
Kaliaperumal KarthikeyanSri Manakula Vinayagar Medical College and Hospital | SMVMCH · Department of Dermatology
Kaliaperumal Karthikeyan
MD
About
250
Publications
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Introduction
Kaliaperumal Karthikeyan currently works as HOD and Professor at the Department of Dermatology,Venereology & Leprosy, SRI MANAKULA VINAYAGAR MEDICAL COLLEGE AND HOSPITAL. He does research in Infectious Diseases, Pediatric dermatology,Allergology and clinical Dermatology. Their most recent publication is 'A cross-sectional study of sweat-induced dermatitis during a South Indian summer: a glimpse of sweat gland-mediated cutaneous inflammation'.
Additional affiliations
December 2004 - present
Education
June 1990 - May 2004
Publications
Publications (250)
Alopecia is usually an overlooked manifestation of syphilis commonly seen in secondary syphilis with a prevalence of 2.9%–7%. It is broadly classified into symptomatic and essential alopecia and the observed patterns include moth-eaten type, generalized thinning, and mixed pattern. Here, we report a 38-year-old male who presented with mixed pattern...
Actinomycosis is an uncommon chronic suppurative infection caused by a Gram-positive anerobic bacterium Actinomyces israelii or Actinomyces gerencseriae. Lingual actinomycosis is a rare form of actinomycosis with a prevalence of 3%. We report a case of a 16-year-old female, with an acute-onset painful ulcer with a yellowish-white slough over the le...
Pigmented basal cell carcinoma (pBCC) is an uncommon clinical and histopathological variant that is more frequent in darker skin types. The increased number of melanocytes and the subsequent melanin production are responsible for the increased pigmentation in this variant. Clinically, pBCC has a polychromatic nature. The most common clinical mimic...
Nodular scabies (NS) is a relatively common variant of classical scabies whose pathogenesis is unclear. It is clinically characterized by pruritic, firm nodules most commonly involving the genitalia followed by axilla and groin region. A clinical diagnosis of NS is often straightforward. NS may persist despite the administration of antiscabicidal d...
Objectives
Human immunodeficiency virus (HIV) infection is a significant global health concern, due to the emerging complexity in the management of infection. The emergence of novel therapeutic agents, such as ibalizumab, has provided a ray of hope for individuals living with HIV. This systematic review provides a comprehensive analysis of the effi...
Diseases under the non-Langerhans cell histiocytosis (LCH) group often share clinical and histological similarities, making proper delineation highly challenging. A two-year-old female child presented with multiple, small raised asymptomatic lesions all over the body for one year. Cutaneous examination showed multiple brownish flat-topped and yello...
Chikungunya Fever (CKF), a neglected tropical disease caused by the Chikungunya virus, manifests with skin pigmentary changes in a significant portion of cases. A myriad of pigmentary alterations in cases of CKF have been documented in the literature. This review highlights the pathogenesis, clinical features, histopathology, diagnosis, and treatme...
Aluminium, the third most abundant element in the earth’s crust, was long considered virtually innocuous to humans but has gained importance in the recent past. Aluminium is ubiquitous in the environment, with various sources of exposure like cosmetics, the food industry, occupational industries, the medical field, transport and electronics. Alumin...
Background
Dermatosis neglecta (DN) is an acquired skin condition that occurs due to unconscious neglect of self-cleaning in individuals with some underlying risk factor.
Aims and Objectives
The purpose of this study was to summarize the demographic, clinical characteristics, and treatment outcomes of patients with DN in a tertiary care center.
M...
Interleukin‐36 (IL‐36) cytokines contribute to the pathogenesis of various inflammatory skin conditions and are potential therapeutic targets. Spesolimab is a monoclonal antibody that inhibits IL‐36 signaling recently approved by the Food and Drug Administration for the management of generalized pustular psoriasis flares in adults. Clinical trials...
Kindler syndrome is a rare genodermatosis characterized by mechanical skin fragility, acral blisters, photosensitivity, poikiloderma, skin atrophy and mucosal inflammation.¹ It is considered a subtype of inherited epidermolysis bullosa. The disease is inherited in an autosomal recessive pattern with the parents of the affected individuals being obl...
Reticulate pigmentary dyschromatoses primarily include dyschromatosis universalis hereditaria (DUH), dyschromatosis symmetrica hereditaria (DSH) (Reticulate acropigmentation of Dohi), and unilateral dermatomal pigmentary dermatosis, which differ in their patterns of distribution. The disease was initially described by Ichikawa and Hiraga in Germany...
Hair dyeing is a popular practice dating back to ancient Egyptian times. Initially, hair dye use was restricted to concealing grey and white hairs of the elderly population. However, in recent times, its use is common among the younger generation as a fashion statement.
Hair dye contact dermatitis is a common dermatological condition encountered by...
https://doi.org/10.1093/ced/llad222
Dyschromatosis universalis hereditaria (DUH) is an inherited pigmentary disorder, first described by Ichikawa and Higara as generalized dyschromatosis sparing the acral areas.¹ Recently, the ABCB6 gene, a member of the ATP-binding cassette transporter superfamily, has been identified as a cause of DUH.² This diso...
Background:
Hair dye is a concoction of various ingredients that can result in allergic contact dermatitis (ACD) which is a common problem encountered by dermatologists.
Objectives:
To find out the presence of potent contact sensitizers in commercially available hair dyes in Puducherry, a union territory in South India, and to compare the findin...
Pitted keratolysis (PK) is a common superficial bacterial skin infection confined to the stratum corneum. It is clinically characterized by multifocal, discrete, pits or crater-like punched-out lesions, commonly over the pressure-bearing aspects of the foot. It is asymptomatic and associated with malodor. The surface is often moist and macerated. T...
