CONTEXT

Accurate diagnosis of onychomycosis is important since misdiagnosis can lead to inappropriate therapy, delayed diagnosis of other nail conditions, and antifungal resistance. Dermoscopy is an emerging diagnostic tool, particularly valuable in the resource-poor settings.

The study aimed to evaluate the accuracy of dermoscopy as a point-of-care tool in diagnosing distal subungual onychomycosis (DSO) at a tertiary hospital.

An observational, prospective, and cross-sectional study was conducted among 22 clinically diagnosed DSO patients using convenience sampling at a tertiary hospital from November 2019 to September 2021.

Participants underwent gross nail examination, dermoscopy, potassium hydroxide (KOH), and periodic acid-Schiff (PAS) examinations.

Sensitivity, specificity, predictive value, and likelihood ratios (LRs) of the dermoscopic patterns were obtained using KOH and PAS results as the reference standard.

Fifty-one nails were submitted but 2 were lost during the processing, leaving 49 nails for analysis. The most common pattern was jagged edge with spikes (65.3%). Individual patterns yielded only low-to-moderate sensitivity (32.4%–73.5%). However, combining all patterns increased sensitivity to 91.2% (95% confidence interval: 76.3–98.1). Ruin appearance showed the highest specificity (100%) and positive predictive value (100%). LRs were not significant enough to draw the conclusions.

Dermoscopy may serve as an on-site, adjunct tool in the diagnosis of DSO, especially when the combination of patterns is considered. Ruin appearance maybe particularly useful in ruling in DSO. However, confirmation using mycological and histopathological tests remains essential.

BACKGROUND

Otomycosis, or fungal infection of the ear, is most commonly caused by Aspergillus, particularly of the Aspergillus niger species. On the other hand, pulmonary aspergilloma is a late manifestation of chronic cavitary pulmonary aspergillosis. Development of invasive aspergillosis is a possibility in immunocompromised patient but very rarely seen in immunocompetent persons. There have been no published reports in patients who initially presented as otomycosis and later development of pulmonary aspergilloma.

This case report presents 53-year-old Filipino immunocompetent female who was initially presented with ear discharges with diagnosed with otomycosis. She underwent modified radical mastoidectomy of the right ear with tympanoplasty type II. The patient then developed right facial nerve palsy due to erosion of the facial nerve canal. She was discharged with a final diagnosis of chronic suppurative otitis media with cholesteatoma; however, patient was not started on any anti-fungal medications. After fourteen months, the patient presented with episodes of hemoptysis and dyspnea and eventually re-admitted. Diagnostic work up was done with chest CT scan and serum galactomannan antigen test. She was diagnosed to have pulmonary aspergilloma. Patient was then started on long term anti-fungal therapy, instead of invasive surgical procedure. Repeat chest CT scan after six months showed a decrease in the size of the fungal ball.

This study illustrates the lung aspergilloma may happen with preceding history of invasive otic fungal infection even if there is no immunocompromised condition. It also emphasizes the importance of proper identification of infection etiology to ensure adequate control and prevent further opportunistic infection.

BACKGROUND

With the utility of nail dermoscopy to supplement the diagnosis of onychomycosis, studies have been done in describing common findings. However, most of these were based in Europe and the Americas. Given the geographical variation of onychomycosis, a local study is needed.

The general objective of this cross-sectional study is to determine the different patterns among the clinical subtypes of laboratory diagnosed onychomycosis patients seen at the Philippine General Hospital (PGH).

Clinically suspected Filipino onychomycosis patients seen at the PGH - Department of Dermatology, and at the PGH inpatient wards were recruited. All patients underwent the following: direct KOH microscopy, fungal culture studies, and nail clipping with PAS staining.

