Figure 29.1 Candidiasis, whitish material attached to the tongue (thrush) Figure 29.2 Candidiasis, beefy red plaque at the axillae Clinical Differential Diagnosis (Skin Fold Rash) Intertrigo Tinea Psoriasis Erythrasma Seborrheic…
Figure 9.1 Verruca vulgaris Figure 9.2 Verruca vulgaris Clinical Differential Diagnosis Epidermal nevus Actinic keratosis Seborrheic keratosis Verruca vulgaris Histopathology The shave biopsy of the left knee was performed and…
Figure 15.1 Mycobacterium tuberculosis Figure 15.2 H&E 40× discrete subcutaneous nodule Figure 15.3 H&E 100×, outer wall consists of lymphocytes and histiocytes while the center is necrotic Figure 15.4 H&E…
Figure 19.1 H&E 40×, Histoplasmosis, most of the entire punch biopsy specimen contains dense inflammation Figure 19.2 H&E 100×, Histoplasmosis, confluent granulomas with scattered giant cells (arrow) Figure 19.3 H&E…
Figure 31.1 Demodex mite. A circular lesion marked by ink dots was biopsied Clinical Differential Diagnosis Fibrous papule Basal cell carcinoma Sebaceous hyperplasia Cyst Demodex folliculitis Histopathology Sections showed a…
Figure 22.1 Tinea versicolor, hypopigmented round-oval flat lesions Clinical Differential Diagnosis (Pigmentation changes with minimal erythema) Vitiligo Post inflammatory hypopigmentation Idiopathic guttate hypomelanosis Tinea versicolor Histopathology Sections showed minimal inflammation…
Figure 1.1 Bowenoid Papillosis arising in Condyloma acuminate Clinical Differential Diagnosis (Multiple red-brown, pigmented papules or plaque on genital skin) Junctional Nevus Seborrheic keratosis Psoriasis Bowenoid papulosis arising adjacent to…
Figure 2.1 Merkel cell carcinoma Clinical Differential Diagnosis (Raised erythematous lesion on sun exposed skin) Squamous cell carcinoma Actinic keratosis Merkel cell carcinoma Lymphoma Angiosarcoma Metastasis Histopathology The lesion on…
Figure 32.1 Scabies, extremely pruritic papules in a widespread pattern Clinical Differential Diagnosis Drug eruption Scabies Bedbugs Atopic dermatitis Contact dermatitis Urticaria stage of bullous pemphigoid Histopathology The first biopsy…
Figure 28.1 H&E 100× paracoccidiomycosis, a dense infiltrate of histocytes Figure 28.2 H&E 1,000×, note central yeast-like organisms with small daughter yeasts at the peripheral rim Serological tests are available…
