Introduction: Psoriasiform disorders are a group of inflammatory skin conditions characterised by a shared histopathological reaction pattern. Data describing their demographic and histopathological profile from private pathology laboratories in Nigeria remain limited, as most existing studies are drawn from tertiary hospital settings.
Objective: To describe the age, sex, biopsy procedure, and anatomical site distribution of psoriasiform disorders diagnosed at Histoconsult, a private pathology laboratory in Abuja, Nigeria.
Methods: This was a retrospective, descriptive cross-sectional study of 190 histologically confirmed cases of psoriasiform disorders diagnosed at Histoconsult over 10 years from January 2016 to December 2025. Data on patient age, sex, biopsy procedure, and anatomical site were extracted from archived histopathology records and analysed using descriptive statistics.
Results: Patients aged 30–49 years accounted for the largest proportion of cases (25.8%), followed closely by those aged 10–29 years (25.3%); age was unrecorded or indeterminate in 29.4% of cases. Sex distribution was nearly equal, with males comprising 49.5% and females 48.4% of cases. Punch biopsy was the predominant sampling procedure (56.3%), followed by shave biopsy (42.1%), while incisional, excisional, and other procedures were rare (0.5% each). The scalp (18.4%), lower limb (17.9%), and upper limb (17.4%) were the most frequently biopsied anatomical sites, though the site was unspecified in 21.1% of cases.
Conclusion: Psoriasiform disorders in this private laboratory cohort predominantly affected young to middle-aged adults, with a nearly balanced sex distribution and a predilection for the scalp and limbs, consistent with broader literature. However, a substantial proportion of records lacked complete demographic and anatomical data, highlighting the need for standardised histopathology documentation practices. These findings contribute epidemiological data from an underrepresented segment of Nigeria’s pathology service landscape.