1
|
Demirdağ HG, Akay BN. Dermatoscopic profiling of inverted follicular keratosis in different skin phenotypes. Clin Exp Dermatol 2024; 49:984-990. [PMID: 38183679 DOI: 10.1093/ced/llae008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/18/2023] [Accepted: 12/28/2023] [Indexed: 01/08/2024]
Abstract
BACKGROUND Inverted follicular keratosis (IFK) is a rare benign tumour of the follicular infundibulum. Owing to its similarity to other benign and malignant cutaneous lesions, it poses a diagnostic challenge. There is limited information on the dermatoscopic characteristics of IFK and the majority of cases have been reported in patients with lighter skin types. OBJECTIVES To describe the prevalent dermatoscopic features of IFK, especially in patients with skin of colour. METHODS We retrospectively analysed 35 histopathologically verified cases of IFK from a single university hospital in Turkey. RESULTS With respect to the Fitzpatrick skin phototype, 2 (6%), 12 (34%), 16 (46%) and 5 (14%) patients had Fitzpatrick skin phototypes II, III, IV and V, respectively. Clinically, the majority of IFKs were hypopigmented or nonpigmented (83%). Pink-white structureless areas (54%), ulceration (54%), a central keratin mass (43%) and blood spots on keratin mass (43%) were the most frequent dermatoscopic findings. Pigmented structures were observed as blue-grey structureless areas in 12 lesions and as blue-grey clods in 5, primarily in Fitzpatrick phototype IV and V skin. The incidence of a pink, structureless area and blood spots on ulceration was found to be statistically significantly higher in individuals with fairer skin types, while a greater prevalence of blue-grey coloration was observed in those with skin of colour (P < 0.05). CONCLUSIONS Although our study found some distinguishing dermatoscopic findings in IFK, diagnosis is generally confirmed by histopathology, as the clinical appearance and dermatoscopic findings may not be sufficient to differentiate it from other tumours, especially squamous cell carcinoma or keratoacanthoma. The dermatoscopic characteristics of dark skin are comparable to those of pale skin; however, hyperpigmentation can be more noticeable in skin of colour.
Collapse
Affiliation(s)
| | - Bengü Nisa Akay
- Ankara University School of Medicine, Department of Dermatology, Ankara, Turkey
| |
Collapse
|
2
|
Chauhan P, Keshavamurthy V, Jindal R, Goyal P, Meena DK. Dermoscopic characterisation of angiolymphoid hyperplasia in skin of colour: A case series of six patients with review of literature. Indian J Dermatol Venereol Leprol 2024; 0:1-6. [PMID: 38841969 DOI: 10.25259/ijdvl_1044_2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 11/25/2023] [Indexed: 06/07/2024]
Affiliation(s)
- Payal Chauhan
- Associate Professor, Department of Dermatology, All India Institute of Medical Sciences, Jammu, J&K, India
| | - Vinay Keshavamurthy
- Department of Dermatology, Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh, Chandigarh, India
| | - Rashmi Jindal
- Department of Dermatology, Himalayan Institute of Medical Sciences, Dehradun, India
| | - Pratika Goyal
- Department of Dermatology, All India Institute of Medical Sciences (AIIMS), Bathinda, India
| | - Dilip Kumar Meena
- Department of Dermatology, Teerthanker Mahaveer Medical College, Teerthanker Mahaveer University Moradabad, Moradabad, India
| |
Collapse
|
3
|
Anne EN, Ogunbiyi AO, Kelati A, Sadek A, Traoré I, Mavura D. Dermoscopy Use in Africa: Determinants and Challenges. Dermatol Pract Concept 2024; 14:dpc.1402a98. [PMID: 38810048 PMCID: PMC11136078 DOI: 10.5826/dpc.1402a98] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2023] [Indexed: 05/31/2024] Open
Abstract
