7%). EUGTs did not show lacunae, unlike other vascular tumours. Conclusions Dermoscopy is helpful in improving the diagnostic accuracy of GTs, not only in SUGTs but also when these lesions arise out of the ungual apparatus.

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Clinical and Dermoscopic Features of an Extradigital Glomus Tumor of the Back

Cited by 5 publications

References 2 publications

Dermoscopic Analysis of Vascular Malformations and Tumors Based Upon Dominant Vascular Dermoscopic Features: A Retrospective Analysis From a Tertiary Care Center of East India

Dermoscopic Analysis of Vascular Malformations and Tumors Based Upon Dominant Vascular Dermoscopic Features: A Retrospective Analysis From a Tertiary Care Center of East India

Suprascapular glomus tumor: an unusual cause of chronic shoulder pain

Dermoscopy of glomus tumour: a cross‐sectional study of 86 cases

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