OCD affects roughly 1–⁠2% of adults (somewhat more women than men), and under 3% of children and adolescents.A person with OCD knows that the symptoms are unreasonable and struggles against both the thoughts and the behavior. Their symptoms could be related to external events they fear (such as their home burning down because they forget to turn off the stove) or worry that they will behave inappropriately.It is not certain why some people have OCD, but behavioral, cognitive, genetic, and neurobiological factors may be involved. Risk factors include family history, being single (although that may result from the disorder), and higher socioeconomic class or not being in paid employment. Of those with OCD about 20% of people will overcome it, and symptoms will at least reduce over time for most people (a further 50%). Selective mutism
Selective mutism (SM) is a disorder in which a person who is normally capable of speech does not speak in specific situations or to specific people. Selective mutism usually co-exists with shyness or social anxiety. People with selective mutism stay silent even when the consequences of their silence include shame, social ostracism or even punishment. Selective mutism affects about 0.8% of people at some point in their life.Testing for selective mutism is important because doctors must determine if it is an issue associated with the childs hearing, movements associated with the jaw or tongue, and if the child can understand when others are speaking to them.
A placental site nodule (PSN) is benign remnant from a previous pregnancy. Presentation
They are typically asymptomatic and found incidentally. Pathology
PSNs are intermediate trophoblastic remnants. Diagnosis
PSN are diagnosed by examining the tissue under a microscope, usually obtained with a dilation and curettage. Typically, they consist of pink (hyaline) material using the standard stain and contain few cells. Bizarre multinucleated cells may be present; however, there is no mitotic activity. The differential diagnosis includes (cervical) squamous cell carcinoma, gestational trophoblastic disease, and exaggerated placental site. Prognosis
PSN are benign. Once removed, they do not require any treatment and do not recur. See also
Gestational trophoblastic disease
Placental site trophoblastic tumour

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