A Rare Case of Coexisting Pediculosis Capitis and Tinea Capitis in a Healthy Adult Female

2021 ◽  
pp. 1-3
Author(s):  
Ahmed H. Nouh ◽  
Mahmoud A. Rageh
Keyword(s):  
Adult Female ◽  
Lupus Erythematosus ◽  
Tinea Capitis ◽  
Healthy Adult ◽  
Head Louse ◽  
Cutaneous Lupus Erythematosus ◽  
Human Head ◽  
Pediculosis Capitis ◽  
Clinical Appearance ◽  
Lichen Planopilaris

Pediculosis capitis is a common condition caused by infestation with the human head louse, <i>Pediculus humanus capitis</i>, and primarily affects children in the age-group of 6–12 years. The most prominent symptom is intense scalp itching, yet moving lice or nonmoving nits may be seen on the scalp and hair. Tinea capitis, also known as scalp ringworm, is a superficial fungal infection caused by keratinophilic fungi termed dermatophytes. Tinea capitis is rare in adults, and its symptoms include hair loss, dry scaly areas, redness, and itching. We here report a case of a rare coexistence between pediculosis capitis and tinea capitis in an otherwise healthy adult female, motivating the search for a possible cause of this rare coexistence and alarming dermatologists to be aware of the modified clinical appearance of this coexistence which could be mistaken with other conditions such as cutaneous lupus erythematosus or lichen planopilaris.

scholarly journals Presence of the knockdown resistance (kdr) mutations in the head lice (Pediculus humanus capitis) collected from primary school children of Thailand

2020 ◽  
Vol 14 (12) ◽  
pp. e0008955
Author(s):  
Narisa Brownell ◽  
Sakone Sunantaraporn ◽  
Kobpat Phadungsaksawasdi ◽  
Nirin Seatamanoch ◽  
Switt Kongdachalert ◽  
...  
Keyword(s):  
Head Louse ◽  
Point Mutations ◽  
Human Head ◽  
Amino Acid Sequences ◽  
Primary School Children ◽  
Head Lice ◽  
Knockdown Resistance ◽  
Pediculosis Capitis ◽  
Α Subunit ◽  
Blood Sucking

Human head lice are blood-sucking insects causing an infestation in humans called pediculosis capitis. The infestation is more prevalent in the school-aged population. Scalp itching, a common presenting symptom, results in scratching and sleep disturbance. The condition can lead to social stigmatization which can lead to loss of self-esteem. Currently, the mainstay of treatment for pediculosis is chemical insecticides such as permethrin. The extended use of permethrin worldwide leads to growing pediculicide resistance. The aim of this study is to demonstrate the presence of the knockdown resistance (kdr) mutation in head lice populations from six different localities of Thailand. A total of 260 head lice samples in this study were collected from 15 provinces in the 6 regions of Thailand. Polymerase chain reaction (PCR) was used to amplify the α subunit of voltage-sensitive sodium channel (VSSC) gene, kdr mutation (C→T substitution). Restriction fragment length polymorphism (RFLP) patterns and sequencing were used to identify the kdr T917I mutation and demonstrated three genotypic forms including homozygous susceptible (SS), heterozygous genotype (RS), and homozygous resistant (RR). Of 260 samples from this study, 156 (60.00%) were SS, 58 (22.31%) were RS, and 46 (17.69%) were RR. The overall frequency of the kdr T917I mutation was 0.31. Genotypes frequencies determination using the exact test of Hardy-Weinberg equilibrium found that northern, central, northeastern, southern, and western region of Thailand differed from expectation. The five aforementioned localities had positive inbreeding coefficient value (Fis > 0) which indicated an excess of homozygotes. The nucleotide and amino acid sequences of RS and RR showed T917I and L920F point mutations. In conclusion, this is the first study detecting permethrin resistance among human head lice from Thailand. PCR-RFLP is an easy technique to demonstrate the kdr mutation in head louse. The data obtained from this study would increase awareness of increasing of the kdr mutation in head louse in Thailand.

scholarly journals Patchy Alopecia in a Patient with Rheumatoid Arthritis: A Practical Application of Trichoscopy

2021 ◽  
pp. 42-46
Author(s):  
Ahmad Vafaeian ◽  
Elham Taghizadeh ◽  
Maryam Daneshpazhooh ◽  
Hamidreza Mahmoudi
Keyword(s):  
Rheumatoid Arthritis ◽  
Lupus Erythematosus ◽  
Tinea Capitis ◽  
Skin Diseases ◽  
Cutaneous Lupus Erythematosus ◽  
Proper Treatment ◽  
Practical Application ◽  
History Of ◽  
Cutaneous Lupus

Trichoscopy is an efficient, convenient, and accurate diagnostic dermatological procedure which is widely used in the examination of patients with skin diseases. Herein, we report a 56-year-old woman with a long-term history of rheumatoid arthritis complaining of pruritic patchy alopecia on her scalp who was referred for biopsy to exclude cutaneous lupus erythematosus. Taking advantage of trichoscopy, we were able to quickly diagnose tinea capitis. Following administration of the proper treatment the disease resolved completely.

scholarly journals Atypical and Rare Forms of Cutaneous Lupus Erythematosus: The Importance of the Diagnosis for the Best Management of Patients

Dermatology ◽  
2021 ◽  
pp. 1-10
Author(s):  
Astrid Herzum ◽  
Giulia Gasparini ◽  
Emanuele Cozzani ◽  
Martina Burlando ◽  
Aurora Parodi
Keyword(s):  
General Practitioner ◽  
Autoimmune Disease ◽  
Lupus Erythematosus ◽  
Cutaneous Lupus Erythematosus ◽  
Cutaneous Manifestations ◽  
Skin Manifestation ◽  
Systemic Involvement ◽  
Best Management ◽  
Wide Range ◽  
Cutaneous Lupus

Lupus erythematosus (LE) is an autoimmune disease with a wide range of clinical and cutaneous manifestations. Along with the well-known typical cutaneous manifestations of LE, some cutaneous manifestations are rarer, but still characteristic, enabling the dermatologist and the general practitioner who know them to suspect cutaneous LE (CLE) and investigate a possible underlying systemic involvement. Indeed, not infrequently a skin manifestation is the first presentation of systemic LE (SLE), and &#x3e;75% of SLE patients show signs of skin disease during the course of the illness. Especially, SLE involvement occurs in cases of acute CLE, while it is uncommon in subacute CLE and rare in chronic CLE. This review aims to concentrate especially on atypical cutaneous manifestations of LE to enable the clinician to diagnose even the rarest forms of CLE.

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