Here are 2 clinical images of cellulitis from the medical textbooks:

Fig. 14.17 Cellulitis - Shows intense erythema, edema, blistering, and skin breakdown extending from the ankle up the lower leg. The erythema is diffuse and non-demarcated, with areas of vesicle rupture and discharge - classic for suppurative subcutaneous inflammation. Source: Andrews' Diseases of the Skin - Clinical Dermatology

Fig. 107.5 MRSA Abscess With Cellulitis - Demonstrates a central fluctuant abscess (staphylococcal) surrounded by the erythematous, swollen soft tissue characteristic of cellulitis. This combination pattern - central pus collection with peripheral spreading infection - is a common MRSA presentation. Source: Rosen's Emergency Medicine: Concepts and Clinical Practice

Here are 4 more clinical images related to cellulitis, covering different types and anatomical locations:

Fig. 36-4 Histiocytoid Giant Cellulitis-like Sweet Syndrome - Widespread erythematous plaque on the lateral thigh in a 72-year-old woman with myelodysplastic syndrome. This is a rare neutrophilic dermatosis that closely mimics true bacterial cellulitis. Source: Fitzpatrick's Dermatology, Vol. 1-2

Fig. 13.21 Dissecting Folliculitis (Dissecting Cellulitis of the Scalp) - Shows patchy alopecia with perifollicular inflammation on the scalp. This chronic suppurative condition forms intercommunicating sinus tracts and predominantly affects adult Black men at the vertex and occiput. Source: Andrews' Diseases of the Skin - Clinical Dermatology

Figure 88-7 Dissecting Cellulitis - More advanced disease showing confluent suppurative, crusted nodules over the scalp vertex. Follicular occlusion leads to abscesses and deep dermal sinus tracts, ultimately causing scarring alopecia. Source: Fitzpatrick's Dermatology, Vol. 1-2

Figure 154-11 (A) - Facial/Buccal Cellulitis - Unilateral facial swelling with erythema and warmth around the nose/buccal region, characteristic of Haemophilus influenzae type b cellulitis seen in young children (3-24 months). The affected area classically has a violaceous hue and is associated with bacteremia. Source: Fitzpatrick's Dermatology, Vol. 1-2

Here are the clinical images for urticaria and angioedema from the medical textbooks:

Figure 41-1 - A composite showing:

Source: Fitzpatrick's Dermatology, Vol. 1-2

Figure 41-2 - Showing the range of urticarial presentations:

Source: Fitzpatrick's Dermatology, Vol. 1-2

Fig. 6.29 Angioedema - Severe angioedema of the foot showing marked swelling with dusky/ecchymotic discoloration of the toes and diffuse erythema of the dorsum - a deep dermal/subcutaneous edema pattern. Can be drug-induced (e.g., NSAIDs, ACE inhibitors). Source: Andrews' Diseases of the Skin - Clinical Dermatology

Fig. 7.19 Angioedema of the lips - Classic angioedema showing massive swelling of the lower lip and protruding tongue. This is a potentially life-threatening presentation when involving the tongue/larynx, causing airway obstruction. Commonly associated with ACE inhibitors (Blacks are ~5x higher risk), penicillin allergy, or HAE. Source: Andrews' Diseases of the Skin - Clinical Dermatology