A total of 75 samples were included; 93.33% of the samples were categorized as DLSO subtype, 5.33% as TDO, and 1.33% as PSO. The three most common onychoscopic patterns were subungual hyperkeratosis (93.33%), chromonychia (85.33%), and longitudinal striae in 81.33%. KOH was positive in 57.33% of the cases, cultures in 38.67% and PAS stain in 80%. Onychoscopic pattern was not associated with clinical type of onychomycosis and causative organism. Negative KOH result was associated with linear edges (p=0.02).

Among patients with clinical and laboratory diagnosed onychomycosis, linear edges and jagged proximal edges were associated with negative KOH microscopy and fungal CS, respectively. Hence, in situations where such examinations are negative despite a strong clinical suspicion of onychomycosis, the above onychoscopic findings can be used for empirical diagnosis.

BACKGROUND

Accurate diagnosis of onychomycosis is important because its treatment is long-term, costly, and sometimes with complications. KOH test is quick and cheap but has low sensitivity. Hence, the need for additional tests such as culture and/or PAS. However, these two tests are not readily available and expensive. Dermoscopy is an emerging tool for the diagnosis of nail conditions.

This study aims to evaluate the accuracy of dermoscopy as a point-of-care tool in diagnosing distal subungual onychomycosis (DSO).

This is a prospective, cross-sectional study of 22 clinically diagnosed DSO patients selected via convenience sampling in a tertiary hospital from November 2019 to March 2021. Participants had gross nail examination, dermoscopy, KOH and PAS tests. Measures of diagnostic accuracy for the different dermoscopic patterns were obtained, with KOH and PAS results as reference standard.

Fifty-one nail samples were submitted for processing with only 49 nails accepted for analysis. The most common pattern was jagged edge with spikes (65.3%). Combining all 5 dermoscopic patterns increased the sensitivity to 91.2% (95% CI: 76.3, 98.1).

Dermoscopy may be used as a first-step, point-of-care tool in the diagnosis of DSO. Addition of mycological and histopathological tests is still warranted for confirmation.

BACKGROUND

Superficial mycoses are one of the most common skin conditions encountered in the outpatient clinics, causing significant morbidity amongst patients. Since these are highly prevalent diseases of the skin, the general practitioner should be able to manage uncomplicated cases, with no need for evaluation by a specialist.

The study aimed to determine the knowledge, attitudes, and practices of Filipino medical interns on the management of superficial cutaneous mycoses using a self-administered questionnaire. This may help identify possible gaps in knowledge, as well as obstacles these future clinicians may encounter when managing superficial mycoses. This in turn may assist in the development or improvement of dermatology training among medical students and continuing medical education programs amongst non-dermatologist physicians.

This is a descriptive cross-sectional study among medical interns of the Philippine General Hospital to investigate their knowledge, attitudes, and practices regarding the management of superficial mycoses. Eligible participants were asked to complete an online self-administered survey questionnaire which assessed their capacity to recognize and manage uncomplicated superficial mycoses, and determined their attitudes regarding dermatology training in medical school.

The study included 170 medical interns, with majority having only 1-4 weeks of cumulative duration of dermatology training in medical school. Many of the participants (67.1%) had inadequate overall knowledge scores, but this was not significantly associated with their cumulative duration of dermatology training, as well as with their frequency of encounters with superficial mycosis patients. Most deem dermatology training (92.4%) and learning about the management of superficial mycoses (91.2%) during medical school very important. Majority are interested in attending more courses or training in the subject. Recommendations to improve medical school training on superficial mycoses include more practical approach in dermatology modules, integration of dermatology electives in medical school, and longer duration of dermatology modules/rotations during medical school.

While knowledge scores of medical interns were not significantly associated with the duration of their dermatology training during medical school as well as their encounters with patients with superficial mycoses, it is shown that they have low confidence scores regarding management of superficial mycoses. They deem that learning more about this disease and dermatology in general is vital to their medical education and are desirous of more training in this subject. Recommendations to improve medical school training on superficial mycoses include dermatology modules, rotations or electives in medical school. Additionally, better training during medical school, and formulation of clinical practice guidelines specific to cutaneous mycoses were recommended to improve healthcare delivery for patients with such diseases.

