Final answer:
An open lesion with pus and loss of skin depth is likely an abscess or a pus-producing skin infection, often resulting from a bacterial infiltration of skin structures such as hair follicles. These require medical attention, antibiotics, and proper wound care.
Step-by-step explanation:
An open lesion accompanied by pus and loss of skin depth typically refers to an abscess or a similar type of skin infection. These infections can cause various skin lesions, ranging from smooth spots of discoloration on the skin to small raised bumps, or larger pus-filled bumps known as pustules. When the boundary of these lesions is less defined, they may resemble a cyst. The pus present is a sign of a suppurative process, which means pus-producing. Such lesions can result from a bacterial infection of deeper skin structures, such as hair follicles, which in severe cases can lead to systemic infections.
For example, a lesion that discharges pus and exhibits signs of inflammation such as redness and warmth, like the one described in the case of the college student Sam, is indicative of a bacterial infection. Infections like these should be promptly attended to by a healthcare professional to prevent further complications, ensure proper treatment, and promote healing. Sam's lesion, due to its suppurative nature, requires medical intervention with antibiotics and careful management.