INTRODUCTION Dermoscopy has evolved over the years beyond distinguishing benign pigmented lesions from melanoma to diagnosing virtually all diseases in dermatology. Overwhelming evidence demonstrates its utility in improving diagnostic accuracy, reducing unnecessary biopsies and lesion monitoring. Dermoscopy is widely used in Western nations, hence most descriptions of lesions in literature are predominantly on Fitzpatrick skin types I-III. Current evidence shows that there are unique dermoscopic features in the dark skin as a result of pigment and pathological reactions. Nationwide surveys and reports have been conducted across several continents to highlight prevalence and factors influencing dermoscopy use with the hope of maximizing its apparent benefits. There are currently no such reports from Africa. OBJECTIVES To evaluate dermoscopy use and its determinants among dermatologists in Africa. METHODS A cross-sectional study. Online forms were e-mailed to individual practicing dermatologists and members of the African Society of Dermatologists and Venereologists. RESULTS There were 196 respondents from 24 African countries. Half of them used dermoscopy. Training, practice settings and location, provision of dermatoscopes by institutions and knowledge of criteria were notable significant determinants. Multiple training exposures, knowledge of criteria, availability of dermatoscopes, use of both hand-held and videodermatoscopes, average number of patients seen per day, and a positive outlook towards dermoscopy were significant determinants of frequency of use. Leading impediments were lack of training and inadequate dermatoscopes in practice. CONCLUSIONS Dermoscopy use in Africa is relatively low. Incorporating dermoscopy training into the curriculum with provision of dermatoscopes by training institutions will promote wider usage.
Collapse
Affiliation(s)
- Enechukwu Nkechi Anne
- Nnamdi Azikiwe University/Nnamdi Azikiwe University Teaching Hospital, Nnewi, Nigeria
| | - Adebola O Ogunbiyi
- Department of Medicine, College of Medicine, University of Ibadan, Nigeria
| | - Awatef Kelati
- Dermatology Department, University Hospital Cheikh Khalifa and the University Hospital Mohammed VI. Faculty of Medicine, Mohammed VI University of Health Sciences (UM6SS), Casablanca, Morocco
| | - Ahmed Sadek
- Cairo Hospital for Dermatology & Venereology (Al-Haud Al-Marsoud), Cairo, Egypt
| | - Ibrahima Traoré
- Gamal Abdel Nasser University, La Source University, Conakry, Guinea
| | - Daudi Mavura
- Kilimanjaro Christian Medical University College (KCMUCo), Moshi, Tanzania
- Regional Dermatology Training Centre (RDTC), Kilimanjaro Christian Medical Centre (KCMC) Hospital, Moshi, Tanzania
| |
Collapse
|
4
|
Fahmy LM, Karantza IM, Schreidah CM, Lapolla BA, Geskin LJ. Skin of color representation in dermoscopy studies distinguishing benign from malignant skin lesions: A scoping review. JAAD Int 2023; 13:179-180. [PMID: 37841634 PMCID: PMC10570117 DOI: 10.1016/j.jdin.2023.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023] Open
Affiliation(s)
- Lauren M. Fahmy
- Columbia University Vagelos College of Physicians and Surgeons, New York, New York
| | - Ioanna Maria Karantza
- Department of Dermatology, Columbia University Irving Medical Center, New York, New York
| | - Celine M. Schreidah
- Columbia University Vagelos College of Physicians and Surgeons, New York, New York
| | - Brigit A. Lapolla
- Department of Dermatology, Columbia University Irving Medical Center, New York, New York
| | - Larisa J. Geskin
- Department of Dermatology, Columbia University Irving Medical Center, New York, New York
| |
Collapse
|
5
|
Enechukwu NA, Behera B, Ding DD, Lallas A, Chauhan P, Khare S, Sławińska M, Akay BN, Ankad BS, Bhat YJ, Jha AK, Kaliyadan F, Kelati A, Neema S, Parmar NV, Stein J, Usatine RP, Vinay K, Ogunbiyi AO, Errichetti E. Dermoscopy of Cutaneous Neoplasms in Skin of Color - A Systematic review by the International Dermoscopy Society "Imaging in Skin of Color" Task Force. Dermatol Pract Concept 2023; 13:dpc.1304S1a308S. [PMID: 37874990 DOI: 10.5826/dpc.1304s1a308s] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/26/2023] [Indexed: 10/26/2023] Open
