Observations:
Case 1: A 28-year-old male presented with multiple trichilemmal
cysts of the scalp. Physical examination revealed, in addition, a
thickened scalp with multiple symmetric skin folds from vertex to
occipital area (figure 1). The systemic examination did not reveal any
neurologic, ophthalmologic, or metabolic anomalies. Laboratory
investigations were within the normal range limit. The diagnosis of
primary essential CVG was retained and the patient required only
excision of the cysts.
Case 2: A 32-year-old male with a history of epilepsy was
referred to our consultation for a drug reaction secondary to
phenobarbital. On examination, apart from the skin lesions consistent
with the drug reaction, the patient had cerebriform folds on his
forehead. The furrows were running horizontally and had a width of 1 to
2 cm (figure 2). He didn’t have any lesions on the scalp. No other
anomalies were found. The diagnosis of primary non-essential CVG
associated with epilepsy and involving only the forehead was retained.
Case 3: A 54-year-old female treated for hypertension,
dyslipidemia, and a heart rhythm disorder, presented to our department
with an occipital tumefaction evolving for a few years. The examination
revealed cerebriform transverse occipital skin folds. The remaining
physical examination was otherwise unremarkable. Given her chronic
metabolic pathologies, secondary CVG was diagnosed.