18F-fluorocholine PET/CT detects parathyroid gland hyperplasia as well as adenoma: 401 PET/CTs in one center.

Background: During the past decade, F-fluorocholine (FCH) PET/CT has been continuously performed at Tenon Hospital (Paris, France) for the detection of hyperfunctioning parathyroid glands (PT).

Methods: A cohort of 401 patients, deliberately referred for HPT since September 2012, has been analyzed. The aim of this real-life retrospective study was to determine the diagnostic utility of FCH in this setting, overall and in subgroups according to the type of hyperparathyroidism (HPT), the context of FCH in the imaging work-up and in the patient's history: initial imaging or persistence or recurrence after previous parathyroidectomy (PTX).

[A case of long form Covid-19 reported by a suffering teenager].

Long-term Covid-19 is now part of our lives and can be questioned by adolescents and their families when faced with long- lasting and unexplained symptoms. This is the case of Alice, a 16-year-old teenager treated at the Cochin Hospital's adolescent centre, who presents digestive disorders and strange body sensations mas-king anxiety-depressive affects.

[Social networks and confinement, a real impact on families].

The various lockdowns linked to the Covid-19 epidemic have modified the use of communication tools, the Internet and social networks. In the context of the walk-in clinic or the child psychiatric evaluation interviews conducted at the Maison des adolescents of the Cochin Hospital in Paris, families were able to discuss the difficulties arising from this new use. Certain transgenerational, cultural and usual misunderstandings were discussed.

[A mindfulness meditation group for teenagers].

A cognitive therapy program based on mindfulness meditation has been offered at the "maison des adolescents" of Cochin Hospital for the past year and a half. After their participation, the adolescents were able to talk about their experiences in this group. The latter allows a different, innovative and interesting approach to clinical nursing.

[Clear cell sarcoma or gastrointestinal neuroectodermal tumor (GNET) of the tongue? Case report and review of the literature of an extremely rare tumor localization].

Clear cells sarcomas (CCS) are exceptionally rare in the tongue, with, to our knowledge, only three previous reports in anglo-saxon literature. Through our case, we will discuss the differential diagnosis of clear cells tumors of the tongue and bring this tumour closer to the newly described entity of the gastrointestinal tract named "clear cells sarcoma-like gastrointestinal (SCCLGI)", recently renamed "gastrointestinal neuroectodermal tumour (GNET)". SCCLGI/GNET share morphological and molecular characteristics with SCC but had until then been observed only in the digestive tract.