Abstract
Over the last few decades, dermoscopy has been showed to facilitate the non-invasive diagnosis of both benign and malignant skin tumors, yet literature data mainly comes from studies on light photo-types. However, there is growing evidence that skin neoplasms may benefit from dermoscopic assessment even for skin of color. This systematic literature review evaluated published data in dark-skinned patients (dermoscopic features, used setting, pathological correlation, and level of evidence of studies), also providing a standardized and homogeneous terminology for reported dermoscopic findings. A total of 20 articles describing 46 different tumors (four melanocytic neoplasms, eight keratinocytic tumors, 15 adnexal cutaneous neoplasms, seven vascular tumors, four connective tissue tumors, and eight cystic neoplasms/others) for a total of 1724 instances were included in the analysis. Most of them showed a level of evidence of V (12 single case reports and six case series), with only two studies featuring a level of evidence of IV (case-control analysis). Additionally, this review also underlined that some neoplasms and phototypes are underrepresented in published analyses as they included only small samples and mainly certain tones of "dark skin" spectrum (especially phototype IV). Therefore, further studies considering such limitations are required for a better characterization.
Collapse
Affiliation(s)
- Nkechi Anne Enechukwu
- Nnamdi Azikiwe University/Nnamdi Azikiwe Teaching Hospital Nnewi, Anambra State, Nigeria
| | - Biswanath Behera
- Department of Dermatology and Venereology, AIIMS, Bhubaneswar, India
| | - Delaney D Ding
- University of Florida College of Medicine, Gainesville, FL, USA
| | - Aimilios Lallas
- First Department of Dermatology, School of Medicine, Faculty of Health Sciences, Aristotle University, Thessaloniki, Greece
| | - Payal Chauhan
- Department of Dermatology, All India Institute of Medical Sciences (AIIMS), Bilaspur, Himachal Pradesh, India
| | - Soumil Khare
- Department of Dermatology, Venereology and Leprosy, AIIMS, Raipur, India
| | - Martyna Sławińska
- Department of Dermatology, Venereology and Allergology, Faculty of Medicine, Medical University of Gdańsk, Poland
| | - Bengu Nisa Akay
- Department of Dermatology, School of Medicine, Ankara University, Ankara, Turkey
| | - Balachandra S Ankad
- Department of Dermatology, Venereology and Leprosy, SN Medical College, Bagalkot, Karnataka, India
| | - Yasmeen J Bhat
- Department of Dermatology, Venereology and Leprology, Government Medical College, University of Kashmir, Srinagar, Jammu and Kashmir, India
| | - Abhijeet Kumar Jha
- Department of Dermatology & STD, Patna Medical College & Hospital, Patna, India
| | - Feroze Kaliyadan
- Department of Dermatology, Sree Narayana Institute of Medical Sciences, Ernakulum, India
| | - Awatef Kelati
- Dermatology Department, Cheikh Khalifa International University Hospital, Mohammed VI University of Health Sciences (UM6SS), Casablanca, Morocco
| | - Shekhar Neema
- Department of Dermatology, Venereology and Leprology, Armed Force Medical College, Pune, Maharashtra, India
| | - Nisha V Parmar
- Department of Dermatology, Rashid Hospital, Dubai Health Authority, Dubai, United Arab Emirates
| | - Jennifer Stein
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, USA
| | - Richard P Usatine
- Department of Dermatology and Cutaneous Surgery, Department of Family and Community Medicine, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Keshavamurthy Vinay
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | | | - Enzo Errichetti
