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 30.1 H&E 100×, Leishmania, a mixed inflammatory infiltrate with scattered multi-nucleated Figure 30.2 H&E 1,000×, Leishmania, small clusters of organisms between the histiocytes Diffuse cutaneous leishmania is rare and…
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…
Figure 21.1 Compound dysplastic nevus, brownish-red papule on right breast Clinical Differential Diagnosis Nevus Lentigo Macular seborrheic keratosis Post inflammatory hyperpigmentation Compound dysplastic nevus with yeast (Pityrosporum) Histopathology Sections showed…
Figure 4.1 Herpes eruption on the interior portion of the left thigh Clinical Differential Diagnosis Drug eruption Bullous pemphigoid Pemphigus vulgaris Linear IgA disease Herpes simplex viral infection (type 2)…
Figure 25.1 Chromoblastomycosis infection of the arm Clinical Differential Diagnosis Bacteria abscess Fungal infection (Chromoblastomycosis) Diagnosis CHROMOBLASTOMYCOSIS is a chronic fungal infection that occurs in the cutaneous and subcutaneous tissues…
Figure 34.1 Cutaneous larva migrans, serpiginous pattern Differential Diagnosis Hookworm Impetigo Atopic Dermatitis Cutaneous Larva Migrans Diagnosis CUTANEOUS LARVA MIGRANS. The predominantly cause of human hookworm disease is the nematode…
Figure 24.1 Tinea capitis, focal and discrete hair loss Clinical Differential Diagnosis (Focal Hair Loss) Alopecia areta Trichotillomania Tinea capitis Lupus Syphilis Seborrheic dermatitis Bacteria folliculitis Histopathology A punch biopsy…
Figure 20.1 Onychomycosis of fingernails Clinical Differential Diagnosis (Friable nail) Psoriatic nail Bacteria infection Fungal/Yeast infection Mixed fungal and bacteria infection Lichen planus Pachyonchia Congenita Histopathology The nail clipping was…
Figure 16.1 Posterior neck showing folliculitis (Sycosis nuchae) Clinical Differential Diagnosis Folliculitis Adnexal tumor Cysts Acne keloidalis Diagnosis FOLLICULITIS is defined as inflammation of the pilosebaceous unit (Fig. 16.2). Clinically,…
