Pemphigus foliaceous is a rare autoimmune blistering disease, while psoriasis is a common immune-mediated inflammatory skin disease. The coexistence of psoriasis and pemphigus foliaceous has rarely been reported. We report a case of a 55-year-old Filipino female with an 8-year history of chronic plaque-type psoriasis biopsy-proven. After 5 years, she developed generalized flaccid bullae and crusted erosions over the face, trunk, and extremities, with no mucous membrane involvement. Skin punch biopsy, direct immunofluorescence, and enzyme-linked immunosorbent assay were consistent with pemphigus foliaceous. The combination of topical corticosteroids and oral methotrexate was selected as the therapeutic approach, leading to a notable improvement in the patient’s condition. This case report underscores the significance of identifying the simultaneous presence of psoriasis alongside autoimmune blistering diseases like pemphigus foliaceous. Examining predisposing and triggering factors, performing re-biopsy, and further work-up as the disease evolves may yield more profound insights. Nonetheless, effectively managing this condition poses a significant challenge.

Poroid hidradenoma is a rare adnexal neoplasm that presents with slow-growing solitary dermal or subcutaneous nodules with pink, red, or blue coloration. Malignant transformation has been reported in about 1%; however, clinical and histologic characteristics may present similarly with malignant neoplasms. A 60-year-old, Filipino, female presented with a 1-month history of a solitary, brownish-black papule on the right cheek progressing to a translucent friable nodule with associated bleeding after minimal trauma. The patient was initially assessed as a case of basal cell carcinoma due to its rapid growth. Hence, the patient was referred to a dermatologic surgeon for biopsy. Poroid hidradenoma was confirmed histologically and was managed with local excision. Poroid hidradenoma presenting with rapid growth is a very rare occurrence.

Tuberous sclerosis complex (TSC) is a rare, autosomal dominant multisystem disorder affecting the brain, heart, kidneys, lungs, and skin leading to significant morbidity and mortality. We report a case of TSC and highlight the need for prompt diagnosis and proper surveillance to minimize life-threatening complications. A 20-year-old female presented with facial and ungual papulonodular lesions 4 years after being diagnosed with epilepsy at the age of eight. No family history of genetic diseases was reported. Eight years later, the patient developed recurrent cough, shortness of breath, and blurring of vision. Biopsy of facial and digital nodule showed angiofibroma and ungual fibroma (Koenen tumor), respectively. Chest computed tomography scan revealed extensive cystic lesions diffusely scattered throughout the entire lung parenchyma suggestive of lymphangioleiomyomatosis. Cranial MRI revealed cortical and subependymal tubers, compatible with TSC. The patient had multidisciplinary management. However, her symptoms progressed, and she eventually succumbed to death. Cutaneous lesions such as facial angiofibromas and ungual fibromas along with multisystemic manifestations should alarm the clinician to TSC. Given its highly variable expressivity, awareness of different TSC-associated signs and symptoms is essential for prompt diagnosis, proper treatment, disease monitoring, and early recognition of TSC complications.

Syphilis is one of the most common sexually transmitted diseases in the world. It is known as “the great mimicker” due to its varied cutaneous presentations, which can make it challenging to diagnose. We report a case of a 20-year-old female presenting with a nonhealing, pruritic, annular plaque on the left malar area of 3-month duration. She was initially treated as a case of tinea faciei. The lesion was unresponsive to topical antifungals and steroids with continued increase in size and number. Skin biopsy revealed secondary syphilis with histopathologic features of granuloma annulare. Degenerated collagen, not a feature of secondary syphilis, was seen, prompting further studies to confirm the diagnosis of secondary syphilis. Alcian blue stain was negative, which helped rule out granuloma annulare. She was then given benzathine penicillin G 2.4 million U, which led to a significant decrease in the size of the lesion noted 1 week posttreatment. Only postinflammatory hyperpigmentation was noted after 1 month of treatment. Clinically, secondary syphilis may present as an annular lesion that can mimic tinea. This can also present with atypical histopathologic features and an in-depth investigation is needed to further confirm the diagnosis.

Nevoid hyperkeratosis of the nipple and areola (NHNA) is a rare, asymptomatic skin condition characterized by verrucous, hyperpigmented papules, and plaques. It predominantly affects the nipple and areola, often bilaterally. Less than 50 cases have been reported worldwide, with only 39% showing unilateral breast involvement. In the Philippines, a single medical literature from 2014 describes two cases of adolescent-onset NHNA. We report a rare case of a 40-year-old, Filipino woman with a 1-year history of a mildly pruritic, solitary, well-demarcated, irregularly shaped, black papule that progressed into a plaque on her right areola. There was suspicion of cutaneous malignancy due to some of the clinical features of the lesion and lack of response to initial treatment. With a correlation between clinical presentation and histopathologic findings, the features were consistent with NHNA. This is a benign skin condition that can mimic and must be differentiated from malignant tumors. Various treatment modalities were described in different medical literatures, some resulting in recurrence or treatment failure, but there is no standard management for this condition. Skin biopsy is crucial to rule out malignancy in cases presenting with persistent and progressively solitary pigmented lesions that do not respond to topical medications. The usual treatment options based on literature include various topicals, lasers, and surgical procedures. In our case, clobetasol propionate ointment was used. While most published cases show varied responses to topical corticosteroids, the result in our case was significant.

