Authorities as the decision cited them, with how this panel applied each one.
Escobedo v. Marshalls (2005) 70 Cal.Comp.Cases 604 (Appeals Board en banc)
A medical opinion must be based on pertinent facts, adequate examination and accurate history, and must set forth the basis and reasoning in support of conclusions to be substantial evidence.
Applied to evaluate the substantiality of medical opinions in this case.
From the decision · page 7To be substantial evidence a medical opinion must be based on pertinent facts, on an
adequate examination and accurate history, and it must set forth the basis and the reasoning in
support of the conclusions. (Escobedo v. Marshalls (2005) 70 Cal.Comp.Cases 604 (Appeals
Board en banc).) A medical opinion is not substantial evidence if it is based on facts no longer
germane, on inadequate medical histories or examinations, on incorrect legal theories, or on
surmise, speculation, conjecture, or guess. (Place v. Workmen's Comp. Appeals Bd. (1970) 3
Cal.3d 372 [35 Cal.Comp.Cases 525]; Hegglin v. Workmen's Comp. Appeals Bd. (1971) 4 Cal.3d
162 [36 Cal.Comp.Cases 93].)
Place v. Workmen's Comp. Appeals Bd. (1970) 3 Cal.3d 372; Hegglin v. Workmen's Comp. Appeals Bd. (1971) 4 Cal.3d 162
A medical opinion is not substantial evidence if based on facts no longer germane, inadequate histories or examinations, incorrect legal theories, or speculation.
Applied to reject medical opinions lacking substantial evidence due to inadequate history or examination.
From the decision · page 7To be substantial evidence a medical opinion must be based on pertinent facts, on an
adequate examination and accurate history, and it must set forth the basis and the reasoning in
support of the conclusions. (Escobedo v. Marshalls (2005) 70 Cal.Comp.Cases 604 (Appeals
Board en banc).) A medical opinion is not substantial evidence if it is based on facts no longer
germane, on inadequate medical histories or examinations, on incorrect legal theories, or on
surmise, speculation, conjecture, or guess. (Place v. Workmen's Comp. Appeals Bd. (1970) 3
Cal.3d 372 [35 Cal.Comp.Cases 525]; Hegglin v. Workmen's Comp. Appeals Bd. (1971) 4 Cal.3d
162 [36 Cal.Comp.Cases 93].)
McClune v. Workers' Comp. Appeals Bd. (1998) 62 Cal.App.4th 1117
The Appeals Board has discretionary authority to further develop the record where evidence is insufficient to determine an issue.
Applied to order further development of the record in this case.
From the decision · page 8Any award, order, or decision of the Appeals Board must be supported by substantial
evidence. (Lab. Code, § 5952(d); Lamb v. Workmen's Comp. Appeals Bd. (1974) 11 Cal.3d 274,
281 [39 Cal.Comp.Cases 310]; Garza v. Workmen's Comp. Appeals Bd. (1970) 3 Cal.3d 312, 317
[35 Cal.Comp.Cases 500]; LeVesque v. Workmen's Comp. Appeals Bd. (1970) 1 Cal.3d 627, 635
[35 Cal.Comp.Cases 16].) The Appeals Board has the discretionary authority to further develop
the record where there is insufficient evidence to determine an issue that was submitted for
decision. (McClune v. Workers' Comp. Appeals Bd. (1998) 62 Cal.App.4th 1117, 1121-1122 [63
Cal.Comp.Cases 261].)