Background: Pityriasis versicolor is a common fungal infection of the superficial skin layer caused by Malassezia furfur, a normal commensal in the skin. Keratolytic agents are popular, cheap, and readily available over-the-counter treatments for pityriasis versicolor. Conventional antifungal agents are more expensive, requiring prescription, and may induce resistant strains. However, evidence of their comparative safety and efficacy is still lacking. Objectives: To assess the efficacy and safety of synthetic antifungals compared to keratolytic agents in the topical treatment of pityriasis versicolor through a systematic review. Methods: We searched the following databases: MEDLINE (from 1966) through PubMed, CENTRAL (Issue 9 of 12, September 2021), EMBASE (from 1974), LILACS (from 1987); Herdin (from 1970), www.clinicaltrials.gov, www. isrctn.com, www.trialregister.nl. We contacted researchers in the field, hand searched relevant conference abstracts, and the Journal of the Philippine Dermatological Society 1992-2019. We included all randomized controlled trials involving patients with diagnosed active pityriasis versicolor where topical antifungal was compared with a topical keratolytic for treatment. Two review authors independently applied eligibility criteria, assessed risk of bias using the Cochrane collaboration tool, and extracted data from included studies. We used RevMan 5.3 to pool dichotomous outcomes using risk ratios (RR) and continuous outcomes using the mean difference (MD), using random-effects meta-analysis. We tested for statistical heterogeneity using both the Chi² test and the I² test. We presented results using forest plots with 95% confidence intervals. We planned to create a funnel plot to determine publication bias but were unable to due to few studies. A Summary of Findings table was created using GRADE profile software for the primary outcomes. Results: We included 8 RCTs with a total of 617 participants that compared azole preparations (ketoconazole, bifonazole and econazole) versus keratolytic agents (selenium sulfide, adapalene, salicylic-benzoic acid). Pooled data showed that azoles did not significantly differ from keratolytic agents for clinical cure (RR 0.99, 0.88, 1.12; 4 RCTs, N=274, I2=55%; very low-quality evidence), and adverse events (0.59 [0.17, 2.06]; very low-quality evidence) based on 6 RCTs (N=536). There were two patients given a keratolytic agent (selenium sulfide shampoo) who had acute dermatitis and discontinued treatment. Conclusion It is uncertain whether topical azoles are as effective as keratolytic agents in clinical clearance and occurrence of adverse events in patients with pityriasis versicolor. A wider search of grey literature and local studies are warranted. Larger RCTs with low risk of bias are recommended.
Azoles ; Tinea Versicolor

Introduction: Pseudomonas aeruginosa is an opportunistic, gram-negative bacillus that can contaminate skin or open wounds to cause skin infections that are historically difficult to manage. The pathogenesis of green nail syndrome (GNS) begins with hyperhydration (occlusion, sweating, maceration) or destruction (microtrauma, dermatitis) of the epidermis thus disrupting the physical barrier, leading to the colonization and proliferation of P. aeruginosa. This case explores the off-label use of nadifloxacin, a fluoroquinolone approved for acne and bacterial skin infections in some countries, to treat a case of GNS. Case Report: This is a case of a 31-year-old Filipino female who presented with a four-month history of green discoloration of the lateral portion of the right thumbnail with a medical history of antiphospholipid antibody syndrome and rheumatoid arthritis. Clinical examination showed a dystrophic thumbnail with greenish discoloration, erythema and swelling around the base of the cuticle, and distal onycholysis. Laboratory findings revealed co-infection of P. aeruginosa and Candida parapsilosis. The patient was effectively treated with topical nadifloxacin and oral fluconazole. Conclusion This case highlights the possibility of fungal and polymicrobial infections in GNS and suggests a novel, easy-to-use, and cost-effective alternative treatment to GNS secondary to P. aeruginosa in the form of topical nadifloxacin.
Candida parapsilosis ; Pseudomonas aeruginosa ; Onychomycosis