Bullous pemphigoid (BP) is a rare autoimmune blistering disorder primarily affecting older adults, with limited occurrences in children. BP in children typically manifests as large, tense blisters on the skin, often on flexural areas. It also more often affects the oromucosal areas and the face in children than in adults. Diagnosis involves histopathological examination revealing eosinophilic spongiosis or subepidermal split, immunofluorescence tests highlighting immunoglobulin G (IgG) and C3 depositions, and immunological assays detecting BP180 and BP230 IgG autoantibodies. This report presents two cases of childhood BP (CBP) with atypical immunopathological findings. Clinically, the two cases had generalized plaques and bullae, including the face. The first case exhibited the characteristic linear deposits of IgG and C3 on the basement membrane through direct immunofluorescence (DIF) and revealed negative anti-BP180 antibodies on enzyme-linked immunosorbent assay (ELISA). In contrast, the second case showed negative DIF results, despite clinical suspicion, but had positive anti-BP180 IgG antibodies on ELISA. It is, therefore, crucial to consider the complete clinical presentation of the patient, in conjunction with the histological findings and immunopathologic assessments to diagnose CBP.

Lues maligna, also known as malignant syphilis, is an uncommon variant of syphilis at the secondary stage – more commonly reported in immunocompromised patients or those with concomitant human immunodeficiency virus (HIV) infection. In this report, we present a case of a 28-year-old HIV-negative male with a 9-month history of multiple, well-defined, irregularly-shaped, erythematous papules, and small plaques evolving to ulcerated plaques and nodules with crusts, associated with pain, pruritus, and episodes of fever, arthralgia, and weight loss. Positive treponemal and nontreponemal tests, aided by histopathologic findings consistent with syphilis led to the diagnosis of lues maligna. Significant improvement of lesions was noted with 3 weekly doses of 2.4 million units of benzathine penicillin G. For patients presenting with painful and pruritic erythematous ulcerated plaques with crusts associated with systemic symptoms, and with a significant sexual history despite testing negative for HIV infection, a high index of suspicion for uncommon presentations of other sexually transmitted infections such as syphilis could aid in early diagnosis and subsequent treatment.

Background: Allergic contact dermatitis (ACD) is a common skin inflammatory reaction occurring at the site of challenge with a contact allergen in sensitized individuals and one of the most common causes for consultation in dermatology clinics. Patch testing is a method for detecting the causative component in suspected cases of ACD. Awareness about the causative allergen aids in reducing morbidity and can significantly minimize the impact of ACD in the affected people. Objectives: The study aimed to measure the number of relevant positive reactions in patch tests being performed in our institution in patients with ACD to cosmetic products. Methods: A total of 60 patients who were diagnosed with ACD to cosmetics and underwent patch testing were reviewed to identify the clinico-epidemiological and patch test profiles of these patients. Results: The study showed that the mean age of patients was 42 comprising mostly of females. Most of the patients were unemployed, office workers, and medical workers. The most common cosmetic products that caused ACD include soaps, shampoos, lotions, and moisturizers. Nickel is still the most tested positive among these patients, followed by fragrance mixes and 4-phenylenediamine base. They are widely distributed in cosmetic products, especially in soaps and lotions. The pattern of dermatitis revealed facial dermatitis to be the most common reason for consult of these patients. Conclusion: Patch test is valuable in the setting of establishing the etiology of ACD to cosmetic products.

Abstract Cutaneous metastasis (CM) describes the spread of a distant primary tumor into the skin. The overall incidence of CM ranges from 5% to 10% with breast cancer having the highest rate in women. CM of breast carcinoma origin may manifest as erysipelas-like erythema on the chest, having distinct raised borders and edema due to lymphatic obstruction termed as carcinoma erysipeloides. In most cases, CM is recognized after the initial diagnosis of primary internal malignancy. However, in 0.6–1% of cases, CM served as the first presenting sign of malignancy. A 48-year-old female presented with multiple, erythematous patches, and plaques with clear-cut raised margins, some topped with violaceous pinpoint papules and nodules on the chest, abdomen, and back. No palpable breast mass was appreciated. There was noted nipple retraction and axillary lymphadenopathy. A 4-mm skin punch biopsy revealed nests of large pleomorphic cells on the papillary dermis admixed with mitotic figures and attempts of ductal formation. CK7 and CEA were positive. Results of ultrasonography and mammogram were highly suspicious of malignancy. Core needle biopsy of the breast mass revealed an invasive ductal carcinoma. In the context of an eczematous presentation on the chest area without palpable nodules or mass on breast examination, a diagnostic challenge is expected. Interestingly, our patient represents a small group of CM having cutaneous lesions as their primary manifestation. A high index of suspicion supplemented with proper clinicopathologic and radiologic correlation is crucial for the diagnosis of CM. A multidisciplinary referral is required for adequate management and overall survival rate.

Abstract Background: Teledermatology has been widely used during the coronavirus disease 2019 (COVID-19) pandemic to overcome barriers in access to care. The objective of this study was to assess the current knowledge, attitudes, and practices regarding teledermatology among dermatologists in the Philippines. Materials and Methods: This was a cross-sectional and analytical study conducted from January 2022 to April 2022, among Filipino dermatologists using a self-administered online questionnaire. Descriptive statistics was used to summarize the demographics of the participants. The two-sample t-test, Chi-square test, and multiple logistic regression model were used to analyze the data. Results: Out of 113 respondents, 108 (95.5%) had adequate knowledge and a positive attitude toward teledermatology. The majority (110/113, 97.35%) practiced teledermatology. The most commonly used platform was instant messaging applications (78/100, 70.91%), and the most common factor that influenced their practice was patient demands or needs (74/110, 67.27%). Those who did not practice teledermatology cited technological difficulties as the main reason. Conclusion: Teledermatology was widely used by Filipino dermatologists to provide remote care during the COVID-19 pandemic. However, to fully utilize its potential and limit potential issues associated with its use even after the pandemic, continuous training and education among dermatologists and a more enabling technological environment may be needed.