Introduction:
Mind mapping is a visual mapping technique used in a few disciplines of medical education to represent ideas linked to and arranged around a central core idea or topic through different subtopics/categories. We aimed to utilize this technique to teach the undergraduate medical students the morphology of skin lesions and assess its ef...
An asymptomatic scaly plaque over the glans penis in an elderly male CASE HISTORY A 68-year-old man complained of a two-year history of an asymptomatic, slow-growing lesion over his glans penis. The physical examination revealed a single, well-defined, non-tender, dry, rough, hyperkeratotic, mica-like scaly plaque measuring 3.8 There were no other...
Objectives
(1) The objectives of the study are as follows: To study serum zinc levels in patients with alopecia areata. (2) To study the correlation between serum zinc levels and severity of alopecia areata.
Material and Methods
A hospital-based and cross-sectional study was conducted in our out-patient Department of Dermatology and STD. All new c...
Miliaria crystallina (MC) is an uncommon form of sweat retention syndrome that chiefly affects neonates. It is more common in hot and humid conditions, such as in tropical regions. It commonly presents as clusters of dewdrop-like vesicles on a non-erythematous base that heals with furfuraceous scaling. A clinical diagnosis is often sufficient. The...
Turmeric is the dried rhizome of Curcuma longa Linn which is extensively used in Indian culture. Curcumin is its most active pharmaceutical component. Turmeric use is very closely related with the socio-religious life of the population. Topical application of turmeric is a very common practice in the daily lives and auspicious occasions in South In...
Paederus eye or Nairobi eye
Linear focal elastosis (LFE) is an uncommon, benign, acquired elastotic condition with uncertain pathogenesis. It is characterized clinically by asymptomatic, multiple, yellowish, elevated, irregularly indurated, striae-like lines or bands distributed horizontally across the lower and middle part of the posterior trunk. The histopathological hallma...
Chocolate is the most sought-after delicacy worldwide. Cocoa has been incorporated in various forms, into both foods and cosmetics. Cocoa has not only been used as gourmet food but has also served as medicine for ages. Chocolates are always in vogue and remain a testament to the cocoa bean, but the benefits attained from commercial chocolates remai...
Discoid lupus erythematosus (DLE) is the most common form of chronic cutaneous lupus erythematosus commonly seen in photoexposed regions. Eyelid involvement in DLE is relatively rare. We present three cases of DLE with eyelid involvement. It closely mimics many clinical conditions; hence, diagnosis is often late. When left untreated, it can lead to...
Papulonecrotic tuberculid (PNT) is an uncommon form of id eruption that occur in association with tuberculosis infections, in patients with a high degree of immunity and allergic sensitivity to mycobacterial organisms. It commonly presents as recurrent crops of papulonecrotic lesions which crust or ulcerate and heals with atrophic varioliform scars...
Potassium permanganate (KMnO4) is an over the‐counter available astringent with oxidising and antiseptic property used by the dermatologists since ages. It is often used as compresses and baths for various exudative dermatoses. Its advantages include lower cost, good healing rate and reduced allergenic potential. Chemical burns and associated stain...
Background:
Acquired fibrokeratoma (AFK) is an uncommon, sporadic, benign, acquired, slow-growing dermo-epidermal tumour.
Aims and objectives:
The purpose of this study was to summarize the demographic, clinical characteristics and treatment outcomes of patients with AFK in a tertiary care centre in South India.
Methods:
We evaluated the recor...
Acne, a common cutaneous disorder, is estimated to affect a significant proportion of the population at some point in their lifetime. It is one of the most common presentations reported in dermatological consultations in India. Treatment options for acne include topical, oral and procedural therapies. Patients with mild acne can be treated with top...
Bowen's disease (BD) is an in-situ squamous cell carcinoma of epidermis. The etiology of BD is multifactorial with high incidence among Caucasians. BD is common in photo-exposed areas of skin, but other sites can also be involved. Lesions are usually solitary. The morphology of BD differs based on age of the lesion, site of origin, and the degree o...
Dermatosis neglecta (DN) is often an under diagnosed and reported dermatological entity which occurs due to unconscious neglect of self‐cleaning in individuals with some underlying physical or mental pathology. It leads to accumulation of scales, dirt, sweat and sebum compacted together in the skin. Owing to its asymptomatic nature, diverse backgro...
Background:
Pediculosis is a common ectoparasitic infestation in children. There are different treatment modalities that have been used in the treatment of pediculosis capitis from time immemorial, each with their own shortcomings. Increasing emergence of resistance to permethrin has led to the lookout for newer alternatives.
Aims and objectives:...
A 69-year-old man presented with a 5-year history of diffuse infiltration of skin and progressive sensory loss over his bilateral hands. His face had a few papular-nodular lesions over forehead and cheeks, attenuated skin folds, with loss of eyelashes and eyebrows (figure 1). Peripheral nerve examination showed thickened bilateral ulnar and posteri...
Background:
The skin lightening industry has seen exponential growth in India. Consumers often present to the dermatologist with adverse cutaneous reactions to these 'fairness' (skin lightening) creams. The composition of these creams has not received sufficient attention.
Objective:
To identify fragrance, sunscreens, botanicals and potential al...
The introduction of salt as a therapeutic agent in dermatological disorders has been in use since ancient times. This ubiquitous agent is the most underrated substance after the advent of modern medicine. Though a commonly used agent in both traditional and modern medicine, it is important to understand its relationship to the skin to further enhan...
Polymorphous light eruption (PMLE) is the most common, idiopathic, acquired photodermatosis, characterized by abnormal, recurrent, and delayed reaction to sunlight. Polymorphous light eruption is common worldwide but the morphology, distribution, and pigmentary changes are unique in Indian skin which is discussed in this review. The prevalence of P...