Demonstration of direct immunofluorescence on three substrates in a case of pemphigus.

Direct immunofluorescence (DIF) on skin is considered as the gold standard in the diagnosis of pemphigus. However, alternate substrates can be used. We demonstrate DIF on three substrates, skin biopsy specimen, anagen hair and scrapings of oral erosions. Collection of alternative substrates can be more acceptable to young patients as it is less invasive. It may also be used to detect relapses in cases of pemphigus.

The Great Imitator: Cervicofacial Actinomycosis Masquerading as Cancer Recurrence.

Cervicofacial actinomycosis being one of the unusual infections is of high relevance to a head and neck onco-surgeon. As the diagnosis may be made difficult by its nature to mimic malignancy and egregiously low culture sensitivity, the differential diagnosis for a lesion appearing to be malignant after irradiation does not usually include actinomycotic infection. Treatment usually requires a long-term antibiotic course after confirmation with histopathology, albeit surgical debridement is required in selective cases. Here we report two cases that were clinico-radiologically diagnosed as osteoradionecrosis and histopathological analysis done to rule out cancer recurrence. Unanticipated, they turned out to be cervicofacial actinomycosis, subsequently treated with long-term antibiotics following which the infection subsided.

Viewing the resurgence of early syphilis in light of increasing male homosexuality and childhood sexual abuse.

BACK GROUND AND OBJECTIVES: A rising trend of syphilis has been documented worldwide recently. After decriminalization of homosexuality in India more and more males having sex with males (MSMs) have come out to seek medical advice. AIM: We evaluated sexual behavior of patients with syphilis attending our sexually transmitted infections (STIs) clinic focusing on the factors associated with the increasing MSM practices and rising trend of syphilis among MSM. MATERIALS AND METHODS: This is a 10-year (2006-2015) descriptive study from among STI patients attending the dermatology outpatient department in a tertiary care center. Recognizing the rising homosexuality, from 2011 onward, we had given a questionnaire to assess their sexual behavior and sexual practices. RESULTS: Analysis of data from 560 cases diagnosed as having STI revealed a rising trend of all STIs including syphilis from 2011 onward. The MSM cases reporting to our STI clinic showed a sustained rise from 2011 onward. The most common STI in MSM was syphilis that too early acquired. More than half of the MSM indulged in bisexual activities and the predominant mode was anoreceptive. Nearly 70% had unprotected contact and most had early sexual debut (<20 years). Thirty-six percent gave a history of childhood sexual abuse (CSA) by a close male acquaintance. CONCLUSIONS: After 2011, we have observed a resurgence of early acquired syphilis which coincided with an increase in promiscuous homosexuality. Many of the MSMs were bisexuals and homosexuality was an acquired behavior. An alarming increase in the incidence of CSA was observed in MSMs.

Profile of Dermatophytosis in a Tertiary Care Center in Kerala, India.

BACKGROUND: The incidence of dermatophytosis is increasing over the last few years and there are many cases which are recurrent and chronic. AIM: The aim was to study the host and pathogen factors in dermatophytosis, to identify the species responsible, and to study the histopathological features of chronic dermatophytosis. MATERIALS AND METHODS: It was a descriptive study conducted in the Department of Dermatology for a period of 1 year and all patients who were clinically diagnosed as dermatophytosis were included. Isolated hair, and nail involvement were excluded from the study. Epidemiological parameters and treatment history were analyzed, scrapings, and fungal culture were done in all patients. Histopathological examination was done in patients with chronic dermatophytosis who had applied topical steroids. RESULTS: Chronic dermatophytosis was seen in 68%; tinea corporis was the most common presentation; topical steroid application was seen in 63%; azoles were the most common antifungals used; varied morphologies such as follicular and nonfollicular papules, arciform lesions, pseudoimbricata were seen in steroid modified tinea. Trichophyton rubrum and Trichophyton mentagrophytes were the most common species isolated in culture, but rare species such as Trichophyton tonsurans, Trichophyton schoenleinii, Epidermophyton floccosum, and Microsporum audouinii were also isolated from chronic cases. Histopathology showed perifolliculitis in steroid modified tinea. Minimal inhibitory concentration was lowest for itraconazole in susceptibility studies. CONCLUSION: Chronicity in dermatophytosis is due to various factors such as topical steroid application, noncompliance, and change in predominant species.

Profile of Dermatophytosis in a Tertiary Care Center.

