Introduction: Trichobezoar is a rare disorder that almost exclusively affects young females. Up to 90% between 13 and 20 years of age. The current study aims to report and discuss a rare case of Misdiagnosis of Trichobezoar. Case presentation: A 18-year-old girl student patient admitted to the Baxshin hospital, with a large trichobezoar filling the entire stomach with a long tail of hair extending within the pylorus into the proximal jejunum at a length of 70 cm; associated with abdominal pain, constipation, and vomiting. Laboratory data showed mild iron deficiency anemia, with a normal liver, and renal function test, patients' electrolytes showed a normal profile. Confirmation of the presence of the mass was done through abdominal Computed Tomography (CT) with contrast. The physician initially diagnosed as alopecia and suspected the abdominal pain was related to the postprandial emesis because the patient didn't provide a history of trichotillomania and used treatment for alopecia for a long time. Discussion: The presence of a mass in the abdomen of a child is considered one of the most severe findings. Physical examination of the patient plus a full history taken, and the age of the patients provide a clear clue to the origin of the mass. Further investigation, including laboratory data and imaging findings, provides better understanding and a firm diagnosis. Trichobezoar should be considered by the physicians in this case. Conclusion: In the early diagnosis of the trichobezoar, the physicians should investigate for any medical history of clinical trichophagia, trichotillomania, or a psychological problem. Highlights:

In poor countries, due to the limited resources, mostly they prescribe medications without proper diagnosis. The aim of this report is to show diagnostic bias of COVID-19 case. A 17-year-old male patient was presented to the Hospital with a fever up to 39 °C associated with rigor, sweating, generalized body pain, myalgia, fatigue, loss of appetite, headache, and multiple joint pain with no swelling and redness. The vital signs were steady on physical examination, except temperature which was 39 °C. The chest was clear, and the pulse rate was 90 beats per minute. The heart rate relative bradycardia and lungs were normal. Both a PCR test for COVID-19, and a viral assay ELISA were negative. After further investigations, the culture findings revealed the strong development of Gram-negative coccobacilli (Salmonella serotype Typhi) bacteria under the microscope, which was confirmed by using VITEK 2 to identify it. and treated with ciprofloxacin tab, two times per day for five days and amikacin ampule 500 mg IV every 24 hours for 10 days. Fever is a well-known sign of COVID-19 infection which has been observed in 83%–98% of patients with COVID19. As a result, it may be difficult to tell the difference between COVID-19 and other febrile infections, causing delays in diagnosis and treatment and may blind the physician from considering other febrile illnesses. Physicians should construct more comprehensive differential diagnoses for people who experience fever, headache, or myalgia symptoms that are linked to a pandemic. COVID-19.

Bones are potential foreign bodies that could be accidentally ingested, leading to several symptoms varying from asymptomatic to perforation of the gastrointestinal tract. However, these cases are rare but may be misdiagnosed with other common diseases such as appendicitis. We present in this case a 25-year-old male who presented with appendicitis symptoms, after appendectomy the patient had the same complaint, But the colonoscopy demonstrated a meat bone in the terminal ileum and was removed with the same device. Finally, he was discharged from the hospital without complications and after decreasing abdominal pain. According to the literature review, this is one of the rare cases of using colonoscopy to treat bone impaction non-operatively.