Chronic pulmonary aspergillosis (CPA) is a rare disease. It is usually diagnosed in immunocompromised patients with other chronic respiratory disorders. Diagnosis can be challenging due to non-specific symptoms. It is based on clinical, radiological, and microbiological criteria and excludes other causes of the symptoms. The outcomes of antifungal treatment may be unpredictable as optimal treatment duration has not yet been standardized. This is the case of a 74-year-old male who presented via teleconsultation with hemoptysis. GeneXpert for pulmonary tuberculosis was negative. Chest radiograph showed a cavitary lesion with an aspergilloma within. This led to a longstanding treatment effort with voriconazole, as he was a poor candidate for surgical resection due to the risk of post-operative complications. Three months into the treatment, the patient unexpectedly suffered from a severe episode of dyspnea, culminating in cardiac arrest. While the patient has been resuscitated with no residuals, it is only one of the many steps on his road to recovery and his second lease on life, this time coming to terms with his own preferences and values regarding his medical care. The patient showed clinical improvement and the promise of a cure in his fifth month of treatment. Learning points include the role of family physicians in a patient’s well-being even in specialized cases, the value of individualized care and the application of technology in hybrid consultation and monitoring.
Aspergillosis ; hemoptysis ; voriconazole

Humans ; Adult ; Invasive Pulmonary Aspergillosis ; Pneumonia, Viral/complications* ; Risk Factors ; Pulmonary Aspergillosis/complications*

BACKGROUND: Previous research demonstrated that a homozygous mutation of g.136372044G>A (S12N) in caspase recruitment domain family member 9 ( CARD9 ) is critical for producing Aspergillus fumigatus -induced ( Af -induced) T helper 2 (T H 2)-mediated responses in allergic bronchopulmonary aspergillosis (ABPA). However, it remains unclear whether the CARD9S12N mutation, especially the heterozygous occurrence, predisposes the host to ABPA. METHODS: A total of 61 ABPA patients and 264 controls (including 156 healthy controls and 108 asthma patients) were recruited for sequencing the CARD9 locus to clarify whether patients with this heterozygous single-nucleotide polymorphisms are predisposed to the development of ABPA. A series of in vivo and in vitro experiments, such as quantitative real-time polymerase chain reaction, flow cytometry, and RNA isolation and quantification, were used to illuminate the involved mechanism of the disease. RESULTS: The presence of the p.S12N mutation was associated with a significant risk of ABPA in ABPA patients when compared with healthy controls and asthma patients, regardless of Aspergillus sensitivity. Relative to healthy controls without relevant allergies, the mutation of p.S12N was associated with a significant risk of ABPA (OR: 2.69 and 4.17 for GA and AA genotypes, P = 0.003 and 0.029, respectively). Compared with patients with asthma, ABPA patients had a significantly higher heterozygous mutation (GA genotype), indicating that p.S12N might be a significant ABPA-susceptibility locus ( aspergillus sensitized asthma: OR: 3.02, P = 0.009; aspergillus unsensitized asthma: OR: 2.94, P = 0.005). The mutant allele was preferentially expressed in ABPA patients with heterozygous CARD9S12N , which contributes to its functional alterations to facilitate Af -induced T H 2-mediated ABPA development. In terms of mechanism, Card9 wild-type ( Card9WT ) expression levels decreased significantly due to Af -induced decay of its messenger RNA compared to the heterozygous Card9S12N . In addition, ABPA patients with heterozygous CARD9S12N had increased Af -induced interleukin-5 production. CONCLUSION Our study provides the genetic evidence showing that the heterozygous mutation of CARD9S12N , followed by allele expression imbalance of CARD9S12N , facilitates the development of ABPA.
Humans ; Aspergillosis, Allergic Bronchopulmonary/complications* ; Aspergillus fumigatus/genetics* ; Asthma/genetics* ; Aspergillus ; Mutation/genetics* ; CARD Signaling Adaptor Proteins/genetics*