BACKGROUND: The incidence of dermatophytosis is increasing over the last few years and there are many cases which are recurrent and chronic. AIM: The aim was to study the host and pathogen factors in dermatophytosis, to identify the species responsible, and to study the histopathological features of chronic dermatophytosis. MATERIALS AND METHODS: It was a descriptive study conducted in the Department of Dermatology for a period of 1 year and all patients who were clinically diagnosed as dermatophytosis were included. Isolated hair, and nail involvement were excluded from the study. Epidemiological parameters and treatment history were analyzed, scrapings, and fungal culture were done in all patients. Histopathological examination was done in patients with chronic dermatophytosis who had applied topical steroids. RESULTS: Chronic dermatophytosis was seen in 68%; tinea corporis was the most common presentation; topical steroid application was seen in 63%; azoles were the most common antifungals used; varied morphologies such as follicular and nonfollicular papules, arciform lesions, pseudoimbricata were seen in steroid modified tinea. Trichophyton rubrum and Trichophyton mentagrophytes were the most common species isolated in culture, but rare species such as Trichophyton tonsurans, Trichophyton schoenleinii, Epidermophyton floccosum, and Microsporum audouinii were also isolated from chronic cases. Histopathology showed perifolliculitis in steroid modified tinea. Minimal inhibitory concentration was lowest for itraconazole in susceptibility studies. CONCLUSION: Chronicity in dermatophytosis is due to various factors such as topical steroid application, noncompliance, and change in predominant species.

Neurolymphomatosis in Primary Cutaneous CD4+ Pleomorphic Small/Medium-sized T-cell Lymphoma Mimicking Hansen's Disease.

Neurolymphomatosis (NL) refers to nerve infiltration by neurotropic neoplastic cells in the setting of a known or an unknown hematological malignancy. It typically presents as painful or painless peripheral mononeuropathy, mononeuritis multiplex, polyneuropathy, polyradiculopathy, or cranial neuropathy. A 32-year-old male presented with a hyperpigmented hypoesthetic plaque over the anterolateral aspect of the right leg with thickening of the right common peroneal nerve and foot drop clinically diagnosed as Hansen's disease. Biopsy taken from skin showed infiltrates of pleomorphic small and medium sized lymphocytes in the dermis and subcutis. On immunohistochemistry, the cells were positive for CD3, CD4 and negative for CD8, CD20, and CD30. Ultrasonography-guided fine-needle aspiration of the thickened nerve showed infiltrates of atypical lymphoid cells. Based on these findings, a diagnosis of NL in primary cutaneous CD4+ pleomorphic small/medium-sized T-cell lymphoma was made. The disease responded to systemic chemotherapy and localized radiotherapy with no evidence of relapse during 3 years follow-up. NL in primary cutaneous CD4+ pleomorphic small/medium-sized T-cell lymphoma presenting with manifestations redolent of Hansen's disease is not described in available literature. This case also demonstrates the utility of fine needle aspiration of nerve, a minimally invasive procedure in the diagnosis of NL.

Verrucous Onychomycosis Caused by Curvularia in a Patient with Congenital Pterygium.

A 57 year healthy farmer with congenital nail pterygium presented with a verrucous growth on nail bed since 8 months. He was not diabetic and HIV rapid card test negative. Our clinical diagnosis was chromoblastomycosis but culture showed growth of curvularia species on two occasions and histopathology showed hyphal and yeast forms of the pigmented fungus. After excision biopsy patient was started on oral itraconazole. This case is reported due to rarity of verrucous cutaneous lesions caused by curvularia in immunocompetent individuals.

Interchanging Autoimmunity - Lupus Mastitis Coexisting with Systemic Polyarteritis Nodosa.

Lupus mastitis is an uncommon presentation of lupus erythematosus profundus (LE profundus), characterized by inflammation of the subcutaneous fat. LE profundus occurring as initial manifestation of LE is rare. We report a case where the patient presented with lupus mastitis and years later, she developed disseminated discoid LE (DLE) and polyarteritis nodosa (PAN). PAN and DLE are connective tissue diseases with different etiologies, clinical, immunological, and histopathological features. One connective tissue disease evolving into another is rare, and the reasons remain unexplained. This woman had histopathologically proven DLE and lupus mastitis with a negative antinuclear antibody profile. She satisfied the American College of Rheumatology criteria for PAN.