- Institute of Dermatology, "Santa Maria della Misericordia" University Hospital, Udine, Italy
| |
Collapse
|
6
|
Errichetti E, Lallas A, Argenziano G. Dermoscopy in Skin of Color: The Journey So Far. Dermatol Pract Concept 2023; 13:dpc.1304S1a305S. [PMID: 37874989 PMCID: PMC10824323 DOI: 10.5826/dpc.1304s1a305s] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/19/2023] [Indexed: 10/26/2023] Open
Affiliation(s)
- Enzo Errichetti
- Institute of Dermatology, “Santa Maria della Misericordia” University Hospital, Udine, Italy
| | - Aimilios Lallas
- First Department of Dermatology, School of Medicine, Faculty of Health Sciences, Aristotle University, Thessaloniki, Greece
| | | |
Collapse
|
7
|
Karampinis E, Lallas A, Lazaridou E, Errichetti E, Apalla Z. Race-Specific and Skin of Color Dermatoscopic Characteristics of Skin Cancer: A Literature Review. Dermatol Pract Concept 2023; 13:dpc.1304S1a311S. [PMID: 37874992 PMCID: PMC10824324 DOI: 10.5826/dpc.1304s1a311s] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2023] [Indexed: 10/26/2023] Open
Abstract
INTRODUCTION Individuals with melanin-rich skin account for the majority of the world's population. However, literature data regarding dermatoscopic characteristics of skin cancer in skin of color (SoC) are scarce. The dermatoscopic characteristics of cutaneous tumors might differ among skin types due to heterogeneity in composition and pigmentation. OBJECTIVES To summarize literature data on the dermatoscopic findings of skin neoplasms, according to the skin color and race. METHODS The literature search was performed using PubMed database up to December 30, 2022 and was conducted with the use of terms referring to dermatoscopy, race (Caucasians, Hispanics, Asians, and Black/African) and skin cancer types (BCC, SCC, keratoacanthoma, Bowen's disease and melanoma). RESULTS In total, 30 race-specific records were included. 9 SoC records for BCCs (2 BCC studies in Hispanics, 1 BCC study in Black individuals and 6 BCC studies in Asians ), 9 SoC records for SCCs ( 1 SCC study in Hispanics, 1 SCC study in Black individuals and 7 SCCs in Asian population) and 8 SoC records for melanoma (2 melanoma studies in Hispanics, 1 melanoma study in Blacks and 5 melanoma studies in Asians) were compared with 4 records that involved only Caucasian population, according to their participant section as well as with studies on dermatoscopy characteristics without focusing on race origins and phototype of the patient. In Hispanics and in both fair and dark-skinned Asians, BCCs were more often pigmented or at least with pigmented structures on dermoscopy. Squamous cell carcinoma (SCC) and keratoacanthoma were the least studied in SoC patients. Bowen's disease in SoC patients can be pigmented in a higher frequency compared to Caucasians, with glomerular vessels and a squamous surface being the most common dermatoscopic findings. The most frequent pattern of melanomas in SoC individuals were the parallel ridge pattern in palmoplantar region. CONCLUSION Based on a review of studies including Caucasians, Hispanics, Asians and Blacks /Africans, SoC patients present with more frequent and unique dermatoscopy features of skin cancers.
Collapse
Affiliation(s)
- Emmanouil Karampinis
- Second Dermatology Department, School of Health Sciences, Aristotle University of Thessaloniki, Greece
| | - Aimilios Lallas
- First Dermatology Department, School of Health Sciences, Aristotle University of Thessaloniki, Greece
| | - Elizabeth Lazaridou
- Second Dermatology Department, School of Health Sciences, Aristotle University of Thessaloniki, Greece
| | - Enzo Errichetti
- Institute of Dermatology, Santa Maria della Misericordia University Hospital, Udine, Italy
| | - Zoe Apalla
- Second Dermatology Department, School of Health Sciences, Aristotle University of Thessaloniki, Greece
| |
Collapse
|