Fungal Skin Infections — MCQs

The appearance of this foot is most consistent with which one of the following diagnoses?

A patient presents with a non-itchy plaque positive for hyphae. What is the most likely diagnosis?

A thirty-two-year-old adult male presents with a chronic suppurative lesion on the angle of the jaw. Microscopic examination shows small abscesses immediately beneath the epidermis with moderate growth of epithelial cords. In the abscess, there are oval, unicellular organisms measuring 20 µm in diameter and having a thick, double-refractive cell wall and cytoplasm containing refractive granules and vacuoles. Which of the following is the most likely diagnosis?

Dermatophytids are defined as:

Which of the following tests is likely to be helpful in diagnosing a patient presenting with an itchy annular plaque on the face?

What is the management for the given case?

Potassium iodide is useful in the treatment of which of the following conditions?

In dermatophytosis, which antifungal drug is not indicated?

A gardener presents with a subcutaneous lesion on the hand, which he thinks resulted from a wound he received while he was making a sphagnum moss-wire frame for a floral wreath. The nodule has ulcerated and not healed despite use of antibacterial cream, and a new nodule is forming above the original lesion. What is the most likely appropriate treatment for this infection?

A 46-year-old male presented with abnormal pigmentation on the trunk, back, abdomen, and proximal extremities. Fine, dust-like scales covered the lesions. Dermoscopy shows a well-demarcated white area with patchy and diffuse scaling, predominantly in skin furrows. A skin biopsy was performed. What is the most likely causative organism?