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Dermatophytes, fungi specialized in keratin degradation, are key agents in skin infections, commonly referred to as tineas. Tinea manuum, affecting the hands, typically presents in noninflammatory or inflammatory forms, with ulcerative manifestations rarely reported. Nannizzia gypsea, a relatively uncommon cause of tineas, exhibits variable prevalence influenced by geographic factors. This study investigates a case of Ulcerative Unilateral Tinea Manuum caused by N. gypsea, aiming to explore the differential diagnosis, pathogenesis, and management. A 23-year-old female from the Yucatan Peninsula presented with an ulcerated lesion on her left hand. Initially suspected as Leishmaniasis, subsequent examination revealed tinea manuum. The study discusses differential diagnoses, highlighting the rarity of ulcerative presentations in dermatophytosis, and explores potential pathogenic mechanisms. This case underscores the importance of considering dermatophytes in ulcerative skin lesions and suggests a comprehensive diagnostic approach, particularly in endemic regions.

Nannizzia polymorpha is a dermatophyte that rarely infects humans. We describe 2 case-patients from Asia who had an inflammatory type of tinea capitis and tinea manuum caused by infection with this fungus. The diagnosis was confirmed on the basis of the morphologic and molecular characteristics of the microorganism.

Ringworm infection is a common but frequently misdiagnosed skin disease. An 81-year-old woman presented with a complaint of mild itch of the third and fourth fingers of her right hand and the toes of both feet. A crusted rash was seen on the right hand and both feet. The results of potassium hydroxide testing were positive for filamentous fungi. The diagnosis of two feet-one hand syndrome was made. The rash was treated successfully by topical ketoconazole. Recognition of this typical distribution of the rash may help make a prompt diagnosis of ringworm infection.

Introduction Palmoplantar dermatoses are skin diseases affecting specifically palms and soles is a common clinical entity encountered by dermatologists. This may cause discomfort and embarrassment to the patients because its location interferes significantly with normal day-to-day activities. Palmoplantar dermatosis affects a heterogeneous population, ranging from bare-handed workers in the slaughterhouse to medical personnel wearing gloves in the operating room. The present study endeavors to classify palmoplantar dermatoses based on their morphology and the clinical distribution pattern. Materials and methods The present study is a descriptive cross-sectional study conducted for six months at Osmania General Hospital, India. A total number of 80 patients having palmoplantar dermatoses who met the study inclusion criteria were included. After taking proper informed consent, data were collected from patients on a fixed proforma sheet. Results The study comprised 44 (55%) male and 36 (45%) female patients. The mean duration of palmoplantar dermatoses was 2.92 years. Itching and painful fissures are the most common symptoms patients complained of and psoriasis is the most common clinical type seen in 32 (40%) patients followed by eczemas in 30 (37.5%) patients and fungal infections in 10 (12.5%) patients. Conclusion The term palmoplantar dermatoses includes a heterogeneous group of skin disorders but no exact classification is present and classes differ based on the diseases to be kept in a group. Physicians should be well aware of the clinical features of these dermatoses and diagnosis is very important for early intervention and correct management, thereby helping improve patients\' quality of life.

OBJECTIVE: Tinea manuum is considered in Italy as an uncommon infection, although no recent epidemiological data are available.
METHODS: In the period 2000-2018, we observed in the metropolitan area of Milan 18 patients with mycologically tinea manuum.
RESULTS: The infection was monolateral in all patients and characterised by erythema and scaling; in two patients, each vesicles and pustules were present. Two patients had also onychomycosis of one fingernail. No cases of simultaneous tinea pedis were observed. As far as the job of these patients is concerned, seven of them were masseurs, three barbers, two cattlemen, two masons, one car mechanic, one florist, one maid and one veterinarian. Trichophyton rubrum was isolated in 6 patients, Microsporum canis in 4, Trichophyton gypseum in 3, Trichophyton verrucosum in 3 and Trichophyton violaceum in 2 patients.
CONCLUSIONS: Masseurs were the most affected. Trichophyton rubrum and Microsporum canis were the most frequent isolated dermatophytes.

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Trichophyton erinacei is a zoonotic fungus affecting hedgehogs. Although several human infections with this organism have been documented in the literature, it has rarely been isolated as a human pathogen. This paper reports on an erythematous lesion spotted on the hand of a 10-year-old girl. Based on the culture of the patient\'s skin scrapings, the pathogen was mycologically identified as T. erinacei, which was further confirmed by sequencing the internal transcribed spacers of the fungal nuclear ribosomal DNA using universal primer ITS1-ITS4. This is the first case of T. erinacei in a Tunisian patient. A survey was carried out on the environment of our patient, and the results revealed the presence of hedgehogs with suspect scaly lesions. The same fungus was isolated from the hair and scales of the hedgehog, which was confirmed by PCR sequencing. The frequency of T. erinacei has often been underestimated, which is attributed not only to the gaps of knowledge still existing in the current understanding of the dermatophyte but also to differential diagnosis problems. Molecular study offers a simple and rapid tool to identify the source of infection and, hence, avoid the risk of recurrence.