The Association of Frontal Alopecia with a History of Facial and Scalp Surgical Procedures
Conclusions: A significant association exists between frontal alopecia clinically consistent with FFA and a history of facial surgery, the nature of which is unclear. The role of sunscreen use and frontal alopecia development in this setting needs to be better elucidated.Skin Appendage Disord (Source: Skin Appendage Disorders)
Source: Skin Appendage Disorders - September 14, 2021 Category: Dermatology Source Type: research
Anagen Effluvium after Neurointerventional Radiation: Trichoscopy as a Diagnostic Ally
Minimally invasive procedures for vascular brain lesions are being performed more frequently. Radiation exposure caused by endovascular embolization of cerebral aneurysms may give rise to nonscarring scalp alopecia located in the treated area. Clinical and trichoscopic features of this type of alopecia are similar to alopecia areata (AA). Herein, we performed a comprehensive review to describe the clinical and trichoscopic characteristics of radiation-induced anagen effluvium. Predominant trichoscopic findings include black dots, yellow dots, short vellus hairs, and absence of exclamation marks hairs. It is important to co...
Source: Skin Appendage Disorders - September 14, 2021 Category: Dermatology Source Type: research
Use of Botulinum Toxin for Androgenic Alopecia: A Systematic Review
In this systematic review, we summarize the efficacy and safety of intradermal and intramuscular botulinum toxin injections for androgenic alopecia (AGA). Using PubMed, we conducted a literature search up to February 2021 using the following keyword combinations: “botulinum toxin” or “botox” and “androgenetic alopecia,” “hair loss,” or “alopecia.” Five clinical studies met our inclusion criteria: 4 prospective cohorts and 1 randomized clinical trial (RCT). Study durations ranged from 24 to 60 weeks. No studies included control groups or c ompared botulinum toxin injections against approved treatments. A...
Source: Skin Appendage Disorders - September 8, 2021 Category: Dermatology Source Type: research
Unusual Presentations of Eccrine Porocarcinomas
Eccrine porocarcinomas (EPCs) are rare tumours, albeit the most common malignant adnexal tumours of the skin. They can present with very heterogeneous clinical and dermoscopic features, rendering diagnosis limited to histopathological examination alone. We share 2 cases of EPCs, one of which arose in a patient with a prior diagnosis of cutaneous squamous cell carcinoma (SCC) and another whose EPC was likely a malignant transformation of an existing poroma. An occurrence of porocarcinoma after the diagnosis of SCC may suggest the possibility of unknown risk factors for both. Positivity to androgen, oestrogen, and epidermal ...
Source: Skin Appendage Disorders - September 8, 2021 Category: Dermatology Source Type: research
Integrated Cadaveric Nail Surgery Course Improves Self-Assessed Knowledge and Competency of Dermatologists
Conclusion: An integrative nail surgery course model seems beneficial and encouraging for dermatologists. Organizing this type of nail surgery course, especially in medical schools using fresh-frozen cadavers, may significantly improve dermatologists ’ knowledge and skills.Skin Appendage Disord (Source: Skin Appendage Disorders)
Source: Skin Appendage Disorders - September 3, 2021 Category: Dermatology Source Type: research
A Single Nail Dystrophy as a Unique Manifestation of Sarcoidosis: A Case Report
We report a case of onychodystrophy with osseous involvement of only one finger as unique manifestation of sarcoidosis, which is very rare.Skin Appendage Disord (Source: Skin Appendage Disorders)
Source: Skin Appendage Disorders - September 2, 2021 Category: Dermatology Source Type: research
Usefulness of Trichoscopy over Hair Light Microscopy in Menkes Disease
We report a case of a Hispanic male infant with MD in whom we show that trichoscopy is superior to hair light microscopy in revealing pili torti.Skin Appendage Disord (Source: Skin Appendage Disorders)
Source: Skin Appendage Disorders - September 2, 2021 Category: Dermatology Source Type: research
A Case of Extensive Mass on the Scalp with Alopecia
Skin Appendage Disord (Source: Skin Appendage Disorders)
Source: Skin Appendage Disorders - September 2, 2021 Category: Dermatology Source Type: research
Subungual Exostosis: A Case Series of 48 Patients
Conclusion: Large series of subungual exostosis are reported by orthopedic surgeons. However, our outpatient consultation for nail disorders allowed the diagnosis and appropriate management of subungual exostosis.Skin Appendage Disord (Source: Skin Appendage Disorders)
Source: Skin Appendage Disorders - September 1, 2021 Category: Dermatology Source Type: research
Variation of Hair Follicle Counts among Different Scalp Areas: A Quantitative Histopathological Study
Conclusions: The present study revealed the diversity of the hair index among different scalp areas and suggested that normal hair count values should be separately standardized on each scalp region. Our findings may provide useful reference values for the histopathological evaluation of hair disorders in Asians.Skin Appendage Disord (Source: Skin Appendage Disorders)
Source: Skin Appendage Disorders - September 1, 2021 Category: Dermatology Source Type: research
Trichotillomania: What Do We Know So Far?
Trichotillomania is defined as an obsessive-compulsive or related disorder in which patients recurrently pull out hair from any region of their body. The disease affects mainly female patients, who often deny the habit, and it usually presents with a bizarre pattern nonscarring patchy alopecia with short hair and a negative pull test. Trichoscopy can reveal the abnormalities resulting from the stretching and fracture of hair shafts, and biopsy can be necessary if the patient or parents have difficulties in accepting the self-inflicted nature of a trichotillomania diagnosis. Trichotillomania requires a comprehensive treatme...
Source: Skin Appendage Disorders - September 1, 2021 Category: Dermatology Source Type: research
Congenital Malalignment of the Great Toenail, the Disappearing Nail Bed, and Distal Phalanx Deviation: A Review
Conclusions and Relevance: DNB was associated with all forms of pure CMGT. Moreover, a variant of malalignment of the distal phalanx was noted in 8 photographs. This has potential implications for further studies and treatment to correct secondary complications.Skin Appendage Disord (Source: Skin Appendage Disorders)
Source: Skin Appendage Disorders - September 1, 2021 Category: Dermatology Source Type: research
Disfiguring Hidradenitis Suppurativa of the Face
Discussion: Massive face scarring due to HS is an infrequent event and represents a further burden for patients affected by HS and a therapeutic challenge for clinicians due to the lack of codified guidelines. Novel therapies with lasers and combination therapies are emerging and may be beneficial for hypertrophic scarring in HS.Skin Appendage Disord (Source: Skin Appendage Disorders)
Source: Skin Appendage Disorders - August 26, 2021 Category: Dermatology Source Type: research
Two Cases of Dyskeratosis Congenita with Clinically Distinct Presentations, Seen in National University Hospital, Singapore
We report 2 cases of DKC from National University Hospital, Singapore, whose clinical presentations differed greatly from each other. Dermatologists should hold a high index of suspicion for DKC in young patients who present without the classical triad of features, as early dermatological care can be instituted through reinforcement of rigorous sun protection and regular surveillance for skin cancers. Early diagnosis also offers physicians the time to organise haematopoietic stem cell transplantation if necessary, as bone marrow failure is often inevitable. As a multisystemic disease with high morbidity and mortality parti...
Source: Skin Appendage Disorders - August 23, 2021 Category: Dermatology Source Type: research
A Case of Ill-Defined Erythematous Plaques Scattered on the Scalp
Skin Appendage Disord (Source: Skin Appendage Disorders)
Source: Skin Appendage Disorders - August 19, 2021 Category: Dermatology Source Type: research
